Timing jitter reduction of a passively Q-switched laser

Sheng Lung Huang*, Tsung Yuan Tsui, Chien Hung Wang, Fu Jen Kao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

31 Scopus citations


The timing jitter of passively Q-switched Nd:Y3Al5O12/Cr4+:Y3Al5O12 (Nd:YAG/Cr4+:YAG) laser is studied both numerically and experimentally. It is found that spontaneous noise in the microwatt range can significantly affect the repetition rate of high-power Q-switched lasers, and creates large pulse-to-pulse timing jitter. External modulation on the Cr4+:YAG saturable absorber by a laser diode is proposed to alleviate this jitter problem. Reduction in timing jitter by a factor of 2.5 is demonstrated.

Original languageEnglish
Pages (from-to)L239-L241
JournalJapanese Journal of Applied Physics, Part 2: Letters
Issue number3 A
StatePublished - 1999


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