Method for biasing semiconductor lasers

Details Method for biasing semiconductor lasers Method for biasing semiconductor lasers

1997-12-15

2000-01-18

Healy, Brian

Coherent light generators

Particular active media

Semiconductor

372 26, 372 28, 372 29, 372 32, 372 38, 372 43, 372 46, H01S 319

Patent

active

060163267

ABSTRACT:
A method for biasing a semiconductor laser (12) at the threshold level of the semiconductor laser (12). The method includes applying pilot tone signals having the same frequency to a bias current and a drive current of the semiconductor laser (12). A lateral detector (13) generates a photocurrent from spontaneous emissions of the semiconductor laser (12). Further, the method includes biasing the semiconductor laser (12) using a pilot tone signal of the photocurrent.

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