Optical comb filters used with waveguide, laser and manufacturin

Details Optical comb filters used with waveguide, laser and manufacturin Optical comb filters used with waveguide, laser and manufacturin

1996-04-29

1997-12-16

Healy, Brian

Coherent light generators

Particular resonant cavity

Specified cavity component

372 92, 372108, 385 14, 385 42, 385130, 385131, 359589, 359590, H01S 308, G02B 612, G02B 528

Patent

active

056993781

ABSTRACT:
An optical filter is formed from at least two gratings (102,103) located in a waveguide region (104) of a` semiconductor optical device (101). Each grating has a multiple peak optical passband. The gratings are spaced apart in the waveguide region and form an optical cavity having a comb-filter characteristic. The gratings may be located in the active region of an optical gain element and in a preferred example are superstructure gratings (SSGs). A number of filters may be joined together in series.

REFERENCES:
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patent: 5455835 (1995-10-01), Atkins et al.
patent: 5561675 (1996-10-01), Bayon et al.
patent: 5600665 (1997-02-01), Minden et al.

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