Acta Photonica Sinica, Volume. 44, Issue 3, 306005(2015)
Output Characteristics of Bidirectional Feedback Brillouin-Raman Fiber Laser
The output characteristic of a new-designed bidirectional feedback Brillouin-Raman fiber with Brillouin pump variation was studied.The Brillouin-Raman fiber laser consists of a segment of 7 km long dispersion compensating fiber, 1455 nm Raman pump, tunable laser and double feedback loops.The BP wavelength must be closer to Raman peak gain to obtain more Stokes lines when RP is fixed at 250 mW.The power difference between the neighbouring Brillouin components and Rayleigh components was reduced by enhancing the BP power, the average intensity of Stokes lines was improved to the saturation value, simultaneously.Affected by the cross-gain in DCF, firstly the number of output lasing lines increase and then decrease when the BP power was adjusted from 1.8 dBm to 6.9 dBm.Maximum 37 output channels was obtained when BP power fixed at 4.4 dBm, the channel spacing is 0.078 nm.
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MA Wan-zhuo, WANG Tian-shu, ZHANG Peng, ZHAO Chun-ying, ZHANG Jing, LIU Xin, KONG Mei, JIANG Hui-lin. Output Characteristics of Bidirectional Feedback Brillouin-Raman Fiber Laser[J]. Acta Photonica Sinica, 2015, 44(3): 306005
Category: Fiber Optics and Optical Communications
Received: Sep. 5, 2014
Accepted: --
Published Online: Apr. 14, 2015
The Author Email: Wan-zhuo MA (wanzhuoma@126.com)