OT-20: Er: Glass Laser Transmitters with Diode pumping.

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Specifications

wavelength

output power

pulse energy

pulse width

rep rate

q-switch type

series

Overview of OT-20– Er: Glass Q-Switched Laser Transmitter

The OT-20 is a high energy q-switched 1.54 mm diode-pumped solid-state (DPSS) laser from Optitask LTD.   This air-cooled, actively q-switched laser is explicitly designed for high energy laser transmission, in the field with an operating temperature range from -40oC to 75oC.  The OT-20 delivers over 10 mJ of pulse energy with a full width half maximum (FWHM) pulse width of 30 ns and a pulse repetition rate of 1 Hz in continuous operation or 5 Hz in burst mode.  With an output beam diameter of <4 mm and a beam divergence less than 5 milliradians these lasers are ideally suited for long-range transmission.  The OT-20 also has a built-in photodiode for use as a reference for the starting signal.

OT-20 Features:

  • 1.54µm wavelength
  • >10mJ average output energy
  • 20Hz repetition rate
  • Active Q-switching
  • 30ns pulse width
  • 4mm beam <5mrad divergence
  • -40oC to 65oC
  • Forced air cooling

OT-20 Applications:

  • Range Finding
  • Active Night Vision