• Title/Summary/Keyword: 어븀:이터븀:유리 레이저

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Design of a Single Pulse Laser Range Finder with Er:Yb:glass Microchip Lasers (어븀:이터븀:유리 마이크로칩 레이저를 이용한 단펄스 거리측정기 설계)

  • Koh, Hae Seog;Lee, Chang Jae;Park, Choong Bum;Jeon, Hyoung Ha;Ahn, Pil Dong;Park, Do Hyun
    • Journal of the Korea Institute of Military Science and Technology
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    • v.21 no.3
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    • pp.295-305
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    • 2018
  • We present a passively Q-switched monolithic Er:Yb:glass microchip laser developed in our lab. The microchip laser can produce pulses at 1535 nm of the 'eye-safe' wavelengths with the pulse energy of 50 uJ and the pulse width of 4-6 ns. Using the laser we also designed and developed a pulsed Er:Yb:glass microchip laser rangefinder. Expressions for background and signal power, noise, and signal-to-noise ratio are reviewed. A computer simulation was used to optimize laser power, receiver aperture, and preamplifier bandwidth for the efficient system design of the laser rangefinder. Experimental results are presented to compare with the theory.