Frequency Combs

Compact, robust, high-end ... and convenient

Laser ReferenceHigh-resolution Spectroscopy

Optical Clocks



Microwave GenerationDual-comb SpectroscopyDirect Frequency Comb Spectroscopy
Interferometry
Transportable AMO Systems
Quantum Computing

1

Contents
Introduction

3

All components overview

4

DFC CORE +6

Difference Frequency Comb (DFC)
Compact, robust, high-end ... and convenient

Compact high-performance frequency comb
DFC EXT

10

Wavelength conversion from 1560 nm to 420 - 2000 nm
DFC BC / DFC BCF / DFC MD

11

Flexible beat detection units
FALC & PFD

12

Locking electronics: Push-button phase-frequency lock
TOPAS DFC

13

Convenient user interface (GUI)
Complete DFC system

For strontium lattice clock experiment

The patented CERO (“zero- fCEO”) tech­(DFC) is a compact, robust, high-end

nology uses difference frequency gener-

solution featuring turn-key operation ination for a passive, all-optical phase-locka 19 inch format. All driving and locking

of fCEO. This simple and reliable technology

electronics for RF references are integrat-

offers intrinsic stability and an effective fCEO

· Optical Clocks

ed into the robust 19-inch housing of thelocking bandwidth as high as the repetition· Microwave Generation

Erbium fiber based frequency comb DFC

rate of the frequency comb. Advantages

CORE +. It features 4 or optionally 8 in-of the CERO technology are ultra-low fCEO

trinsically offset-free outputs at 1560 nm

phase noise and a narrow free runningwhich can be equipped with wavelength

linewidth.

15

Applications· Laser Reference· High-resolution Spectroscopy· Dual-comb Spectroscopy· Direct Frequency Comb
Spectroscopy· Interferometry

extension modules (DFC EXT) convertingthe comb light to any wavelength between

The DFC profits from TOPTICA’s 20· Transportable AMO Systems

420 nm and 2000 nm.

years of experience building high-quality· Quantum Computing

14

Buy a stable, optical frequency
Example scheme of complete DFC System

TOPTICA’s Difference Frequency Comb

scientific and industry-grade lasers. It can
The convenient user interface offers

be combined with any TOPTICA’s worldtime-saving remote control of the frequency

famous cw-lasers and locking electronics

comb laser system and all its accessories

to become a complete laser system readylike counter, spectrum analyzer or wave-

to use from day one after installation.

length meter from a single interface. It features an automatic lock to RF references,

With its intrinsic stability and ease of use

remote locking to optical references andthe DFC is the number one choice forremote locking of TOPTICA cw-lasers toanyone looking for high-end performancethe DFC.

combined with a high level of robustness.

The products in this data sheet are designed and licensed using the following patents or pending patent applications: DE102004022037, DE 10 2004 022 03, US 9,036,670, DE 10 2013 009 264.7, DE
10 2010 048 576.4, US 8,811,435, DE 10 2015 117 828.1, US 15/295,414. The DFC product also incorporates a license of US patent US 6,724,788.

2

3

Difference Frequency Comb (DFC)
All components overview

02

01

05
06

03
04

01 DFC CORE +02 DFC EXT

04 DFC BC

06 DLC DL pro· Frequency comb with CERO technology· Housing for up to 3 wavelength· Beam combiner

Or any TOPTICA Laser· 4 offset-free outputs @ 1560 nm

extensions· Adjustable split ratio(420 - 2000 nm)· All electronics included· Outputs between 420 - 2000 nm· Pure cw-light output· Adjustable power ratio

03 DFC MD

07
07 Complete DFC Systems· Complete stabilized laser systems· Monochromatic detector

05 Locking electronics· Rack mounted or table top· Grating-based adjustable filter· FALC - Fast PID controller· Including DFC CORE +, DFC EXT,

· Low-noise photodetector· PFD - Phase-Frequency Detector

DFC BC/MD, FALC & PFD, cw-laser,· DLC EXT housing

HighFinesse wavelength meter,counter, spectrum analyzer

45DFC CORE +Compact high-performance frequency comb

DANGER – VISIBLE AND INVISIBLE LASER RADIATIONAVOID EYE OR SKIN EXPOSURE TO DIRECT OR
SCATTERED RADIATION
CLASS 4 LASER PRODUCT, EN60825-1:2014

CERO PRINCIPLE: fCEO- stabilization by Difference Frequency Generation (DFG)

CERO: Inherently noise-free
TOPTICA’s unique difference frequency
comb DFC implements the completely
passive CERO (“zero-fCEO“) technology,
which inherently stabilizes fCEO and thecarrier envelope phase.
The DFC is the first commercial system
based on this superior patented technology(patent number: DE102004022037). The
fiber-based comb combines the convenience and robustness of fiber lasers with
low-noise performance.
The CERO principle is described in thefollowing sketch.

