TOPTICA Photonics AG - A passion for precision -

BoosTA pro

High-Power Tapered Laser Amplifier

    • Up to 3.5 W single mode output power, gain up to 20 dB 
    • Available wavelengths 660 nm .. 1495 nm 
    • Compact amplifier module with stand alone driver 
    • Maintains spectral properties of master oscillator 
    • Input and output fiber coupling available

    The BoosTA pro, TOPTICA’s new stand-alone optical amplifier, increases the output power of a DL pro or any other linearly polarized master laser by up to 20 dB (x100). Following TOPTICA’s well-established pro-technology, the TA chip is mounted in a compact unit with optimized heat management and beam-shaping optics. A compact, external power supply (DC HP) drives the amplifier head and allows effortless operation - even of current-hungry TA chips at wavelengths with lower gain. Researchers thus benefit from output power levels up to 3.5 W.

    The BoosTA pro head includes a high-bandwidth current modulation board, which – when used in a closed feedback loop – allows compensating power fluctuations of the master laser by adjusting the amplifier gain. The board also features a protective circuit to avoid the risk of electronic chip damage. The beam management of the seed laser can be greatly simplified by optional fiber input coupling. Other options are optical isolators and fiber output coupling. The BoosTA pro head has sufficient space for a 60 dB isolator to protect the TA chip from back reflections.

    • Specifications
      General Specification TOP-Seller (not configurable)
      SYST BoosTA pro 670 765 780 795 850
      Wavelength range (nm) 660 .. 1495 nm* 660 - 675 760 - 775 765 - 895 780 - 800 850 - 870
      Max. output power (W) 0.5 .. 3.5 W 0.5 2 3 3.5 3
      Beam quality M² < 1.5 (< 2 for some higher power chips) < 1.5 < 1.5 < 2 < 2 < 2
      Configuration Amplifier
      Master Laser External, not included
      Max. TA current [A] 7 (inquire for more)
      Typical tunability range 10 .. 50 nm
      Typical mode-hop-free tuning range depends on master laser
      Typical linewidth (5µs) depends on master laser
      ASE background depends on master laser
      Polarization Linear > 100 : 1
      Divergence < 1 mrad
      Beam height 50 ± 1 mm
      Optical isolators Input: none, Output: optional 30 or 60 dB
      Fiber coupling Input*** and Output: optional
      Fiber coupling efficiency**: min. (typ.) 50 % (60 %)**
      Control electronics DC HP
      Frequency modulation option -
      Intensity modulation option TA-mod included
      Dimensions laser head (H x W x D) 275 x 115 x 90 mm³
      Weight laser head 3.9 kg
      Dimensions control unit 200 x 105 x 85 mm³
      Weight control unit 2.3 kg
      Power supply 100 .. 120 V / 220 .. 240 V AC, 50 .. 60 Hz (auto detect)
      Power consumption typ. 40 W
      PC Interface -
      Environment temperature 15 - 30° C (operating) / 0 - 40° C (storage and transport)
      Environment humidity Non condensing
    • Additional Information
    • Options
      Optical Isolation Single Stage
      Isolators are used to protect the laser diode from back reflections. Fiber coupling with angle polished fibers (both ends) requires at least a single stage isolator.
      Optical Isolation Double Stage
      Double stage isolators are needed if reflections from the experiment into the laser are expected. Fiber coupling with non-angle polished fibers also requires a double stage isolator.
      TOPTICA's patented fiber coupler provides highest single-mode fiber coupling efficiencies, easy alignment and at the same time highest stability. TOPTICA additionally offers a wide range of single-mode and polarization maintaining fibers, including fiber-optic beam splitters. Optical isolation is mandatory for fiber coupled diode laser systems.
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    • Related Products
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