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Spatial-mode-matching efficiencies for heterodyned GaAlAs semiconductor lasers

Technical Report ·
OSTI ID:6868464

High spatial-mode-matching efficiencies are experimentally demonstrated when open-loop frequency-stabilized GaAlAs semiconductor lasers are heterodyned on silicon p-i-n detectors. Repeatable values of 75% are obtained using two independent lasers. The mode-matching efficiency increases to 90% when a single modulated laser is self-heterodyned using an unequal-path-length Mach-Zehnder interferometer. Experimental data are shown to match closely with theoretical predictions.

Research Organization:
Massachusetts Inst. of Tech., Lexington (USA). Lincoln Lab.
OSTI ID:
6868464
Report Number(s):
AD-A-194860/3/XAB; JA-5978
Country of Publication:
United States
Language:
English