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Tunable Fiber Laser with High Tuning Resolution in C-band Based on Echelle Grating and DMD Chip

The tunable fiber laser with high tuning resolution in the C-band is proposed and demonstrated based on a digital micromirror device (DMD) chip and an echelle grating. The laser employs a DMD as a programmable wavelength filter and an echelle grating with high-resolution features to design a cross-d...

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Detalles Bibliográficos
Autores principales: Li, Jinliang, Chen, Xiao, Dai, Dezheng, Gao, Yunshu, Lv, Min, Chen, Genxiang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6356483/
https://www.ncbi.nlm.nih.gov/pubmed/30625981
http://dx.doi.org/10.3390/mi10010037
Descripción
Sumario:The tunable fiber laser with high tuning resolution in the C-band is proposed and demonstrated based on a digital micromirror device (DMD) chip and an echelle grating. The laser employs a DMD as a programmable wavelength filter and an echelle grating with high-resolution features to design a cross-dispersion optical path to achieve high-precision tuning. Experimental results show that wavelength channels with 3 dB-linewidth less than 0.02 nm can be tuned flexibly in the C-band and the wavelength tuning resolution is as small as 0.036 nm. The output power fluctuation is better than 0.07 dB, and the wavelength shift is below 0.013 nm in 1 h at room temperature.