Low-noise oscillator

frep Controller
Spectral Power [dB]

Oscillator

Low-noise Er-fiber oscillator@ 1560 nm

-10
-20
-30
-40
-50
-60
1500

1540
1580
Wavelength [nm]1620

The DFC CORE + is a robust, 19 inch compatible optical frequency comb. It is the core system for applications like optical clocks,
micro­wave generation or phase-locking of cw-lasers and can be equipped with additional options (page 14) and wavelength extensions(page 10). Its unique fCEO-stabilization is based on Difference Frequency Generation (DFG) and comes with many advantages such as
high robustness and ultra-low phase noise. The DFC CORE + features an outstanding stability and accuracy which is suitable for use
Supercontinuum spanning
193 THz (≙ 1560 nm).

into its design, it’s a TOPTICA laser.

· Comb spacing: 200 MHz· Stability: 8 · 10-18 in 1 s*, 5 · 10-20 in 1000 s*· Accuracy: 1 · 10-18 for τ > 100 s*· Integrated phase noise fCEO: < 65 mrad [70 mHz - 20 MHz]
· Linewidth: < 1 Hz (locked to optical reference)		
20 kHz free running· Compact dimension: 133 x 450 x 633 mm³, incl. electronics· Turn-key, full remote control* Phase-locked to optical reference6· Effective fCEO-locking bandwidth= 200 MHz (repetition rate)

Blue shaded frequencies haveidentical fCEO.

HNLF

-20

193 THz ≈ 1550 nm

-30
-40
-50

Wavelength [nm]

850

1870

fm
fl
= (m frep + fCEO) - (l frep + fCEO)· fn = nfrep, perfect for use
with optical reference
Puppe et al., Opt. Lett. 41, 8 (2016)(c/850 nm + fCEO) - (c/1870 nm + fCEO) ≈ c/1560 nm· Narrow free running linewidth· Intrinsically stable· Simple and reliable· Passive, all-optical phase-lock· DFG between blue shaded frequencies
in nonlinear crystal· Resulting comb @ 1560 nm is:
fCEO stabilized, CEP stabilized· fCEO is fixed to zero· fCEO and frep are completely decoupled· New comb equation: fn= fCEO + n · frep

Difference
Frequency
Generation
Amp

Offset-free comb
Spectral Power [dB]

Outstanding specifications

Advantages of fCEO-stabilization byDifference Frequency Generation (DFG)

Amp

Spectral Power [dBm]

HNLF

with the best optical clocks. More than 20 years of engineering experience building high-quality scientific and industry-grade lasers went

-20
-25
-30

fn=n frep

-35
-40
1400

1450

1500
1550
Wavelength [nm]

1600

1650

7

DFC CORE +Compact high-performance frequency comb

DANGER – VISIBLE AND INVISIBLE LASER RADIATIONAVOID EYE OR SKIN EXPOSURE TO DIRECT OR
SCATTERED RADIATION
CLASS 4 LASER PRODUCT, EN60825-1:2014

Specifications

DFC CORE +Center wavelength

1560 nm (other wavelengths see page 10)

Comb spacing

200 or 80 MHz

Laser outputs

4 or 8, fiber coupled, polarization maintaining, FC/APC

Bandwidth> 20 nm, each output

Power> 10 mW, each output< 40 mrad [100 Hz - 2 MHz], < 65 mrad [70 mHz - 20 MHz]

Integrated phase noise fCEO
Linewidth
Loop bandwidth frep lock

Compact

RobustFully self-referenced comb including electronics –And it stays in lock … !

