1. science
2. physics
3. optics

FREQUENCY-CONVERTED LASERS
Tunable Diode Lasers for Visible and UV Wavelengths
Standard systems and customized
solutions
TOPTICA’s standard frequency-converted
diode lasers are available at wavelengths
between 205 nm and 640 nm, with
only few spectral gaps. By combining
comprehension of diode laser technology
and extensive experience in frequency
conversion, we achieve the highest output
power levels and best performance in our
products. For customers who already
possess a single-frequency cw laser and
want to frequency-double its output,
TOPTICA
also offers a stand-alone
second-harmonic generator.
pro philosophy in frequency-converted
systems
Ease of use, best performance and
highest stability are key characteristics
of TOPTICA’s pro lasers. In TOPTICA’s
frequency-converted systems, the laser
head is machined from a solid metal
block for enhanced robustness against
vibrations, acoustic noise and temperature.
Integrated flexure-based mirror mounts
provide an unmatched long-term stability.
The “bow-tie” resonator SHG pro comes
in a closed design with entrance and exit
windows, and can be adjusted without
opening the cover lid.
Different product families are presented
on the next pages. Together with our
customers, TOPTICA’s experts will identify
the best product and tailor it according
to specific requirements in terms of
output power, wavelength and tunability.
For dedicated applications, we provide
pre-configured TOPSeller systems.
The SHG wavelength is tuned by altering
the fundamental laser color. Mode-hopfree tuning of some 10 GHz is realized by
scanning the fundamental laser while the
SHG resonator follows automatically.
If our standard product families do not
match your needs, we will investigate
options like sum-frequency generation.
Do not hesitate to challenge us!
38
Diode laser advantages
Compared to other frequency-converted
laser systems (like optically-pumped dye
lasers with subsequent doubling stages,
or frequency-doubled Ti:Sa lasers),
the advantages of semiconductor
configurations are the unnecessity for
external pump lasers and water cooling.
The diode laser systems are most
compact in size, extremely reliable,
conveniently operated, with low running
costs. Thanks to TOPTICA’s pro
design, even non-specialists can
perform adjustments.
Coarse tuning over several nm is achieved
by manually changing the wavelength of the
fundamental laser. Only if phase matching
has to be optimized a realignment of the
SHG resonator might be necessary.
www.toptica.com
Based on 17 years of experience in building frequency converted diode laser
systems, and several hundreds of units
installed in the field, TOPTICA’s frequencyconverted lasers will now enter an unprecedented level of stability, functionality and
performance. They will go digital!
As already demonstrated with our DLC DL
pro and DLC TA pro systems, this is a major step ahead. In addition to full classical
functionality, the DLC pro NLO systems
come with many new features of the digital world. By using the compact DLC pro
control electronics, we simplify the users’
daily work as much as possible.
FiberMon
With the FiberMon option, one can directly
monitor the optical power coupled to the
SHG output fiber. AutoAlign and PowerLock are ready to be used with FiberMon,
so the user has both optimization and
stabilization of the fiber output at hand.
Such, you get the best fiber pig-tailed
SHG system ever!
AutoAlign
In the past, the sturdy design of TOPTICA’s
frequency-converted lasers has set standards in the entire field. Today, using digital
electronics, we push even further. Thanks
to the AutoAlign option, the time-consuming task of laser system realignment
belongs to the past.
With built-in intelligence and servo-controlled flexure mirror mounts, the system optimizes the coupling of the beams
into TA and SHG cavity and output fiber.
Optimize your SHG power with one
simple click!
PowerLock
During their experimental runs, many of
our users rely on constant output power.
The excellent stability of our current
systems was improved further with
PowerLock. Residual power excursions
are cancelled automatically by controlling
the TA power. Users benefit from stable
SHG output powers, without having to
compensate for drifts externally.
102
Relative SHG Power [%]
100
98
96
94
92
90
88
With AutoAlign, the user starts optimization
of the beam alignment with one simple click.
