Generation of orthogonally polarized self-mode-locked Nd:YAG lasers with tunable beat frequencies from the thermally induced birefringence

C. L. Sung, H. P. Cheng, C. Y. Lee, C. Y. Cho, H. C. Liang, Yung-Fu Chen*

*Corresponding author for this work

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

The simultaneous self-mode-locking of two orthogonally polarized states in a Nd:YAG laser is demonstrated by using a short linear cavity. A total output power of 3.8 W can be obtained at an incident pump power of 8.2 W. The beat frequency Δfc between two orthogonally polarized modelocked components is observed and measured precisely. It is found that the beat frequency increases linearly with an increase in the absorbed pump power. The origin of the beat frequency can be utterly manifested by considering the thermally induced birefringence in the Nd:YAG crystal. The present result offers a promising approach to generate orthogonally polarized mode-locked lasers with tunable beat frequency.

Original languageEnglish
Pages (from-to)1781-1784
Number of pages4
JournalOptics Letters
Volume41
Issue number8
DOIs
StatePublished - 15 Apr 2016

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