Abstract
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 language | English |
|---|---|
| Pages (from-to) | 4474-4478 |
| Number of pages | 5 |
| Journal | Applied Optics |
| Volume | 58 |
| Issue number | 16 |
| Early online date | 6 May 2019 |
| DOIs | |
| Publication status | Published - 31 May 2019 |
Funding
Funding. National Natural Science Foundation of China (NSFC) (61605239, 61690222); CAS-SAFEA International Partnership Program for Creative Research Teams; National Key R&D Program of China (2016YFF0200700, 2017YFB1104400).
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