Synchronized self-mode-locked 1061-nm and 1064-nm monolithic Nd:YAG laser at cryogenic temperatures with two orthogonally polarized emissions: Generation of 670 GHz beating

T. L. Huang, C. L. Sung, H. P. Cheng, C. Y. Cho, H. C. Liang, Kuan-Wei Su, Kai-Feng Huang, Yung-Fu Chen

Research output: Contribution to journalArticle

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Abstract

A dual-wavelength self-mode-locked monolithic Nd:YAG laser at 1061 and 1064 nm is realized at cryogenic temperatures. At an incident pump power of 5.5 W, the total output power can reach 2.5 W and the mode-locked pulse width is 29 ps at a pulse repetition rate of 7.75 GHz. The synchronization of the dual-wavelength emissions leads to a beat frequency of 670 GHz in the individual mode-locked pulse. It is further discovered that the laser output consists of two orthogonally polarized components with a central frequency difference of 127 MHz. The central frequency difference between two orthogonal polarizations mainly arises from the external mechanical stress introduced by the copper holder for the laser crystal.

Original languageEnglish
Pages (from-to)22189-22197
Number of pages9
JournalOptics Express
Volume24
Issue number19
DOIs
StatePublished - 19 Sep 2016

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