Toward Automatic Measurement of the Linewidth-Enhancement Factor Using Optical Feedback Self-Mixing Interferometry With Weak Optical Feedback

• Published in: IEEE journal of quantum electronics Vol. 43; no. 7; pp. 527 - 534
• Main Authors: Yanguang Yu, Jiangtao Xi, Chicharo, J.F., Bosch, T.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.07.2007; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Consistency; Exact sciences and technology; Fitting algorithm; Frequency measurement; Fundamental areas of phenomenology (including applications); Interferometry; Laser feedback; Laser theory; Lasers; linewidth-enhancement factor (LEF); Mathematical models; Optical feedback; optical feedback interferometry; Optical interferometry; Optical modulation; Optics; Parameter estimation; Physics; Power generation; self-mixing effect; semiconductor laser; Semiconductor lasers; Semiconductor lasers; laser diodes; Standard deviation; Strategy; Studies; Vibration; Vibration measurement; self-mixing effect; Output power; semiconductor laser; Vibration measurement; Measuring methods; Fitting algorithm; Line broadening; Algorithms; Semiconductor lasers; Optical feedback; Automatic measurement; linewidth-enhancement factor (LEF); optical feedback interferometry

This paper proposes an approach for automatically measuring the linewidth-enhancement factor (LEF) of semiconductor lasers using optical feedback self-mixing interferometry (OFSMI), which works in weak optical feedback regime and where the external target is subject to simple harmonic vibration with...