Title :
Bandwidth-adjustable ultra-flat Brillouin scattering spectrum in optical fiber
Author :
Mizuno, Yosuke ; Hayashi, Neisei ; Nakamura, Kentaro
Author_Institution :
Precision & Intell. Lab., Tokyo Inst. of Technol., Yokohama, Japan
fDate :
June 30 2013-July 4 2013
Abstract :
We present a simple technique for obtaining a broad and flat Brillouin gain spectrum (BGS) in optical fibers. By modulating the driving current of a pump laser diode with triangular waveform, a BGS with lower than 0.3 dB gain variation over > 200 MHz is achieved, which is, to the best of our knowledge, the flattest BGS ever reported. With this technique, the bandwidth of the flattened BGS can be controlled by adjusting the amplitude and/or frequency of the current modulation.
Keywords :
Brillouin spectra; optical fibres; optical modulation; optical pumping; semiconductor lasers; bandwidth-adjustable ultraflat Brillouin scattering spectrum; current modulation; gain spectrum; optical fiber; optical modulation; pump laser diode; triangular waveform; Bandwidth; Frequency modulation; Gain; Optical fiber amplifiers; Scattering;
Conference_Titel :
Lasers and Electro-Optics Pacific Rim (CLEO-PR), 2013 Conference on
Conference_Location :
Kyoto
DOI :
10.1109/CLEOPR.2013.6600511
