Radially polarized and passively Q-switched fiber laser
2010; Optica Publishing Group; Volume: 35; Issue: 21 Linguagem: Inglês
10.1364/ol.35.003574
ISSN1539-4794
AutoresDi Lin, Kegui Xia, Ruxin Li, Xiaojun Li, Guoqiang Li, Ken‐ichi Ueda, Jianlang Li,
Tópico(s)Photonic Crystal and Fiber Optics
ResumoWe report, for the first time to our knowledge, a radially polarized and passively Q-switched Yb-doped fiber laser. By using a Cr(4+):YAG crystal as a saturable absorber and a photonic crystal grating as a polarization mirror, a radially polarized pulse is produced, which has 202 W of peak power, 75 ns duration, and ~92% polarization purity at a 56.6 kHz repetition rate. The Q-switched pulse with radial polarization from the fiber laser would facilitate numerous applications.
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