High-repetition-rate quasi-CW side-pumped mJ eye-safe laser with a monolithic KTP crystal for intracavity optical parametric oscillator

C. Y. Cho, Y. C. Chen, Y. P. Huang, Y. J. Huang, Kuan-Wei Su, Yung-Fu Chen

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

We demonstrate a high-repetition-rate millijoule passively Q-switched eye-safe Nd:YVO4 laser pumped by a quasi-CW diode stack. A theoretical analysis has been explored for the design criteria of generating TEMn,0 mode in the diode-stack directly side-pumping configuration. We successfully generate TEMn,0 modes at 1064 nm by adjusting the gain medium with respected to the laser axis. We further observe the spatial cleaning ability for generating an nearly TEM 0,0 mode output at 1573 nm with a monolithic OPO cavity. At the repetition rate up to 200 Hz, the output pulse energy reaches 1.21 mJ with the threshold pump energy of 17.9 mJ.

Original languageEnglish
Pages (from-to)7625-7631
Number of pages7
JournalOptics Express
Volume22
Issue number7
DOIs
StatePublished - 7 Apr 2014

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