Built-in servos and digital intelligence do the
rest of the job.
0
4
8
Iteration number
12
16
After intended misalignment the AutoAlign function re-optimizes the laser power. This measurement shows that the residual scattering of the
re-optimized power is well below one percent to
emphasize the performance and repeatability of
the AutoAlign function.
Features
• AutoAlign option: Hands-off coupling into TA, doubling cavity and fiber (with FiberMon)
• PowerLock for applications demanding constant powers during longterm operation
• FiberMon: Measure, control and optimize your fiber-coupled laser!
• Every system customized with respect to experimental needs
• EOM option: Independent low-noise error signal generation
140
1.2
120
0
1212 nm Linewidth: 4.9 kHz
606 nm Linewidth: 7.6 kHz
-10
1.0
0.8
80
0.6
60
0.4
40
Fiber Output Power
0.2
FiberMon Signal
20
0
10
20
30
Time [h]
40
50
0.0
60
The PowerLock keeps the output power stable, shown here including
the FiberMon option.
www.toptica.com
-30
-40
-50
-60
-70
TA Power
0
Self-Heterodyne Spectrum [a.u.]
-20
100
FiberMon Signal [a.u.]
Fiber Output Power [mW]
Convenience & precision
The DLC pro control rack allows for full
stand-off remote control and operation
of the laser head. For working in the lab,
the touch display allows direct control.
For independent and remote control, a computer interface provides full
access to all laser parameters. Just switch
on your laser and start the experiment!
Furthermore, the users benefit from our
lowest-noise digital control electronics. Since the master laser is based on
TOPTICA’s DL pro technology, narrowest
linewidths are routinely achieved, and
sensitivity to environmental perturbations
is minimized to an extreme level.
-80
77
78
79
80
Frequency [MHz]
81
82
83
Owing to the superior noise performance of our new DLC pro electronics,
we routinely achieve narrowest linewidths.
39
DLC DL-SHG pro
Frequency Doubled Diode Laser
DLC DL-SHG pro — Medium-power frequencydoubled diode laser.
Key Features
• DL pro diode laser + SHG pro secondharmonic generator in one box
• UV, blue, green, yellow or orange
wavelengths: 325 nm .. 640 nm
• 1 – 40 mW output power
(wavelength dependent)
• PowerLock
• Tunable single-frequency emission,
typ. linewidth < 200 kHz
• Probe-beam output of fundamental
laser and SHG
• High-power upgrade possible
(depending on amplifier availability)
Medium-power, tunable UV, blue,
green, yellow or orange light
The frequency-doubled diode laser system DLC DL-SHG pro provides best
performance at moderate initial prize.
The system comprises a solid laser head
and a DLC pro digital electronics rack,
including all modules needed to operate
the fundamental diode laser, to stabilize
the SHG resonator with respect to the laser
wavelength, and to thermally control the
NLO crystal. Frequency locking is available with the Lock option, and further linewidth narrowing is possible using fast lock
modules (DigiLock 110, FALC 110) in
combination with DLC ext.
optical isolators (60 – 90 dB) prevent
unwanted feedback into the diode laser.
The NLO crystal and the mirror coatings
are carefully selected. While stability and
ease of use are common for all systems,
other parameters like output power, coarse and fine tuning depend on the target
wavelength and on the specific design.
Typical values are: Wavelength within
325 nmto 640 nm, output power from
1 mW to 40 mW, coarse tuning 2 nm
to 10 nm, and mode-hop-free fine tuning
10 GHz to 30 GHz. Other specifications
are listed on page 47, table “Specifications
Frequency-Converted Lasers”.
Options
Patented beam-steering mirror mounts
guarantee best short and long-term
stability of the output power. With the
AutoAlign option, servo-controlled mirrors
and built-in intelligence re-optimize the
beam alignment into the SHG cavity at
the push of a button. It is even available
for fiber-coupled systems with the
FiberMon option! Tedious beam-walks
belong
to
the
past.
