2 June 2014 Ultrahigh resolution optical spectrometry based on Brillouin dynamic grating
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Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 91572U (2014) https://doi.org/10.1117/12.2059406
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain
Abstract
We demonstrate an ultrahigh resolution optical spectrometry based on Brillouin dynamic grating (BDG). Taking advantage of creating a long grating in an optical fiber, an ultra-narrow bandwidth optical filter is realized by operating a BDG in a long single-mode fiber (SMF), and the optical spectrometry is performed by sweeping the center wavelength of the filter through swept-tuned laser. In experiment, a 4-fm (0.5 MHz) spectral resolution is achieved by operating a BDG in a 400-m SMF, and the wavelength coverage can be readily extended to C+L band with a commercial tunable laser.
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Yongkang Dong, Yongkang Dong, Taofei Jiang, Taofei Jiang, Lei Teng, Lei Teng, Hongying Zhang, Hongying Zhang, Liang Chen, Liang Chen, Xiaoyi Bao, Xiaoyi Bao, Zhiwei Lu, Zhiwei Lu, } "Ultrahigh resolution optical spectrometry based on Brillouin dynamic grating ", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91572U (2 June 2014); doi: 10.1117/12.2059406; https://doi.org/10.1117/12.2059406
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