1645-nm single-frequency vortex laser from an Er:YAG nonplanar ring oscillator

Wang, KX; Zhang, X; Fu, SY; Gao, CQ

Gao, CQ (通讯作者)，Beijing Inst Technol, Sch Opt & Photon, Beijing 100081, Peoples R China.;Gao, CQ (通讯作者)，Minist Ind & Informat Technol, Key Lab Informat Photon Technol, Beijing 100081, Peoples R China.

OPTICS LETTERS, 2023; 48 (2): 331

Abstract

A 1645-nm single-frequency vortex beam with narrow linewidth from an Er:YAG nonplanar ring oscillator (NPRO) using an annular pump beam is demonstrate......

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