• Quantum Quiz App

    Quantum Quiz is a fun app, developed by employees, partners and friends of TOPTICA Photonics. You can win nothing but knowledge and the joy of the game. You do not need to buy anything.

    There are 3 levels per game:

    Level 1 can typically be answered by people with a general interest in Optics/Physics/Science and a sense of humor.

    Level 2 can typically be answered by people who paid attention during their physics classes at university.

    Level 3 can typically be answered by experts in the field of quantum technologies.

    Currently there are 700+ questions in the library. If you want to suggest your own quantum-related question, please submit it via this web form or via „Submit a question“ in this app. Do not forget the three wrong answers, they are as important as the correct one.
    A reference in the comments section is welcome.

    The highscore table will be reset at the beginning of each month. This is also when we will add new questions to the library. The TOP 30 of each month´s highscore can be found here.

    Do you want details of how the quiz app works?
    Learn how to play.

    We hope you have a quantum of joy playing this quiz.

    Your TOPTICA team

  • ToptiCalc App


    Calculator for Laser Optics

    ToptiCalcTM is TOPTICA Photonics scientific calculator specially designed for use in optics laboratories. We dedicate this helpful calculator to our customers, physicists and engineers, people that work hard in order to make optics and lasers useful for science and industry. It is free and we hope it can help to make some of your calculations easier!

    You are a physicist reading a chemistry paper. Why do they always use wavenumbers instead of wavelengths...? ToptiCalcTM helps you in your everyday laboratory life by offering simple but pratical optics calculations like:

    • Spectral unit conversion
    • Calculating spot sizes for focussed Gaussian beams
    • Fabry-Perot calculations
    • Reflection and diffraction at plane glass surfaces
    • Pulse train calculations
    • Short pulse properties and chirp
    • Conversion between linear and decibel scale

    Special features of ToptiCalc™ (PC-version only):

    Mathematical expressions are entered via a simple intuitive syntaxSimply enter the calculation like you would write it down. ToptiCalcTM supports the operators + , - , * , / , ^ (power) and the predefined functions sin (x), cos (x), tan (x), arcsin (x), arccos (x), arctan (x), sqrt (x), exp (x),
    ln (x), log (x) and pi
    Dots AND commas are accepted as decimal separatorsDots AND commas are accepted as decimal separators
    A history list collects all entered expressions and the calculated resultsYou can always check whether you really entered the correct expression
    With a double click on the history list an old expression can be inserted into the current expressionYou can easily modify earlier calculations or use and combine earlier results for new calculations
    With a right-click selected parts or the complete history list can be transferred to the clipboardYou easily insert your calculations and results into any text
    Important fundamental constants are available in SI units (feature 'const SI')A convenient selection of fundamental constants saves frequent looking up in textbooks
    Spectroscopic constants are available in convenient and useful 'lab units' (feature 'const lab')Often the SI units are too awkward for real laboratory life. If you want to e.g. translate the optical path length (which you measured with your ruler in millimeters) into a temporal delay in picoseconds its much more convenient to have the speed of light directly in mm/ps.... Thus ToptiCalcTM provides some important fundamental constants in common alternative units
    Arbitrary functions and variables can be defined by the userYou can easily define your own frequently needed functions and constants, and save them to your harddisk.
    Do you often need to calculate an index of refraction of your glass for different wavelengths? Just define the relevant Sellmeier function. Or do you often need Planck's constant for translating frequencies into energies? Simply define a constant h.Pressing CTRL+X in the input line or or right-clicking in the history list provides a very easy and quick way to define a variable with the value of the current expression or any older calculation, respectively

    a desktop version

    Download a mobile version for Android

    Download a mobile version for iOS


  • DLC pro Software

    DLC pro Software


    DLC pro Software Update

    TOPICA provides software updates for the DLC pro about twice a year. These updates provide new features and bug fixes but are not installed automatically. To update your system please follow the update instructions.

    ReleaseDateNew SystemsNew FeaturesNotable Improvements and Bug Fixes
    2.207/2020FALC pro  
    2.106/2020TA pro AL,        
    MTA pro,
    MSHG pro
    autoPDH  Service report without PC connection
    2.012/2018TOPOWide scan modeCTL motor scan improved
    1.908/2018DLC Holo-Litho 405Lock wizardARC (analog remote control) for TC added
    1.804/2018TopWave 266
    PDH/DLC pro
     Better protection in case of exchange of laser heads
    1.701/2018MDL pro
    2nd DL
    Configuration manager
    Python support
    CTL scan-trigger problems fixed
    User interface for power stabilization easier to use
    1.604/2017DFB pro
    PS HP
    Air pressure compensation
    TA chips up to 10 A
    Routine for setting the lock-in phase automatically
    Added display elements to ease finding in-loop signals
    1.509/2016DL-FHG pro
    TA-FHG pro
    SUV option
    Service scriptsLocking without selected lock-point enabled
    SHG and FHG system display seed power correctly
    1.403/2016 Power stabilization
    FFT for all systems
    Labview example
    CTL: microsteps enable
    Limitations in signal routing lifted
    Scan and lock screen combined to ease operation
    Direct access of scaling mode
    1.306/2015DL-SHG pro
    TA-SHG pro
     Problem of freezing touch UI fixed
    Limits of FeedForward increased
    Correct display of TA pro power
    1.211/2014CTL Improved handling of touch UI events
    1.109/2014TA pro Cross talk between ARC of CC and PC modules removed
    1.002/2014DL pro  


    Remote operation the DLC pro is supported by:

    • TOPTICA Python Laser SDK (updated with every DLC pro software release) makes the command interface of the DLC pro (and other TOPTICA lasers) easily available in Python. The documentation of the command interface is provided by the DLC pro Command Reference, which is included in any DLC pro software package in the documentation folder. How to use the Python SDK is explained in the project homepage of the package
    • LabView example VIs for connecting to DLC pro (no technical support, also included in any DLC pro update) shows how a connection to a DLC pro is established in LabVIEW.


