Spontaneous laser line sweeping in bi-directional ring thulium fiber laser
Abstract
We report a phenomenon of self-sweeping in a bi-directional ring thulium-doped fiber laser, for the first time. The laser is spontaneously sweeping in both directions at a rate up to 0.2 nm/s with 15 nm sweeping range in 1.95 {\mu}m wavelength region. The laser output is switchable between two different working modes: periodical spontaneous laser line sweeping with generation of microsecond pulses in time domain; or static central wavelength with amplitude modulated temporally.
- Publication:
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arXiv e-prints
- Pub Date:
- December 2018
- DOI:
- 10.48550/arXiv.1812.02929
- arXiv:
- arXiv:1812.02929
- Bibcode:
- 2018arXiv181202929J
- Keywords:
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- Physics - Optics
- E-Print:
- Ready for submission to APEX, already presented in ASSL2018