Laser Diode by Thorlabs Inc

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The FPV785P from Thorlabs is a 785 nm Wavelength-Stabilized Laser Diode is based on quantum well epitaxial layer growth and a highly reliable ridge waveguide structure with external volume-holographic-grating (VHG) feedback. This laser diode produces a wavelength-stabilized spectrum with a single-frequency narrow linewidth over the operating power range of approximately 30 to 50 mW. This single-frequency laser diode is housed in a butterfly package with an internal optical isolator, monitor diode, TEC and a thermistor that allows the laser to be temperature controlled. The output is coupled to 1.0 m of FC/APC-terminated PM780-HP fiber.

Product Specifications

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Product Details

  • Part Number
  • Manufacturer
    Thorlabs Inc
  • Description
    785 nm Grating Stabilized, Single-Frequency Laser Diode


  • Application
    Microscopy, Raman Spectroscopy

General Parameters

  • Technology
    Quantum Well
  • Operation Mode
    CW Laser
  • Wavelength
    784 to 786 nm
  • Output Power
    20 to 50 mW
  • Spectral Width (FWHM)
    15 MHz
  • Operating Voltage
    2.1 to 2.8 V
  • Operating Current
    410 mA
  • Reverse Voltage(PD)
    20 V
  • Reverse Current(LD)
    2 V
  • Threshold Current :
    80 to 150 mA
  • Monitor Current
    0.15 mA
  • Fiber Modes
    Polarization Maintaining
  • Polarization Extinction Ratio
    15 dB
  • Operating Current (CW)
    410 mA
  • Slope Efficiency
    0.25 W/A
  • Package Type
  • Package
    14-Pin Butterfly
  • Thermistor Resistance
    10 kOhms
  • Type
    Fiber-Coupled Laser Diode
  • Note
    PM780-HP Fiber, SMSR: 25 to 40 dB

Physical Properties

  • Fiber length
    1 m

Connections & Interface

  • Connector


  • Operating Temperature
    0 to 70 Degree C
  • Storage Temperature
    -10 to 70 Degree C

Technical Documents

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