Linewidth-Narrowed, Linear-Polarized Single-Frequency Thulium-Doped Fiber Laser Based on Stimulated Brillouin Scattering Effect
A 2-μm linear-polarized hybrid Brillouin-Thulium fiber laser (BTFL) was experimentally investigated for linewidth narrowing. The low threshold for the BTFL in terms of Brillouin pump of ~200 mW, benefits from the gain of active fiber in the ring cavity for both Brillouin pump and generate...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2017-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/7936458/ |
| Summary: | A 2-μm linear-polarized hybrid Brillouin-Thulium fiber laser (BTFL) was experimentally investigated for linewidth narrowing. The low threshold for the BTFL in terms of Brillouin pump of ~200 mW, benefits from the gain of active fiber in the ring cavity for both Brillouin pump and generated Stokes light. More than 205 mW single-frequency Stokes laser was obtained with linewidth reduction ratio of ~8 times, from 36 to 4.6 kHz. Linear-polarized output was achieved with a polarization extinction ratio of 23.8 dB. |
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| ISSN: | 1943-0655 |