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Multi-wavelength erbium-doped fiber ring lasers based on an optical fiber tip interferometer
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Paper Abstract

Rare earth-doped fiber lasers are interesting in the field of optical fiber lasing and sensing. One of the interesting topics is the tunable/switched multi-wavelength lasers. However, due to the homogeneous broadening gain, it is difficult to generate multiple wavelengths in the fiber lasers based on erbium-doped fibers. Here, we propose a tunable multiwavelength erbium-doped fiber ring laser based on an optical fiber tip Fabry-Perot (FP) interferometer, which acts a wavelength filter and a reflector of the fiber ring laser. With the purpose to propose a method for switch multiwavelength spectra, the strain and thermal variations around the modal interferometers are investigated. The spectra are symmetric with a maximal power difference about 25 dB between the lasing modes and the average of the side mode suppression ratio, which is tuned into the C-band with a resolution of 0.02 nm. This laser offers low wavelength drift, good signal to noise ratio and high-power stability, and can therefore be used for sensing applications.

Paper Details

Date Published: 27 February 2019
PDF: 7 pages
Proc. SPIE 10914, Optical Components and Materials XVI, 1091420 (27 February 2019); doi: 10.1117/12.2511227
Show Author Affiliations
Heming Wei, Northwestern Univ. (United States)
Abhishek K. Amrithanath, Northwestern Univ. (United States)
Sridhar Krishnaswamy, Northwestern Univ. (United States)

Published in SPIE Proceedings Vol. 10914:
Optical Components and Materials XVI
Shibin Jiang; Michel J. F. Digonnet, Editor(s)

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