High Power Pulse Laser Reflection Sequence Combination with a Fast Steering Mirror

Funds: Supported by the Knowledge Innovation Program of Chinese Academy of Sciences under Gant No GJJSTD20180004.
  • Received Date: April 18, 2019
  • Published Date: June 30, 2019
  • We propose and demonstrate a new approach for a high power pulse laser reflection sequence combination with a fast steering mirror (FSM). This approach possesses significant advantages for lasers combining with a variety of output power, wavelength, pulse duration, repetition rates and polarization. The maximum number of laser routes participating in combination principally depends on the FSM's adjustment time of the step response, lasers' repetition rates and pulse duration. A proof-of-principle experiment is performed with two 2-kW level pulsed beams. The results indicate that the combined beam has an excellent pointing stability with rms pointing jitter 8.5 μrad. Meanwhile, a high combining efficiency of 98.6% is achieved with maintaining good beam quality.
  • Article Text

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