    Additional Product Information

  • DL pro Motorization Software

    DL pro Motorization Software

    Mot / DL pro Software Version 1.15b (31.8Mb): Free download of the latest MOT / DL pro software for DL pro equipped with the motorization option. The software consists of sample VIs for computerized motor control. Some VIs have been compiled to run without a LabView installation. The software is provided "as is" as an example for integrating the motor in an experiment or setup.

  • DigiLock Software

    DigiLock 110 Software

    Free software downloads of the latest DigiLock software.
    For evaluation purposes, the software can be installed and tested without a DigiLock module connected.

    To sign up for receiving notifications about new DigiLock software releases or to send bug reports or feature requests, please email to digilock [at]

  • Licences

    OSS Licenses

  • Teamviewer QuickJoin & QuickSupport

Brochures & Datasheets

  • Brochures

    FemtoFiber Lasers

    Femtosecond, Picosecond – All wavelengths, 48 pages, 6 MB
    TOPTICA offers several products: ultrafast fiber lasers based on Erbium (Er) and Ytterbium (Yb) like the FemtoFiber smart,  FemtoFiber pro, FemtoFiber ultra and FemtoFiber dichro series. All these systems are based on TOPTICA FemtoFiber technology.

    Tunable Diode Lasers

    UV, Visible, Infrared - Digital Control - Wavelength Stabilization, 52 pages, 7.9 MB
    TOPTICA's tunable, single-frequency lasers are available for individual wavelengths between 190 nm and 4000 nm, and deliver narrow-linewidth emission that is tunable – in some systems up to 120 nm wide without a single mode-hop.

    Terahertz Technologies

    Lasers for Terahertz Systems and Accessories, 32 pages, 5.5 MB
    TOPTICA provides complete systems and components for both time-domain and frequency-domain terahertz generation. Selected accessories – Schottky diodes and optomechanics – are available for both time-domain and frequency-domain systems.

    Frequency Combs

    Compact, robust, high end – and convenient, 16 pages, 4.4 MB
    Frequency combs are very precise tools which are used for applications that require highest accuracy and resolution when measuring  the frequency of light.  A frequency comb has an optical spectrum that consists of equidistant lines in the frequency domain.


    MIR Spectroscopy and Applications, 4 pages, 2.0 MB
    Widely Tunable High-Power Continuous-Wave OPO Laser System.

    iBeam smart Family

    Single-Mode Diode Lasers, 16 pages, 4 MB
    Colorful diode lasers for a Variety of applications – 375nm - 850nm: our ind. diode lasers combine first class diode technology and rock-solid opto-mechanical engineering, completed by convenient computer-control and intelligent protection measures. With cw or pulsed operation, TEM00 mode and a spectral linewidth of typically 0.5 nm.

    iChrome Family

    Fully Featured Multi-Color Laser Engines, 16 pages, 6.6 MB
    The iChrome family of multi-laser engines addresses the need for lasers with multiple colors in biophotonics (microscopy, cytometry, DNA sequencing etc.) and metrology (scatterometry, ellipsometry).


    Single-Frequency Diode Lasers, 6 pages, 3.9 MB
    The TopMode series sets records in terms of power, coherence and wavelength stability. The proprietary CoHerence-Advanced Regulation Method (CHARM) provides an active stabilization of the lasers’ coherence and ensures continuous single-frequency operation.

    Sodium Star 20/2

    High Power cw Tunable Guide Star Laser, 6 pages, 8.5 MB
    High-power guide star laser @ 589 nm designed for Adaptive Optics Control in Ground-based Telescopes. It is based on resonant frequency doubling of an infrared DFB diode laser with subsequent Raman fiber amplifier.

    Product overview

    TOPTICA at a glance: product overview, 12 pages, 2 MB
    The TOPTICA portfolio includes diode lasers, ultrafast fiber lasers, terahertz systems and frequency combs. OEM customers, scientists, and over a dozen Nobel laureates all acknowledge the world-class exceptional specifications of TOPTICA’s lasers, as well as their reliability and longevity.

  • Datasheets

    TeraFlash smart

    Ultrafast Time-Domain Terahertz Platform

    FemtoFiber ultra 920

    High-Power Ultrafast Laser

    Free Space Optical Isolators

    High Power Tunable Single and Dual Stage Performance

    DLC Holo-Litho 405

    Cost-efficient, single-frequency diode laser, 1 Watt @ 405 nm

    FemtoFiber vario 1030

    High Power Ultrafast Fiber Laser

    MDL pro

    Tunable ECDLs for rack integration

    TopWave 266

    Industrial Continous-Wave UV-Laser


    Single-Frequency High Power Diode Laser

    FemtoFiber smart 780

    Ultrafast Fiber Laser for Industrial Applications

  • Poster "Laser Absorption in Physics, Chemistry & Biology"

    Download a pdf file of the Poster
    Download a picture file of the Poster