1 Khz Dual Sub-Pulse Train Picosecond Radially Polarized Beam KGW Raman Generator Capable of Achieving Multiple Optical Communication Wavelength
Optics communications(2019)
摘要
A dual sub-pulse train 1064 nm picosecond radially polarized beam pump KGW single-pass Raman generator was designed. The Stokes lines of both the 768 cm(-1) and 901 cm(-1) vibrational modes of the KGW Raman-active crystal were excited simultaneously. The Raman generator radiated up to seven Stokes lines in the infrared spectrum, which covered multiple optical communication channels. The overall Stokes average power reached 1.01 W, and the maximum Raman overall conversion efficiency was 23.1%. The interaction between the optical field and the Raman crystal was discussed from two perspectives of line width compression and beam quality.
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关键词
Multi-wavelength KGW Raman laser,Nonlinear optics,Infrared spectrum,Radially polarized beam,Dual sub-pulse train picosecond laser
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