Coherent light generators – Particular beam control device – Optical output stabilization
Patent
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
Maerz Reinhard
Mahlein Hans
Schienle Meinrad
Jr. Leon Scott
Siemens Aktiengesellschaft
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