Efficient second-harmonic generation from polarized thulium-doped fiber laser with periodically poled MgO:LiNbO3

Autor: Baofu Zhang, Biao Wang, Zhongxing Jiao
Rok vydání: 2015
Předmět:
Zdroj: Optics & Laser Technology. 69:60-64
ISSN: 0030-3992
DOI: 10.1016/j.optlastec.2014.12.018
Popis: We present an efficient method for polarized 963 nm emission based on second-harmonic generation from a high-power, polarized thulium-doped fiber laser using periodically poled MgO:LiNbO3 as the nonlinear material. The maximum 963-nm output power of 710 mW has been achieved with a pulse duration of 34 ns at the repetition rate of 100 kHz and a Gaussian spatial beam profile. The frequency doubling efficiency is up to 56%, and the total optic-to-optic conversion efficiency is more than 12.9%. In addition, third- and fourth-harmonic generations have been observed.
Databáze: OpenAIRE