Laser Diode Fiber Light Source

Laser Diode Fiber Light Source
  • Unit price per 


Ordering Code:
  • Each channel has a BNC input connector for up to 10 kHz TTL/analog modulation of the driving current and a BNC output connector for monitoring the driving current or for synchronization with other devices. Its laser safety features include a rear panel interlock connector, a master key switch and a white LED illuminated control knobs indicating laser diode operation. Also, each FC optical connector has a metal dust cap that acts as protective mechanical shutter. Unlike most commercial laser diode drivers, our linear driving electronics eliminates leakage current to get no light output for zero set current. That means no residual light exits from the laser diode when the driving current is set to zero. This feature is important for optogenetics experiments. The available wavelengths and fiber-coupled power values are given in the table below. For multichannel models, any wavelength combination is available.

    The LDFLS can be controlled using the Doric Neuroscience Studio, allowing more complex forms of light source control than through standalone use.

  • Optical Fiber
    Multimode 50 μm
    Optical Fiber Connector FC/APC
    Power stability < 1% over 1 hour
    Operating Modes - OFF
    - Continuous
    - External TTL
    - External Analog
    - Computer (USB)
    TTL Modulation
    HI > 2.8 V
    LOW < 2.3 V
    Analog Modulation 0 - 5 V (80 mA / V)
    Output Current 4 - 400 mA
    * 0.000 mA when OFF or V-IN < 0.1 V
    Max Forward Voltage 7 V
    Rise / Fall time < 10 µsec
    Max modulation frequency 10 kHz


  • * Power coupled into 50 μm core, NA 0.22 optical fiber.
    † The unit prices of the 473 nm and 488 nm laser diode module are significantly higher.
    LED Diode Codes
    Central Wavelength (nm) Bandwidth FWHM (nm) Power (mW)* Laser Diode Code

    405 <3 100 405/100

    450 <3 75 450/075

    473 <3 70 473/070†

    488 <3 50 488/050†

    520 <3 60 520/060

    638 <3 80 638/080

    638 <3 120 638/120

  • Laser Diode Fiber Light Source
      Manuel
    Laser Diode Fiber Light Source
      Drawing
    Laser Safety
      Application Note
    Connectorized Laser Diode Modules
      Sample Data Sheet