Optogenetics TTL Pulse Generators

OurOptogenetics TTL Pulse Generator allows you to generate up to 8 signals to master your experiments.

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Delivery: ~1-2 weeks


The optogenetics methods use light pulses to modulate the activity of genetically engineered light sensitive cells like neurons or others. Long gone are the days when a continuous streak of blue light, sent along an optical fiber to a mouse’s brain to make it run, provokes worldwide scientific sensation. These days, even the simplest optogenetics experiments require programmable TTL Pulse Generators to modulate LED or Laser Diode Module Drivers and create a desired light pulse train. When a direct modulation of the light source is not possible, as in the case of some solid state lasers, continuous light beam is modulated using shutters.  

Our miniaturized Optogenetics TTL Pulse Generators function with our other optogenetics products. The pulse train parameters and its triggering are controlled via Neuroscience Studio software. The generator connects to a computer with a USB cable and to a LED driver or a shutter with a BNC cable. Any channel of a TTL pulse generator can be assigned to a LED driver, a light shutter or it can be used as a trigger for other channels. 

Example: Four channel pulse generator can control modulation of two LED modules with channels 1 and 2 while channels 3 and 4 are used as respective inputs for triggers.

Note: Pre-2017 OTPG4 devices are not compatible with Doric Neuroscience Studio Software and require the OTPG4 Controller (see Downloads).   

Minimum pulse duration0.017 ms
Time Resolution Accuracy± 0.001 ms
Dimensions4 channels: 135 x 58x 21mm³ / 8 channels 135 x 70 x 21 mm³
Mass4 channels : 100 g / 8 channels: 200 g
Pulse FrequencyFrom 0.00006 Hz to 30 kHz
Output Voltage5.0 V (high impedance)
Input Voltage5.0 V (maximum)


Software to control legacy OTPG4 models. For current models, use the Doric Neuroscience Studio.

Download (15.27M)


Optogenetic TTL pulse generator manual

Download (1.36M)


8-channel Optogenetics TTL Pulse Generators

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4-channel Optogenetics TTL Pulse Generators

Download (117.4k)
  • CAD$0.00

    The LED Fiber Light Source: 1-channel model is an assembly of one independent LED and its driving electronics into a compact housing. The LED has its own output FC connector. 

  • CAD$0.00

    The LED Fiber Light Source: 2-channel model is an assembly of two independent LEDs and their driving electronics into a compact housing. Each LED has its own output FC connector.

  • This software is for backward compatibility with legacy (pre-2017) OTPG4 devices.Control the OTPG4 device  to create complex pulse protocols.