L637G1

Laser Diode by Thorlabs Inc | www.thorlabs.com

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The L637G1 from Thorlabs is a 637 nm GaAs laser diode that provides an output power of 1.2 W. This compact light source suited for a variety of applications and comes in a Ø9 mm TO package with a G pin configuration. The leads on this diode have a larger 0.6 mm diameter than the typical 0.45 mm diameter for a Ø9 mm package. This makes it incompatible with mounts and sockets that are designed to fit a standard Ø9 mm TO-can package. This laser diode emits high-intensity visible light which can be hazardous to the human eye. Products which incorporate these devices have to follow the safety precautions found in IEC 60825-1 “Safety of laser products”. A socket is included with the purchase of the product to assist with soldering.

 Product Specifications

    Product Details

    • Part Number :
      L637G1
    • Manufacturer :
      Thorlabs Inc
    • Description :
      1.2W, 637 nm Multi-Mode GaAs Laser Diode

    General Parameters

    • Configuration :
      Multi-Emitter
    • Chip Technology :
      GaAs
    • Operation Mode :
      CW Lasers
    • Wavelength :
      637 nm
    • Output Power :
      1.2 W
    • Operating Voltage :
      2.5 to 2.9 V
    • Operating Current :
      1.1 to 1.5 A
    • Emitter Width :
      80 µm
    • Reverse Voltage :
      2 V
    • Threshold Current :
      350 to 450 mA
    • Beam Divergence Parallel :
      10 Degree
    • Beam Divergence Perpendicular :
      32 Degree
    • Laser Color :
      Red
    • Polarization Extinction Ratio :
      18 dB
    • Slope Efficiency :
      1.6 W/A
    • Package Type :
      TO-Can
    • Package :
      Ø9 mm TO Package
    • Transverse Mode :
      Multi Mode
    • Type :
      Free Space Laser Diode

    Temperature

    • Operating Temperature :
      -10 to 45 Degree C
    • Storage Temperature :
      -40 to 85 Degree C

    Technical Documents

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