Distributed feedback fiber laser based on a fiber Bragg grating inscribed using the femtosecond point-by-point technique

作者：Skvortsov M I; Wolf A A; Dostovalov A V; Vlasov A A; Akulov V A; Babin S A

来源：Laser Physics Letters, 2018, 15(3): 035103.

DOI：10.1088/1612-202X/aa9cca

• fiber laser
• fiber Bragg grating
• distributed feedback
• birefringence

A distributed feedback (DFB) fiber laser based on a 32-mm long pi-phase-shifted fiber Bragg grating inscribed using the femtosecond point-by-point technique in a single-mode erbiumdoped optical fiber (CorActive EDF-L 1500) is demonstrated. The lasing power of the DFB laser reaches 0.7 mW at a wavelength of 1550 nm when pumped with a laser diode at a wavelength of 976 nm and power of 525 mW. The width of the lasing spectrum is 17 kHz. It is shown that the pi-phase-shifted fiber Bragg grating fs-inscribed in a non-PM fiber provides the selection of the single polarization mode of the DFB laser. DFB laser formation in a highly doped non-photosensitive optical fiber (CoreActive SCF-ER60-8/ 125-12) is also demonstrated.

• 出版日期2018-3