Title :
Distance measurement using serrodyne modulation and two-photon absorption process in Si-APD
Author :
Tanaka, Yuichi ; Tominaka, Seiji ; Kurokawa, Takashi
Author_Institution :
Div. of Adv. Electr. & Electron. Eng., Tokyo Univ. of Agric. & Technol., Koganei, Japan
Abstract :
A laser distance measurement using two-photon absorption (TPA) process in a Si-APD is reported. A newly developed configuration introducing serrodyne modulation suppresses the coherent interference noise, enhances TPA detection sensitivity, and reduces the system components.
Keywords :
avalanche photodiodes; elemental semiconductors; interference suppression; laser ranging; optical modulation; silicon; two-photon processes; APD; Si; TPA detection sensitivity enhancement; coherent interference noise suppression; laser distance measurement; serrodyne modulation; system component reduction; two-photon absorption process; Absorption; Distance measurement; Frequency modulation; Optical sensors; Photoconductivity; Probes;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2014 Conference on
Conference_Location :
San Jose, CA