A probe-beam output of the fundamental laser is also provided. Each individual DL-SHG pro system is a customized
laser. The laser head features the patented grating-stabilized diode laser DL
pro, and the resonant second-harmonic
generator SHG pro. High-performance
• AutoAlign
• FiberMon option (for SHG wavelengths
of 400 nm – 640 nm)
• Integrated electro-optic modulator
• Fiber output of fundamental probe beam
and SHG beam
• Double-piezo lock
• Fast analog modules for further linewidth
narrowing
• SYST control electronics available upon
request
• SHG pro key features see page 42
Optical isolator
DL pro
Folding
mirrors
Mode matching optics
PD
Beam shaping
optics
Sketch of DL-SHG pro system: Medium-power solution
at a variety of wavelengths from UV to orange.
40
Resonant doubling cavity
www.toptica.com
DLC TA-SHG pro
Frequency-Doubled High-Power Diode Laser
High-power, tunable UV, blue, green
laser, yellow or red laser light
The DLC TA-SHG pro, a frequency-doubled amplified diode laser, is the system
of choice if narrow-band, tunable laser
radiation with up to 1200 mW output power in the UV to visible wavelength range
is required. Typical applications are laser
cooling or trapping of atoms and ions,
metrology, spectroscopy, holography
and interferometry. The DLC TA-SHG
pro is a DL-SHG pro system (p. 40) with
an additional tapered-amplifier (TA) stage to increase the available power of the
fundamental light. The control modules
Options
• AutoAlign
• FiberMon option (for SHG wavelengths
of 400 nm – 640 nm)
• Integrated electro-optic modulator
• Fiber output of fundamental probe beam
and SHG beam
• Double-piezo lock
• Fast analog modules for further linewidth
narrowing
• SYST control electronics available upon
request
Optical isolator
for the TA current and temperature fit
into the DLC pro rack. Carefully selected optics and NLO crystals together
with advanced manufacturing processes
allow output powers up to 1200 mW.
All other premium characteristics of the
DL-SHG pro are maintained in the TASHG pro. Ultra-low noise sensitivity, best
long-term stability of the laser frequency and output power, as well as ease
of use are just a few of them. Patented
beam-steering mirror mounts guarantee
best short and long-term stability of the
output power. With the AutoAlign option, servo-controlled mirrors and built-in
intelligence re-optimize the beam alignment into the TA chip and the SHG cavity at the push of a button. Active power
stabilization of the output (PowerLock)
is integrated. Both optimization and
stabilization are available for fiber-coupled systems with the FiberMon option.
A probe-beam output of the fundamental laser is also provided. The TA-SHG
pro lasers are available within a wide
wavelength range (currently available
316 .. 660 nm with only few spectral gaps). Being customized systems,
TA-SHG pro characteristics might
vary
from
solution
to
solution.
Depending on the design wavelength,
typical output powers range from
10 mW to 1200 mW. Other parameters
are shown on page 47.
DL pro
TA-SHG pro — High-power, cw, tunable UV,
blue, green, yellow or red laser source.
Key Features
• TA pro diode laser + SHG pro secondharmonic generator in one box
• UV, blue, green, yellow or red
wavelengths: 316 nm .. 660 nm
• 10 mW – 1200 mW output power
(wavelength dependent, incl.
PowerLock)
• PowerLock
• Up to 15 nm coarse tuning
(wavelength dependent)
• Tunable single-frequency emission,
typ. linewidth < 200 kHz
• Probe-beam output of fundamental
laser and SHG beam
• SHG pro key features see page 42
Folding
mirrors
Tapered
amplifier
Mode matching optics
PD
Beam shaping
optics
Resonant doubling cavity
www.toptica.com
Schematic of the TA-SHG pro laser head:
High power at common and exotic wavelengths.
