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7 March 2006 Real-time chirp control of an external-cavity semiconductor laser for absolute distance measurement
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Abstract
A new laser range finder using optical feedback interferometry has been developed. Our purpose is to design a high-accuracy sensor for short distances, the principle being based on the use of a Mach-Zender interferometer to control the chirp of the laser diode. Experimentally, a distance to the target of 10 cm with an accuracy of ±50 µm has been determined.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Thierry M. Bosch and Noel Servagent "Real-time chirp control of an external-cavity semiconductor laser for absolute distance measurement", Proc. SPIE 4101, Laser Interferometry X: Techniques and Analysis, (7 March 2006); https://doi.org/10.1117/12.498413
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