Integrated laser and coupled waveguide

Details Integrated laser and coupled waveguide Integrated laser and coupled waveguide

1994-05-25

2000-05-16

Sanghavi, Hemang

Optical waveguides

With optical coupler

385 14, 385 37, 385 50, 385 88, 372 50, G02B 626

Patent

active

060647833

ABSTRACT:
A grating (461) coupling the output of a semiconductor laser (410) in a semiconductor waveguide to a dielectric waveguide (451) having a core (458) which may be efficiently butt-coupled to the core of an optical fiber (470); the laser and semiconductor waveguide, coupling grating, and dielectric waveguide are integrated on a single substrate. Further, multiple lasers (410, 420, 430, 440) with differing lasing frequencies may be integrated and their outputs grating coupled into a single dielectric waveguide (450) for wavelength division multiplexing.

REFERENCES:
patent: 4097118 (1978-06-01), Hammer
patent: 4318058 (1982-03-01), Mito et al.
patent: 4737007 (1988-04-01), Alferness et al.
patent: 5070488 (1991-12-01), Fukushima et al.
patent: 5123070 (1992-06-01), Bradley
patent: 5220573 (1993-06-01), Sakata et al.
Aiki, et al., "A Frequency-Multiplexing Light Source with Monolithically Integrated Distributed Feedback Diode Lasers", IEEE Journal of Quantum Electronics, vol. QE-13, No. 4, Apr. 1977, pp. 220-223.

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