41
SYST SHG pro
Stand-Alone Second Harmonic Generator
Key Features
• Air-sealed bow-tie cavity with highest
mechanical and thermal stability
• Customized optics and AR-coated
NLO crystal selection
• Electronics for Pound-Drever-Hall
locking with automatic relock and
temperature control for NLO crystal
included
• Adjustments with closed head /
resonator
• Optional: Double-Piezo Lock with up
to 30 kHz bandwidth
Professional unit for frequency doubling of cw lasers
The
stand-alone
Second-Harmonic
Generator SHG pro is the device of choice
for frequency-doubling of existing cw lasers. The SYST SHG pro package comprises mode-matching optics for the external
laser, ultra-stable beam-steering mirrors,
electronics for Pound-Drever-Hall stabilization with automatic relocking of the
resonator length and temperature control
of the NLO crystal, the bow-tie resonator
in pro design, and beam-shaping
optics for the frequency-doubled light.
The AR-coated NLO crystal and the
mirror coatings are specially selected
according to customer requirements.
The Double-Piezo Lock – two integrated
piezo-electric actuators for the stabilization
of the resonator length – is another
Options
• Integrated electro-optic modulator
• Fiber input
• Fiber output of wavelengths
above 350 nm
• Double-Piezo Lock
specialty of the SHG pro. One actuator,
driven by a FALC 110 module, accomplishes high-bandwidth locking while the
other one is used in conjunction with a
PID 110 for large-amplitude regulation.
TOPTICA offers competent technical
support to adapt the SHG pro to many
varieties of existing laser systems.
The SYST SHG pro will be installed and
demonstrated on-site.
Specifications SHG pro
Wavelength range*
410 nm - 1600 nm → 205 nm - 800 nm
Optical conversion efficiency*,**
410 nm - 500 nm → 205 nm - 250 nm
5 - 10 %
500 nm - 700 nm → 250 nm - 350 nm
12 - 20 %
700 nm - 900 nm → 350 nm - 450 nm
20 - 30 %
900 nm - 1600 nm → 450 nm - 800 nm
30 - 60 %
General characteristics
Beam quality, diameter / height
Nearly diffraction limited, single-mode fiber-coupling efficiency > 60 % @ 400 nm, 1 - 2 mm / 50 mm
Tuning range
> 60 GHz @ 400 nm output (continuous), typ. 5-10 nm coarse
Polarization
Linear, > 1000:1
Residual infrared
Typ. < 0.1 %
Locking scheme***
Pound-Drever-Hall with automatic relock, Double-Piezo Lock optional
Output power noise
Typ. < 1 % (depending on laboratory conditions and fundamental laser)
SHG cavity leak rate
cavity leak rate < 10-3 mbar l s-1
Dimensions (H x W x D)
90 x 216 x 400 mm3 (head) and 19“ control rack
*Full wavelength range coverage requires several NLO crystals and mirrors, other wavelengths upon request.
**Assuming 1 W single-frequency (< 1 MHz linewidth) cw laser input. Max. output power may be limited by crystal and optics lifetime.
***May require additional EOM (purchase and integration from TOPTICA recommended)
Mode matching optics
Laser
PD
Beam shaping
optics
Resonant doubling cavity
Sketch of SHG pro, stand-alone resonant
frequency-doubling cavity.
42
SYST SHG pro – flexible stand-alone secondharmonic generator for single-frequency cw lasers.
www.toptica.com
SYST DL-FHG pro
Frequency-Quadrupled Diode Laser
Options
• Integrated electro-optic modulator
• Double-Piezo Lock for each SHG stage
(strongly recommended)
• Fiber output of fundamental probe beam
• Additional probe-beam output after first
SHG locking stage
• Locking modules DigiLock 110,
FALC 110, PID 110
• High-power upgrade of the DL-FHG
pro available also at later stage if an
appropriate amplifier for the fundamental
laser is available.
Taking diode lasers to UV wavelengths
For applications that require low-power,
single-frequency cw lasers in the mid-UV,
TOPTICA has developed the DL-FHG pro
laser platform. By uniting an externalcavity diode laser DL pro and two
cascaded frequency doubling stages
SHG pro, single-frequency radiation
at wavelengths from 224 nm .. 320 nm
is achieved. The system comes with
complete driving electronics (one doublestage DC 110/19” rack).
