1. 1 kHz dual sub-pulse train picosecond radially polarized beam KGW Raman generator capable of achieving multiple optical communication wavelength
- Author
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Xin-Biao Du, Ce Yang, Hongpan Peng, Ning Ma, Yao-Yao Xue, Xie Zhang, Meng Chen, and Shang Lu
- Subjects
Materials science ,business.industry ,Energy conversion efficiency ,Optical communication ,02 engineering and technology ,Optical field ,021001 nanoscience & nanotechnology ,01 natural sciences ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,010309 optics ,symbols.namesake ,Optics ,Picosecond ,0103 physical sciences ,symbols ,Pulse wave ,Laser beam quality ,Electrical and Electronic Engineering ,Physical and Theoretical Chemistry ,0210 nano-technology ,Raman spectroscopy ,business ,Beam (structure) - Abstract
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.
- Published
- 2019