Laser Diode by FrankFurt Laser Company

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The FRLD-638-350-FS-VBG-BTF from Frankfurt Laser Company is a Free-Space Narrow Linewidth Laser Diode that operates from 637.5 to 638.5 nm. This laser diode has a spectral width (FWHM) of 0.01 nm and delivers a CW output power of 350 mW. It requires a DC supply of 2.2 V and has a threshold current of 0.18 A. The laser diode is available in a 14-pin butterfly package with an integrated thermistor and is ideal for Raman spectroscopy, medical, spectrum analysis, and scientific research applications.

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Product Details

  • Part Number
  • Manufacturer
    FrankFurt Laser Company
  • Description
    Free Space Narrow Linewidth Laser Diode


  • Application
    Raman Spectroscopy, Medical, Spectrum Analysis, Scientific Research

General Parameters

  • Technology
    Volume Bragg Grating (VBG)
  • Wavelength
    638 nm
  • Output Power
    350 mW
  • Output Power
    350 mW
  • Spectral Width (FWHM)
    0.1 nm
  • Operating Voltage
    2.2 V
  • Operating Current
    0.7 A
  • Operating Current
    0.7 A
  • Threshold Current
    0.18 A
  • Laser Color
  • Slope Efficiency
    0.7 W/A
  • Package Type
  • Package
    Butterfly package
  • Lead Soldering Temperature
    250 Degree C
  • Relative Humidity
    75% (Operating), 90% (Storage)
  • Thermistor Resistance
    10 kOhms
  • Type
    Free Space Laser Diode
  • Note
    Current Drift: 0.05 nm/A, PD Current: 2000 µA, Lead Soldering Time: 10 s


  • Temperature Drift
    0.01 nm/°C
  • Operating Temperature
    10 to 30 Degree C (Case)
  • Storage Temperature
    -20 to 70 Degree C

Technical Documents

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