Rack-mount ready48 hours in the life of a DFC

Stability
Accuracy> 400 kHz (typ. 450 kHz)*

10 kHz, optimal with DFC RF

8 · 10-18 in 1s *, 5 · 10-20 in 1000 s*

1 · 10-13 in 1 s**

1 · 10-18

for τ > 100 s*

Bandwidth piezo frep
Reference

10-15
Fractional Frequency Instability< 1 Hz *Residual fractional frequency ratio difference = 9.4 · 10-22

Reference input

10

-16

1 · 10-14 for τ > 100 s **> 50 kHz

Optical reference*** or DFC RF***, Low-noise oven-controlled quartz (OCXO)· 800 MHz for RF reference· 10 MHz with DFC RF· High bandwidth Imod (DC - 10 MHz) for optical reference

10-17

Dimensions (H x W x D)

133 x 450 x 633 mm³, incl. electronics

10-18

Cooling requirements

Air cooled

10-19
10-20
10-21

10

10

0

10
10
Averaging time τ [s]

1

2

3

10

4

Power consumption< 110 W

Operating temperature

21 ± 4 °C

Weight< 32 kgPower supply

10

5

Mains connection: 100 .. 240 V~, 50/60 Hz, 4.0 A, Power adaptor output: 220 W, 24 V/9.2 A

Control computer

High-end

Convenient

Stability transfer at the 10-21 level

Control everything from a single window

Laptop, Windows 10, English* Phase-locked to optical reference, ** Phase-locked to RF reference, *** not included

Benkler et al., Optics Express [27], 36886 (2019)

DFC CORE +DFC CORE + includes
DFC CORE+DFC CORE+
Difference Frequency Comb

Difference Frequency Comb

I PumpEr³ Fiber
Oscillator

Bandwidth> 400 kHz

Piezo

Er³ Amp

DLC EXTPFD

I PumpEr³ Fiber· Robust aluminum
housing,
19 inch format,
Piezo

Beat signal In
FALC

Oscillator

vibration damped optical Temp
units

Temp
frep stab.
unit RF· Laser head based on CERO technology

800 MHz In

f stab.
· Driving and RF locking electronics
included in 19 inch housing
800 MHz In
unit RFrep

Er³ Amp· Low-noise all PM-fiber oscillator

Difference
Frequency
Generation
Er³ Amp

DFC SCNIR 922 nm

Super
Continuum

Super
Amp
· Erbium-doped
fiber amplifier + HNLF for supercontinuumContinuum

generation Difference
Frequency
Generation· DFG unit with CERO technology
Er³ Amp

HNLF· Erbium-doped fiber distribution amplifier· 4 or optionally 8 offset-free outputs @ 1560 nm

89DFC EXT
Wavelength conversion from 1560 nm to 420 - 2000 nm

DFC BC / DFC BCF / DFC MD
Flexible beat detection units

Key Features· Modular extensions· For use with DFC CORE +· Independent remote control ofdifferent extensions· Up to three extensions per DFC EXT· Custom extensions and beat detectionin DFC EXT housing, e.g. single branchdual wavelength

Model

Description

DFC EXT

Housing for Wavelength Extensions

DFC IR

Centered @ 1560 nm, bandwidth > 80 nm, typ. 100 nm

DFC NIR

Centered @ 780 nm, bandwidth > 35 nm, typ. 40 nm

DFC DVIS*

Wavelength range 420 (frep = 80 MHz), 450 (frep = 200 MHz) - 860 nm, bandwidth typ. 5 nm @ 698 nm, typ. 1 nm @ 420 nm

DFC SCNIR*

Wavelength range 840 nm (frep = 80 MHz), 860 nm (frep = 200 MHz) - 980 nm, bandwidth > 50 nm, typ. 100 nm @ 935 nm

DFC SCIR*

Wavelength range 980 - 2000, bandwidth > 150 nm

Amp
Amp Amp

Amp
Amp Amp

HNLF
HNLFHNLFSHGSHG SHG

Amp
Amp Amp

DFC
DFC
DVIS
DFC
DVISDVIS
DFC
DFC
DVIS
DFC
DVISDVIS
DFC
DFC
DVIS
DFC
DVISDVIS
Amp Amp
Amp

Amp Amp
Amp

Amp Amp
Amp

HNLF
HNLFHNLF

HNLFHNLF
HNLF

HNLFHNLF
HNLF

HNLFHNLF
HNLF

SHG
SHG SHGSHG SHGSHG

SHG SHGSHG

SHG SHG
SHG

DFC
DFC
IR DFCIR IRDFCDFC
NIRDFCNIR NIR
DFC
DFC
DVIS
DFC
DVISDVIS
Amp
Amp Amp

Amp
Amp Amp

HNLF
HNLFHNLF

Amp
Amp Amp

HNLF
HNLFHNLF

DFC
DFC
EXT
DFC
EXT EXT
813813nm813
nm nm689689
nm689
nm nm689689
nm689
nm nm

DFC
DFC
EXT
DFC
EXT EXT
1560
1560
nm
1560
nm nm
922922nm922
nm nm679679
nm679
nm nm