Despite the challenge of mastering two
resonant frequency-doubling steps, the
DL-FHG pro platform provides excellent
stability. This is a result of many years
of R&D at TOPTICA. Careful selection of
efficient NLO crystals, stable air-sealed
SHG resonators and Pound-Drever-Hall
locking for both stages – in short, the pro
design – make the difference between
self-built lasers and TOPTICA’s solution.
Typical power levels range from 50 µW
to 1 mW, typical mode-hop-free tuning is
greater than 30 GHz, and coarse tuning with
mirror alignment typically covers 1 - 4 nm.
Optical isolator
DL pro
DL-FHG pro — Tunable, narrow-linewidth cw
UV laser.
Key Features
• DL pro diode laser + two cascaded
SHG pro second-harmonic
generators in one box
• Available wavelengths:
224 nm .. 320 nm
• Up to 1 mW output power
(wavelength dependent)
• 1 nm - 4 nm coarse tuning
(wavelength dependent)
• Tunable single-frequency emission,
typ. linewidth < 500 kHz
• Probe-beam output of
fundamental laser
Folding
mirrors
• High-power upgrade possible
(depending on amplifier availability)
• SHG pro key features see page 42
Mode matching optics
PD
PD
Beam shaping optics
www.toptica.com
Schematic of the DL-FHG pro laser head:
A single-frequency, tunable external-cavity diode laser is frequency-quadrupled in two cascaded frequency doubling stages.
43
SYST TA-FHG pro
Frequency-Quadrupled High-Power Diode Laser
UV meets high power
TOPTICA’s TA-FHG pro unites a gratingstabilized diode laser TA pro, i.e. a highpower semiconductor amplifier as fundamental light source, and two cascaded
second-harmonic generation stages SHG
pro – all integrated in one solid laser head
to reliably provide high-power, mid-UV
laser light.
Close-up of open TA-FHG pro — Tunable singlefrequency UV laser with high output power.
Key Features
• TA pro diode laser + two subsequent
second-harmonic generators
SHG pro in one box
• Available wavelengths:
205 nm .. 330 nm
• 1 mW - 300 mW output power
(wavelength dependent)
True cw single-frequency operation with
linewidths below 500 kHz (coherence
length > 200 m), output power levels up
to 300 mW, 20-40 GHz of mode-hopfree tuning and coarse-tuning ranges of
1 – 4 nm make up the hero characteristics of this unique laser. It is equipped with
state-of-the-art electronics to drive the
laser diode and TA chip, to thermally
control the two NLO crystals, and to
stabilize the two SHG resonators.
The laser can be operated like a DL pro
external-cavity diode laser. Neither an
external pump source nor water cooling is required. Typical applications of
• 1 nm - 4 nm coarse tuning
(wavelength dependent)
• Tunable single-frequency emission,
typ. linewidth < 500 kHz
• Probe-beam output of
fundamental laser
Options
• Integrated electro-optic modulator
• Double-Piezo Lock for each SHG stage
(strongly recommended)
• Fiber output of fundamental probe beam
• Additional probe-beam output after
amplified fundamental laser and/or after
first SHG locking stage
• Locking modules DigiLock 110,
FALC 110, PID 110
TA-FHG pro lasers are ultra-high-resolution spectroscopy, laser cooling of
atoms (e.g. Hg, H, Mg), ions (e.g. Mg+,
Yb++, Al+, In+, Cd+,…), molecules (NO) or
condensed-matter studies via angleresolved photoemission spectroscopy
(ARPES), and parametric down-conversion to the visible range.
Optical isolator
DL pro
Folding
mirrors
• SHG pro key features see page 42
Tapered
amplifier
Mode matching optics
PD
PD
Schematic of the TA-FHG pro laser head:
High-power tunable UV laser radiation is
generated by two-fold frequency doubling of an
amplified diode laser TA pro.
