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685nm Laser Diode, 20mW, Polarization Maintaining, PM Fiber-Coupled Coaxial Packaged Laser Diode

$575.00  
sku / item#: LD4B-685-FP-20-COAXB-3-SMP04-FA-CW-0.5
ships: Request a Quote for Current Ship Date

Key Features
  • Wavelength: 685 nm
  • Optical Power: up to 20 mW in CW
  • Polarization Maintaining Fiber with FC/APC Connector (FC/PC available)
  • Sold and Supported by LaserDiodeSource.com, a division of Laser Lab Source
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MODEL LD4B-685-FP-20-COAXB-3-SMP04-FA-CW-0.5
PRICE $575.00
ELECTRICAL-OPTICAL CHARACTERISTICS (Typcial @ T = 25 °C)
  • Wavelength: 685 nm
  • Optical Output Power: 20 mW
  • Spectral width: 0.3 nm
  • Polarization Extinction Ratio: PER 20 dB CW, (Optional SMP04 Fiber)
Electrical Specifications
  • Threshold current: 60 mA
  • Operating current: 120 mA
  • Operating voltage: 3.0 V
  • Slope efficiency: 0.27 mW/mA
  • Monitoring Output Current (PD): 0.5 mA
Output Fiber Specifications
  • Connector: FC/APC (FC/PC available)
  • PM Fiber
  • Other Fiber and Connector Types Available; Inquire

Product Overview:

685nm, 20mW FP Polarization Maintaining Fiber Coupled Laser Diode

LD4B-685-FP-20-COAXB-3-SMP04-FA-CW-0.5 is an InGaAlP quantum well laser diode with integrated photodiode, coupled to an optical fiber and packaged into a hermetic TO-case. This compact coaxial laser is mounted in a double-sided bracket to facilitate mounting and heat-sinking.
    • Wavelength: 685 nm
    • Cavity type: Fabry-Perot
    • Optical power: up to 20 mW in CW mode
    • Package type: compact coaxial with double-sided bracket
    • Built-in monitor photodiode

    Proper Handling and Operation of Diode Lasers

    Diode lasers are highly susceptible to damage from ESD and from temperatures exceeding their specified safe operating range. The user is advised to use care and proper ESD safety practices when handling them to avoid damage to the laser. A properly rated low noise current source, a low thermal resistance mount and a temperature controller should be used for optimal device performance and reliability.

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