Self-mixing interferometer: analysis of the output signals
Optics Express, Vol. 14, Issue 20, pp. 9188-9196 (2006)
http://dx.doi.org/10.1364/OE.14.009188
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Abstract
This paper presents the calculation of amplitude and relative phase of signals at the three outputs available in a self-mixing interferometer, i.e. the front output on the target side, the back output on the rear of the chip, and, for diode laser, the junction voltage output. Front and rear outputs are observed to be in phase for the He-Ne laser while they are in phase opposition in the diode laser. This discrepancy can now be explained theoretically. It will also be shown how the junction voltage output is always in phase opposition with respect to the rear output. Experimental measurements were carried out on two sources: a laser diode and a He-Ne laser, validating the calculations.
© 2006 Optical Society of America
OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(250.0250) Optoelectronics : Optoelectronics
ToC Category:
Instrumentation, Measurement, and Metrology
History
Original Manuscript: May 12, 2006
Revised Manuscript: July 31, 2006
Manuscript Accepted: July 31, 2006
Published: October 2, 2006
Citation
Enrico M. Randone and Silvano Donati, "Self-mixing interferometer: analysis of the output signals," Opt. Express 14, 9188-9196 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-20-9188
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References
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