Spectrum Narrowing Characteristics of a Tunable Ti:sapphire Laser

파장가변 Ti:sapphire 레이저의 협대역 특성

  • 이용우 (경희대학교 전자공학과) ;
  • 이주희 (경희대학교 전자공학과)
  • Published : 1995.03.01

Abstract

We have studied the spectral narrowing characteristics of the tunable Ti:sapphire laser pumped by the second harmonic generation of Nd:YAG laser. Ti:sapphire laser has uniform excitation distribution by both-side end pumping. We have controlled the angle of grating linearly and achieved the continuous selection of wavelength in the broad range from 705 to 835 nm. The output energy of $380{\mu}J$ at 790 nm. the spectral linewidth of $0.13cm_{-1}$ and the beam divergence of 1.2 mrad have been obtained. The wavelength range with power more than 50% of maximum output was 730-825 nm.825 nm.

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