Arrangement for controlling or regulating an emission wavelength

Details Arrangement for controlling or regulating an emission wavelength Arrangement for controlling or regulating an emission wavelength

1988-03-23

1989-03-21

Scott, Jr., Leon

Coherent light generators

Particular beam control device

Optical output stabilization

358 60, 372 29, H01S 313

Patent

active

048150819

ABSTRACT:
An arrangement for controlling or regulating the emission wavelength and emitted optical power of a semiconductor laser is provided in optically integrated fashion. The optical power of the laser is at least partially supplied to an optical detector device and to a wavelength selective optical filter device. That part of the supplied power which passes through the filter device is conducted to another opto-electrical detector device. As a result of the two diodes, the optical power and the emission wavelength of the laser are simultaneously measured, whereby two control signals for the injection current of the laser are obtained.

REFERENCES:
patent: 4672457 (1987-06-01), Hyatt

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