Title :
MSM Photodiode-Based Highly Accurate 3D Laser Impulse Radar
Author :
Djebari, Mustapha ; Kompa, Giunter
Author_Institution :
D-34121 Kassel, Wilhelmshöher Allee 73, FG Hochfrequenztechnik, University of Kassel, Germany. E-mail: musta@hfm.e-technik.uni-kassel.de
Abstract :
Based on the recently developed modulation scheme of highly dynamic and strong carrier injection into the active zone of a single- heterostructure (SH) laserdiode, laser pulses of some hundreds of watts and pulse widths (FWHM) of about 30 ps are available. Such optical pulses are useful for high precision near-field ranging. Till now suited optical receivers are not available. This paper reports about a broadband optical receiver using an MSM photodiode. Measurement uncertainties in the micrometer range could be attained by range data error correction using a nonlinear equivalent network for the device. The results are demonstrated on the basis of 2D and 3D mapped objects.
Keywords :
Charge carrier processes; Circuit simulation; Laser radar; Optical pulses; Optical receivers; Photodiodes; Pulse width modulation; RLC circuits; Space vector pulse width modulation; Transfer functions;
Conference_Titel :
Microwave Conference, 1999. 29th European
Conference_Location :
Munich, Germany
DOI :
10.1109/EUMA.1999.338314
