Title :
Optimum Optical Local Oscillator Power Levels Impact on Signal-to-Noise Ratio in Heterodyne
Author :
Li Yan-chao ; Gao Long ; Cong Hai-fang ; Qu Yang ; Gao Jie ; Wang Ao-you ; Wang Chun-hui
Author_Institution :
Nat. Key Lab. of Tunable Laser Technol., Harbin Inst. of Technol., Harbin, China
Abstract :
The optical local oscillator power which makes the maximized signal-to-noise ratio is analyzed. Aiming at photovoltaic detector, the optimum optical local oscillator power is researched, and the theoretic value of optimum optical local oscillator power is acquired, and takes some experimental research basing on the theory.
Keywords :
heterodyne detection; oscillators; photodetectors; photoelectric devices; heterodyne detection; optimum optical local oscillator power level; photovoltaic detector; signal-to-noise ratio; Detectors; Laser radar; Laser theory; Local oscillators; Nonlinear optics; Optical mixing; Optical noise; Optical sensors; Signal to noise ratio; Wind;
Conference_Titel :
Photonics and Optoelectronic (SOPO), 2010 Symposium on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4963-7
Electronic_ISBN :
978-1-4244-4964-4
DOI :
10.1109/SOPO.2010.5504186
