Title :
Optical absolute distance measurement using a trapezoidally modulated laser diode
Author :
Ci-Ling Pan ; Yung-Hui Chuang ; Pie-Yau Chien
Author_Institution :
Inst. of Electro-Opt. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan
Abstract :
Summary form only given. We demonstrate a new type of two wavelength interferometer for absolute distance measurement which has several advantages: (1) only a single laser diode is required; and (2) the phase ambiguity problem is solved by using the trapezoidal-modulation technique.
Keywords :
electro-optical modulation; laser ranging; light interferometry; measurement errors; measurement theory; semiconductor lasers; optical absolute distance measurement; phase ambiguity problem; single laser diode; trapezoidal-modulation technique; trapezoidally modulated laser diode; two wavelength interferometer; Charge carrier processes; Diode lasers; Distance measurement; Frequency; Independent component analysis; Optical interferometry; Optical modulation; Optical signal processing; Optimized production technology; Signal processing;
Conference_Titel :
Lasers and Electro-Optics, 1996. CLEO '96., Summaries of papers presented at the Conference on
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
1-55752-443-2
