High temperature resistant ultra-short DBR Yb-doped fiber laser

Hushan Wang, Songsong Xiong, Jiazheng Song, Fengyan Zhao, Zhijun Yan, Xiaohu Hong, Ting Zhang, Wei Zhang, Kaiming Zhou, Cheng Li, Yishan Wang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


We present a distributed Bragg reflector (DBR) Yb-doped fiber laser based on a pair of type IA fiber Bragg gratings (FBGs). The high temperature resistant gratings are fabricated in high absorption hydrogen loaded Yb-doped silica fiber by use of a 244 nm argon laser and phase mask method. The DBR laser, with only 10 mm cavity length, exhibits high signal-noise ratio (SNR) of over 50 dB and can survive at 450°C in a long term with stable output power and central wavelength. Besides, the laser has a relatively low temperature sensitivity of 8.9 pm/°C, which contributes to cross-sensitization of stress and temperature.

Original languageEnglish
Pages (from-to)4474-4478
Number of pages5
JournalApplied Optics
Issue number16
Early online date6 May 2019
Publication statusPublished - 31 May 2019


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