DFC
DFC
EXT
DFC
EXT EXT

DFC
DFC
EXT
DFC
EXT EXT

DFC
DFC
EXT
DFC
EXT EXT

Wavelength
Wavelength
Extension
Wavelength
Extension Extension

Wavelength
Wavelength
Extension
Wavelength
Extension Extension

Wavelength
Wavelength
Extension
Wavelength
Extension Extension

DFC EXT with DFC SNIR, DFC NIR
and DFC DVIS

Wavelength
Wavelength
Extension
Wavelength
Extension Extension

DFC EXT with 3 DFC DVISDFC MD· DFC + cw-laser beam combiner· DFC + cw-laser fiber beam combiner· Free-space optics, fiber FC/APC fiber
coupled· Available wavelengths 980 nm,
1030 nm, 1300 nm, 1550 nm(other wavelengths on request)· Grating based tunable filter, 10 GHz
bandwidth, < 1 GHz resolution· Available from 420 to 2000 nm· Low-noise photo diode forbeat detection· Fixed power ratio comb vs. cw· Available from 420 to 2000 nm· Comb-free cw output for experiment· To be used in combination with DFC MD
for beat detection· RF output suitable as direct input for
TOPTICA locking electroncis· Adjustable split ratio for cw laser· Dimensions (H x W x D): 23 x 90 x 200 mm3· Stand-alone narrow band frequency filter· Wavelength range > 50 nm(depends on central wavelength)· Wavelength range 50 nm(depends on central wavelength)· To be used in combination with DFC MD
for beat detection (SM/PM fiber included)· Dimensions (H x W x D): 64 x 60 x 120 mm3· Dimensions (H x W x D): 49 x 100 x 100 mm3

SHG
SHG SHG

DFC
DFC
EXT
DFC
EXT EXT
866866nm866
nm nm794794
nm794
nm nm729729
nm729
nm nm
Wavelength
Wavelength
Extension
Wavelength
Extension Extension

DFC BCF· Adjustable power ratio comb vs. cw

Other extensions on request, * tunable (patent protected, US 8284808B2), please inquire for more details

DFC
DFC DFC DFCDFCNIRDFCNIR NIR
DFC
DFC
DVIS
DFC
DVISDVIS
SCNIR
SCNIR
SCNIR

DFC BC

Wavelength
Wavelength
Extension
Wavelength
Extension Extension

DFC EXT with DFC IR, DFC NIR
and DFC DVIS

Designed for use with DFC and DL pro.
10

11

Locking Electronics: FALC & PFD
Push-button phase-frequency lock

TOPAS DFC
Convenient user interface (GUI)Key Features

Key Features· Robust phase and frequency lock· Central GUI for all DFC modules· Up to 45 MHz bandwidth· One interface for all system configurations· Remote control and locking· Remote control· Convenient software interface
integrated into DFC GUI (TOPAS DFC)

· Remote locking· Beat monitoring with cw lock status· Tunable RF source for offset phasefrequency lock

· Frequency measurement of cw-laser· 10 MHz reference input· Automatic data acquisition and data
analysis· Beat signal conditioning for beatdetection and frequency counting· For up to 8 lasers simultaneously

Description
Recommended for lock of DL pro to DFC
Recommended for lock of DFC to opt. reference
Task

PFD

FALC110DLC pro Lock

DFC CORE +internal Lock

Phase Frequency
Detector

Fast Analog PID

All-digital PID

All-digital PID







System components

Error signal generation

High bandwidth
phase-lockSlow feedback to
DLC pro laser

Slow feedback to DFC≈ 45 MHz≈ 30 kHz≈ 30 kHz

Max. bandwidth

via PFD



Rack compatibility









Stand-alone

optional software
license for DLC pro

included in any
DFC CORE +Power supply

DLC Ext

DLC Ext

131 x 184 x 286 mm³

Remote control with DLC pro

DLC DL pro to DFC· PFD switches fast output of FALCThe DFC locking electronics consisting of the· DLC pro switches integrator

