Abstract
A single-frequency (SF) fiber laser at 1200 nm was developed with a distributed Bragg reflector (DBR) configuration by splicing a 22 mm long highly holmium-doped ZBLAN (ZrF4-BaF2-LaF3-AlF 3-NaF) fiber with a pair of silica fiber Bragg gratings. The linewidth was estimated to be less than 100 kHz based on the measured frequency noise. The relative intensity noise was measured to be <110 dB=Hz at the relaxation oscillation peak and the polarization extinction ratio was measured to be >19 dB. Our results highlight the exciting prospect that wavelength coverage of SF DBR fiber lasers can be expanded significantly by using rare-earth-doped ZBLAN fibers.
Original language | English (US) |
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Pages (from-to) | 4185-4187 |
Number of pages | 3 |
Journal | Optics letters |
Volume | 37 |
Issue number | 20 |
DOIs | |
State | Published - Oct 15 2012 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics