DocumentCode
3406125
Title
Laser diode linewidth measurement by means of self-mixing interferometry
Author
Giuliani, G. ; Norgia, M. ; Donati, S.
Author_Institution
Dipt. di Elettronica, Pavia Univ., Italy
Volume
2
fYear
1999
fDate
1999
Firstpage
726
Abstract
We have demonstrated a new technique for the measure of the linewidth of laser diodes (LD), based on the self-mixing effect. The linewidth is obtained from a measurement of the interferometric phase noise around the switching of the sawtooth-like signal waveform. The method can be applied to all LDs without isolator, it does not require any RF equipment nor long fiber of adjustable length and it is in agreement with the self-heterodyne technique
Keywords
heterodyne detection; laser noise; light interferometry; optical testing; phase noise; semiconductor device testing; semiconductor lasers; spectral line breadth; LDs; RF equipment; interferometric phase noise; laser diode linewidth measurement; long fiber; sawtooth-like signal waveform; self-heterodyne technique; self-mixing effect; self-mixing interferometry; Diode lasers; Fluctuations; Frequency; Laser noise; Noise measurement; Optical interferometry; Oscilloscopes; Phase measurement; Phase noise; Shape measurement;
fLanguage
English
Publisher
ieee
Conference_Titel
LEOS '99. IEEE Lasers and Electro-Optics Society 1999 12th Annual Meeting
Conference_Location
San Francisco, CA
ISSN
1092-8081
Print_ISBN
0-7803-5634-9
Type
conf
DOI
10.1109/LEOS.1999.811939
Filename
811939
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