Wavelength Extension

Phase Frequency Detector (PFD) and FALC
110 provides high-end phase frequency
locking for comb applications. The PFD RF
input is designed for use with the RF output
signal of the DFC MD. The error signal gen-

DFC BCDFC MDRF in

mon. out

Lock on/off

Phase out

DFC Scope
RF Analyzer

FALC

DLC DL pro

which modulates the laser diode current. A

DL pro piezo (Fine In) with the all-digital PID

3.1

3.2

4.1

4.2

DFC CORE +FALC & PFD
DFC SCOPEDFC COUNT
WS8-30DFC CORE +FALC & PFD
DFC SCOPEDFC COUNTDFC CORE +FALC & PFD
DFC SCOPEDFC COUNT
WS8-30DFC CORE +FALC & PFD
DFC SCOPEDFC COUNTDLC DL pro
FALC & PFD

DFC CORE +FALC & PFD
DFC SCOPEDFC COUNT
WS8-30DLC DL pro
FALC & PFD











Software function
Automatic RF lock







Remote optical lock















Lock status















Monitor beat FFT













Count beat frequency



















Calculate laser frequency

*



*



*



Frequency trace

*



*



*



Automatic dataacquisistion













Allan deviation

















PFD

FALC is passed through the PFD to allow for

close the slow feedback loop acting on the

DFC CORE + DFC CORE + DFC CORE +FALC & PFD FALC & PFD
DFC SCOPEDFC COUNT

2.2* Comb Tooth # needs to be set manually

Difference Frequency Comb

FALC 110 regulator. The main output of thecopy of the error signal (mon. out) is used to

2.1

Remote lock cw-laser

DLC EXTDFC CORE+

erated by the PFD is fed to the input of theremote switching of the fast feedback loop

1.1

Calculate comb tooth #Example: Phase frequency lock of

DFC EXT

1.0



Remote control

Dimensions PFD, FALC110, DLC EXT

System version

Piezo

DC MOD

PC

Fine In 1

main

invertmon

One interface
for all system
configurations

DFC CORE +@ 1560 nm

DFC CORE +DFC EXT
420 - 2000 nm

DFC CORE +DFC EXTDFC BC /DFC MDCOMPLETESYSTEMof the DLC pro.
12

13

Complete DFC Systems
Buy a stable, optical frequency

Example scheme of complete DFC System
For strontium lattice clock experiment

DFC CORE+
Difference Frequency Comb

I PumpEr³ Fiber
Oscillator

Piezo
Temp
frep stab.
unit RFRF Input
800 MHzEr³ Amp

DFC SCNIR 922 nm

Super
Continuum
Difference
Frequency
Generation
Er³ Amp· All from one single source

HNLF

the DFC CORE +, any desired wavelength ex-

now available from one source.
with shorter wavelengths can be stabilized
The complete laser system is controlled

2000 nm can be locked to the DFC, lasers

from a single GUI.

Wavelength Extension

Amp

HNLF
SHG

698 nmwith a wavelength between 420 nm and

DFC EXT SHG

689 nmusing the fundamental of their SHG unit.

HNLF

813 nmAny of TOPTICA’s tunable diode lasers

Amp

DFC DVIS

tension, beat units, stabilization electronics,
wavelength meters, counters, and lasers are· Controlled from a single GUI

DFC GPSAmp

DFC DVIS· Easy to use

10 MHzComplete stabilized laser systems including
DFC DVIS· Designed to work together

DFC RF

Amp

HNLF
SHG

DFC EXT
Wavelength Extension

Frequency Comb

Wavelength extension*

Reference

Beat units

Locking electronics

Accessories

Rack integration

ModuleDescription

DFC CORE +Difference Frequency Comb, 4 offset-free outputs @ 1560 nm, > 10 mW, > 20 nm

DFC IR

Centered @ 1560 nm, bandwidth > 80 nm, typ. 100 nm

DFC NIR

Centered @ 780 nm, bandwidth > 35 nm, typ. 40 nm

PFD
FALC

Wavelength range 420 (frep = 80 MHz), 450 (frep = 200 MHz) - 860 nm,
DFC DVIS**
bandwidth typ. 5 nm @ 698 nm, typ. 1 nm @ 420 nm
Wavelength range 840 nm (frep = 80 MHz), 860 nm (frep = 200 MHz) - 980 nm,
DFC SCNIR**
bandwidth > 50 nm, typ. 100 nm @ 935 nm