44
Beam shaping
optics
www.toptica.com
TA-SHG pro TOPSeller Systems
Pre-Configured Lasers for Selected Applications
Options
• AutoAlign option
• FiberMon option (for SHG wavelengths
of 400 nm – 640 nm)
• Integrated electro-optic modulator
Pre-configured laser systems
TOPTICA’s TOPSellers are designed for
some of the most common applications
of our frequency-converted systems:
Two-photon Rydberg excitation of rubidium via the D1 or D2 line, laser cooling
of strontium, sodium, ytterbium (ions and
atoms), dysprosium and calcium ions.
• Fiber output of SHG beam
• Double-piezo lock
• Fiber output of fundamental probe beam
• Analog modules for further linewidth
narrowing
TOPSeller
Wavelength
Output
power
Yb+ Cooling
369.5 nm
40 mW
Ca+ Cooling
Strontium
Cooling
397 nm
461 nm
400 mW
500 mW
Another popular application is information storage in praeseodymium.
Characteristics and specifications are
matched to the requirements of the
respective application. TOPSellers are
proven and recommended by TOPTICA
customers.
More helpful
wavelengths
available from
TOPTICA
• One laser head (DL pro master laser
+ tapered amplifier + air-sealed SHG
pro stage) and DLC pro rack
20 GHz
1 nm
399 nm
2 nm
423 nm,
729 nm,
850 nm,
854 nm,
866 nm
• Tunable single-frequency
emission with < 500 kHz linewidth
and 400 mW – 1000 W output power
(TOPSeller dependent)
4 nm
679 nm,
688 nm,
689 nm,
698 nm,
707 nm,
480 nm,
497 nm,
813 nm
20 GHz
15 GHz
473-481 nm
600 mW
20 GHz
8 nm
Rydberg Rb II
479-488 nm
800 mW
20 GHz
9 nm
780 nm,
795 nm
5 nm
399 nm,
578 nm,
759 nm,
1388 nm
400 mW
20 GHz
Sodium cooling
589 nm
1000mW
10 GHz
2 nm
PrStorage
606 nm
800 mW
15 GHz
6 nm
Dysprosium
Cooling
626nm
800 mW
20 GHz
10 nm
www.toptica.com
• Specifications matched to experimental requirements
Coarse
tuning
Rydberg Rb I
556 nm
Key Features
Mode-hopfree tuning
780 nm,
795 nm
Ytterbium
Cooling
TOPSeller TA-SHG pro systems for selected
applications.
421 nm,
741 nm
• Frequency stability
< 200 MHz/K (< 100 MHz/K typ.)
• Excellent beam profile of SHG output
• Probe-beam output of
fundamental laser
• SHG pro key features see page 42
Laser-cooled Sr atoms.
Ch. Lisdat, PTB Braunschweig, Germany.
45
TA-FHG pro TOPSeller Systems
Pre-Configured Lasers for Selected Applications
TOPSeller TA-FHG pro systems for selected
applications.
Key Features
Pre-configured laser systems
After years of experience and continuous
improvements we present, for the first
time, TOPSellers for our TA-FHG pro
systems. As it is the case for all TOPSellers, these systems are optimized and
have proven highly successful for their
respective application.
These are (Anti-)Hydrogen 1S-2S spectroscopy, mercury cooling, magnesium
ion cooling and beryllium ion cooling.
The lifetimes of our systems are unprecedented thanks to our sealed cavity
(leak rate < 10-3 mbar l s-1).
Options
• Integrated electro-optic modulator
• Double-Piezo Lock
• Fiber output of fundamental probe beam
• Second output of fundamental
light after TA stage
• Fiber output of SHG probe beam
• PDD 110/F/Dual + locking modules
DigiLock 110, FALC 110, PID 110
• Extreme lifetime
(cavity leak rate < 10-3 mbar l s-1)
• High power levels up to 300 mW
150
• Tunable single-frequency emission
with < 500 kHz linewidth and
30 mW - 300 mW output power
(TOPSeller dependent)
100
FHG Power [mW]
• One laser head (DL pro master laser
+ tapered amplifier + 2x air-sealed
SHG pro stage)
1,5
FHG -0,03 %/h
125
TA
1,0
75
50
0,5
TA, SHG Power [a.u.]
