Single-frequency Q-switched Er:YAG laser with high frequency and energy stability via the Pound-Drever-Hall locking method

Chao Yong Chen, Qing Wang*, Shuai Huang, Xu Zhang, Kai Xin Wang, Ming Wei Gao, Chun Qing Gao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

We present an injection-seeding Q-switched 1645 nm Er:YAG ceramic laser with high frequency stability and energy stability by combining the injection-seeding technique and Pound-Drever-Hall technique. 10.31 mJ single-frequency pulses with optimal frequency stability (525 kHz) and relative energy stability (0.52%) at a high pulse repetition rate of 1 kHz are obtained.To the best of our knowledge, this is the highest frequency stability and energy stability so far in a high pulse repetition frequency, large pulse energy, single-frequency Q-switched Er-doped solid laser. This single frequency laser with high stability provides an excellent light source for a coherent lidar system.

Original languageEnglish
Pages (from-to)3745-3748
Number of pages4
JournalOptics Letters
Volume45
Issue number13
DOIs
Publication statusPublished - 1 Jul 2020

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