DFC BCDFC MDDLC
TA pro813 nmDLC EXTPFDFALC*DFC COUNT &*DFC COUNT &DFC SCOPEDFC SCOPEDFC SCIR**

Wavelength range 980 - 2000, bandwidth > 150 nm

DFC RF

Low-noise oven-controlled quartz, output: 800 MHz, input: 10 MHz

DFC GPS

GPS frequency reference, output: 10 MHz, stability: 1.3 · 10-12 @ 1s, 1 · 10-13 @ 40000 s

DFC BCBeam combiner for DFC and cw-laser, fiber coupled

DFC BCF

Fiber beam combiner for DFC and cw-laser, 980 nm, 1030 nm, 1300 nm, 1550 nm

DFC MD

Monochromatic detector unit, fiber coupled, use with DFC BC / DFC BCF

FALC

Fast analog 2-channel PID

PFD

Phase frequency detector, enables remote locking with FALCDLC EXT

Housing and power supply for FALC and PFD

DFC SCOPE

Digital oscilloscope with spectrum analyzer (FFT), for convenient beat monitoring from softwareand simultaneously from multiple

DFC COUNT

4 channel counter

instances of the central software.

WS8-30

HighFinesse wavelength meter, for convenient determination of comb line number

Using the PFD for error signal gen-

MDFC

Rack integration of any DFC component and complete comb systems (e.g. MDFC CORE +)eration enables remote locking* other extensions on request, ** tunable (patent protected, US 8284808B2), please inquire for more details

14

DLC EXTOne DFC CORE + seeds mutiple
wavelength extensions for a strontium lattice clock experiment.

DFC BCDFC MDcan be controlled independently

with FALC.

PFD

DLC
DL pro689 nmDLC
DL pro707 nmDFC BCDFC MDHigh
FinesseCavity

PFD
FALC

FALC

DLC
DL pro698 nmLocked to Wavemeter

DLC EXT*DFC COUNT &DFC SCOPEDFC BCDFC MDDLC
TA-SHGpro
461 nm

PCS x 8Locked to Wavemeter

Locked to Wavemeter

High Finesse
Wavemeter

Sharing one comb infrastructure
becomes easy as each output

DLC EXTDLC
DL pro679 nmOffset beat counting

Beat monitoring:<= 3 cw laser<= 4 cw laser

*DFC
COUNT

*DFC
SCOPE

FTF from DFC SCOPE
429228004229873 Hz

15

TOPTICA Worldwide

FranceOpton Laser International
www.optonlaser.com

India
Simco Global Technology& Systems Ltd.
www.simco-groups.com

IsraelLahat Technologies Ltd.
www.lahat.com

RussiaEuroLase Ltd.
www.eurolase.ru

Singapore & Malaysia & Thailand
Precision Technologies Pte Ltd
www.pretech.com.sg

South Korea
JINSUNG INSTRUMENTS, INC.
www.jinsunginst.com

TaiwanLuxton Inc.
www.luxton.com.tw

TOPTICA Photonics Inc
5847 County Road 41
Farmington, NY 14425
U.S.A. & Canada & Mexico
Phone: +1 585 657 6663
Fax:
+1 877 277 9897
sales@toptica-usa.com
www.toptica.com

TOPTICA Photonics, K.K.
Asahi-seimei Bldg. 2F
1-14-1 Fuchu-cho, Fuchu-shi
Tokyo 183-0055
Japan
Phone: +81 42 306 9906
Fax:
+81 42 306 9907
sales@toptica-japan.com
www.toptica.co.jp

TOPTICA Photonics (China) Co., Ltd.
Room 1837, Bund Centre
222 East YanAn Rd
Huangpu District Shanghai, 200333
China
Phone: +86 21 619 335 09
toptica@toptica-china.com
www.toptica-china.com

BR-DFC-2020-01

Australia & New Zealand
Lastek Pty. Ltd.
www.lastek.com.au

United Kingdom & Ireland
TOPTICA Photonics UK
www.toptica.com

TOPTICA Photonics AG
Lochhamer Schlag 19
D - 82166 Graefelfing / M unich
Germany
Phone: +49 89 85837 0
Fax:+49 89 85837 200
sales@toptica.com
www.toptica.com

16