26 February 2013 Precisely tunable L-band multi-wavelength fiber laser
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In this paper, we propose a scheme on precisely tunable L-band multi-wavelength fiber laser. This fiber laser has two main characteristics namely broad wavelength band, uniform power spectrum and precise electronic tunability. About 65 wavelengths output within ± 1.5dB power variation with 50GHz channel spacing in broad spectrum range can be obtained at room temperature. The measured optical signal noise ratio (OSNR) and line width of each wavelength are about 20dB and 345.5MHz respectively. Theses 65 wavelengths are able to be tuned simultaneously up or down in frequency domain with a tuning step ranging from 10 MHz to 14 GHz. The tuning resolution can potentially be as low as 1 Hz in our experiment.
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Xuwei Qin, Xuwei Qin, Zhaoying Wang, Zhaoying Wang, Cuiqin Gao, Cuiqin Gao, Mei Sang, Mei Sang, Dongfang Jia, Dongfang Jia, Tianxin Yang, Tianxin Yang, "Precisely tunable L-band multi-wavelength fiber laser", Proc. SPIE 8601, Fiber Lasers X: Technology, Systems, and Applications, 860120 (26 February 2013); doi: 10.1117/12.2001239; https://doi.org/10.1117/12.2001239

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