MTA pro

Modular Amplified Tunable Single-Mode Lasers for 19” rack integration

  • Up to two lasers in TA pro, BoosTA pro or DL/DFB pro configuration
  • Spectral coverage 369 .. 1770 nm with powers up to 2 W from PM fiber
  • Includes AutoAlign for coupling into tapered amplifier and output fibers
  • Low noise and drift, narrow linewidth
  • Digital control via DLC pro for best performance and convenience

The MTA pro combines up to two MTA TA pro amplified laser systems into a 19” sub-rack and seamlessly integrates into the T-RACK or other suitable 19” racks. The modular design also enables integration of MTA BoosTA pro amplifier only modules or DL/DFB pro laser modules. MTA pro integration of the latter may help to avoid an extra MDL pro and comes with additional features and options.

Like all building blocks of TOPTICA’s Laser Rack Systems, the MTA pro is designed to clear optical tables and to stow away lasers into a 19" form factor. It is ideally suited for integration into TOPTICA Laser Rack Systems that allow researchers to focus on their experiment rather than on their laser system.

When operated in TOPTICA’s T-RACK, the MTA pro has the same optical specifications as a fiber-coupled TA pro system. On top of that, it always includes AutoAlign, a fully-automated push-button coupling optimization into the tapered amplifier and the optical output fibers. Moreover, MTA pro supports output power stabilization.

The MTA pro modular laser unit features a full-extension pull-out mechanism and dynamic cable management, both ensuring easy access to the laser modules. Moreover, it offers passive vibration isolation decoupling the lasers from the environment. The unit consumes a total of 4 Rack Units (RU) in height, including an extra 1 RU blanking front panel recommended for thermal isolation between laser units. Optical output is fiber-coupled allowing for flexible laser light delivery wherever required.

The MTA pro laser modules are controlled with TOPTICA’s DLC pro. Its digital architecture enables low-noise laser operation, intelligent locking functions and remote control via Ethernet.


  • Specification

    DLC MTA pro
    modular laser unit
    Includes TA pro AL laser head in a passively isolated slidable drawer for T-RACK
    Integrated modules Up to 2 modules of type MTA TA pro, MTA BoosTA pro or MTA DL pro (HP/DFB)
    Dimensions laser head 19" width, 3 U height (=133.4 mm), requires 800 mm deep cabinet for complete MTA (2 modules)
    Weight laser head < 30

    MTA module MTA TA pro MTA BoosTA pro MTA DL pro (HP) MTA DFB pro
    Wavelength range [nm] 660 - 1495* 369 .. 1770* 633 .. 1770*
    Max Fiber output power [mW] Up to 2000 6 .. 160 1 .. 80
    Typical tuning range [nm] 10 .. 50 2 .. 6
    Mode-hop-free tuning [GHz] 20 - 50 depends on seed laser typ. ≥ 20 Up to 1400
    Typical Linewidth (typ., 5 µs) 10 .. 500 kHz (DL pro master),
    0.2 .. 4 MHz (DFB/DBR master)
    depends on seed laser 10 .. 500 kHz (DL pro master) 0.2 .. 4 MHz

    Polarization Linear > 100 : 1
    ASE background (0.05 nm) typ. < -40 dB depends on seed laser typ. < -40 dB
    Optical isolators Internal and output isolators included where required
    Fiber coupling Fiber coupling included for all input and output beams
    Output fiber coupling efficiency min. 50 %, typ. 60 % min. 55 %, typ. 65 %**
    Monitor photo diodes Included for AutoAlign, monitoring and power stabilization where applicable
    AutoAlign Included for coupling into amplifier chip and output fibers
    Frequency modulation Mod AC and Mod DC N/A Mod AC and Mod DC
    Intensity modulation TA-Mod for amplifier included N/A
    Control electronics DLC pro (digital)
    Maximum TA current 5 A (with DLC pro TA), 10 A (with DLC pro TA HP) N/A
    User Interface Multi-Touch, knob and total remote control
    Locking options DLC pro Lock, FALC pro, PDH/DLC pro, modules in DLC ext
    Dimensions control unit 154 x 450 x 348 mm³ (H x W x D)
    Weight control unit 8.5 kg
    Power supply 100 .. 120 V / 220 .. 240 V AC, 50 .. 60 Hz (auto detect)
    Power consumption typ. 70 W
    Environment temperature 15 - 30° C (operating), 0 - 40° C (storage and transport)
    Cooling Water cooling required (e.g. DLC Chiller) Active cooling not required
    Environment humidity Non condensing

     *Spectral coverage with gaps
    **Efficiencies are possibly lower with strong ellipticity or short wavelengths
    Specifications are subject to change without further notice

  • Options

    • Narrow linewidth and motorization option for many DL pro type (seed) lasers.
    • Lock Option for DLC pro: Software license that enables a number of features on a specific DLC pro. These allow to control the frequency of a laser for example by using a saturated absorption spectroscopy setup with a reference cell.
    • PDH/DLC pro and FALC pro locking modules for DLC pro: high bandwidth locking to allow active linewidth narrowing and phase locking.

  • Applications
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  • Literature

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