Laser & Optoelectronics Progress, Volume. 49, Issue 5, 51402(2012)
Narrow Linewidth Semiconductor Lasers Based on Electrical Feedback
Narrow linewidth semiconductor lasers are widely used in the field of radar and sensor. So the research of narrow linewidth laser is necessary. Using electric feedback structure, and with a frequency discriminators, the center wavelength is stablized. The laser from frequency discriminators is converted to current by photoelectric detector. Different signals of inherent detector and the current are injected into laser to reduce the frequency noise. So the laser line width of 0.5 nm reduces to 0.08 nm.
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Yuan Qiping, Zheng Tianmei, Tong Zhengrong, Yang Xiufeng, Cao Ye. Narrow Linewidth Semiconductor Lasers Based on Electrical Feedback[J]. Laser & Optoelectronics Progress, 2012, 49(5): 51402
Category: Lasers and Laser Optics
Received: Dec. 8, 2011
Accepted: --
Published Online: Apr. 1, 2012
The Author Email: Qiping Yuan (yqp1962@163.com)