Ring resonator based narrow-linewidth semiconductor lasers

Details Ring resonator based narrow-linewidth semiconductor lasers Ring resonator based narrow-linewidth semiconductor lasers

2005-02-15

2005-02-15

Wong, Don (Department: 2821)

Coherent light generators

Particular resonant cavity

Specified output coupling device

C372S092000, C372S094000, C372S096000, C372S098000, C372S102000

Reexamination Certificate

active

06856641

ABSTRACT:
The present invention is a method and apparatus for using ring resonators to produce narrow linewidth hybrid semiconductor lasers. According to one embodiment of the present invention, the narrow linewidths are produced by combining the semiconductor gain chip with a narrow pass band external feedback element. The semi conductor laser is produced using a ring resonator which, combined with a Bragg grating, acts as the external feedback element. According to another embodiment of the present invention, the proposed integrated optics ring resonator is based on plasma enhanced chemical vapor deposition (PECVD) SiO2/SiON/SiO2waveguide technology.

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