• Specifications matched to
experimental requirements
SHG -0,016 %/h
• < 400 MHz/K (< 200 MHz/K typ.)
frequency stability
25
0
• Excellent beam profile of FHG output
0
• FHG pro key features see page 44
20
30
Time [h]
40
50
More helpful wavelengths
available from TOPTICA
Wavelength
Output power
Mode-hop-free tuning
Coarse tuning
2x Lyman alpha
243 nm
60 mW
30 GHz
1 nm
Mercury cooling
254 nm
60 mW
30 GHz
1 nm
265.6 nm
Mg cooling
280 nm
30 mW
30 GHz
1 nm
285 nm
Be cooling
313 nm
300 mW
30 GHz
2 nm
399 nm
+
0,0
60
Example of a lifetime measurement of a TOPSeller Mercury system at 254 nm.
TOPSeller
+
46
10
www.toptica.com
Specifications
Frequency-Converted Diode Lasers
Class 4 Laser Product EN 60825-1:2007. Visible or insible laser radiation.
Avoid eye or skin exposure to direct or scattered radiation. Caution - Class
4 visible and/or insivisble laser radiation when open. Avoid exposure to the
beam, avoid eye or skin exposure to direct or scattered radiation. Magnetic
fields may be present which may affect the operation of certain pacemakers.
Specifications
DL-SHG pro / TA-SHG pro
DL-FHG pro / TA-FHG pro
Center wavelengths
325 .. 640 nm* / 316 .. 660 nm*
224 .. 320 nm* / 205 .. 330 nm*
Typical power range
1 .. 40 mW / 10 .. 1200 mW
50 .. 1000 μW / 1 .. 300 mW
Typical tuning range
2 .. 15 nm
1 .. 4 nm
Typical mode-hop-free tuning range
~ 20 GHz
~ 30 GHz
Typ. linewidth (µs)
Long-term frequency change with room temperature**
500 kHz
1 MHz
< 200 MHz / K
(typ. < 100 MHz / K)
< 400 MHz / K
(typ. < 200 MHz / K)
Spatial mode
Nearly diffraction limited, collimated
Beam height
50 mm
Probe-beam output
Fundamental light with ~ mW power level
Polarization
Linear, > 100:1 (typ.)
Power stability of frequency-converted light (typ.)
< 1 %***
< 5 % ***
Residual infrared unfiltered
<1%
< 10-3 mbar l s-1
SHG cavity leak rate
Warm-up time
Few minutes, depending on crystal temperature
Environment temperature
Operation: 15 .. 30°C (non-condensing), transport: 0 .. 40°C
Operating voltage
100 .. 120 V / 220 .. 240 V AC, 50 .. 60 Hz (auto detect)
Power consumption
Typ. < 120 W, max. 300 W typ.
< 150 W, max. 600 W
90 x 410 x 485 mm3
90 x 566.5 x 400 mm3
Single-stage 19“ rack DLC pro
Double-stage 19“ rack
(+ additional rack if required)
Size laser head (H x W x D)
Electronics
*Spectral coverage with gaps.
**Under stable laboratory conditions.
***Lower amplitude noise with Double-Piezo Lock option, values depend on frequency stability of master laser
DL-SHG pro
TA-SHG pro
1000
DL-FHG pro
TA-SHG pro
Power [mW]
100
10
1
0.1
200
250
300
350
400
450
500
550
600
650
700
750
800
Wavelength [nm]
Wavelength coverage of TOPTICA’s standard frequency-converted laser systems. Special systems
with wavelengths down to 190 nm and powers up to 20 W are available (please inquire).
www.toptica.com
47