Optical source peak wavelength control using a wavelength feedba

Details Optical source peak wavelength control using a wavelength feedba Optical source peak wavelength control using a wavelength feedba

1983-05-27

1984-11-27

Orsino, Jr., Joseph A.

Coherent light generators

Particular beam control device

Optical output stabilization

372 34, 455609, H01S 310

Patent

active

044854757

ABSTRACT:
A graded index of refraction (GRIN) lens/diffraction grating combination is used to monitor the output source peak wavelength of an optical source. As the output wavelength of a source varies, different detectors are activated. The output of these detectors is used to control a thermoelectric cooler which will raise or lower the temperature of the source so as to drive the output wavelength toward the desired peak output wavelength.

REFERENCES:
patent: 4319830 (1982-03-01), Roach
patent: 4410266 (1983-10-01), Seider
Metcalf, B. D. et al., "High-Capacity Wavelength Demultiplexer with a Large-Diameter GRIN Rod Lens", Applied Optics, vol. 21, No. 5, Mar. 1, 1982.
Vanderleeden, J. C. "A Proposal for Wavelength-Tuning and Stabilization of GaAs Lasers with a Graded-Index Fibre Segment in a Dispersive Cavity" Opto-Electronics No. 6 (Nov.) 1974.

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