Multisegment integrated laser and a method for fabrication...

Coherent light generators – Particular active media – Semiconductor

Reexamination Certificate

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C372S046012

Reexamination Certificate

active

06885689

ABSTRACT:
A multisegment laser diode structure is presented in the form of two spaced-apart linear waveguide segments and two spaced-apart ring-like waveguide segments, arranged such that each of the ring-like segments is optically coupled to each of the linear waveguide segments. At least one of the waveguide segments includes an active lasing material. The waveguide segments are thus arranged such that four separate electrical contacts can be provided to four waveguide segments, respectively, thereby enabling separate driving of each of the waveguide segments.

REFERENCES:
patent: 4622671 (1986-11-01), Tsang
patent: 5126876 (1992-06-01), O'Meara
patent: 5398256 (1995-03-01), Hohimer et al.
patent: 5403775 (1995-04-01), Holonyak, Jr. et al.
patent: 5548607 (1996-08-01), Tsang
patent: 5742633 (1998-04-01), Stone et al.
patent: 03-054529 (1991-03-01), None
patent: WO0127692 (2001-04-01), None
patent: WO0127692 (2001-04-01), None
Y. Suematsu et al., “Dynamic Single-Mode Semiconductor Lasers with a Distributed Reflector”,IEEE J. of Lightwave Technology,1983, pp. 161-176, vol. LT-1, No. 1 Mar. 1983.
Chen et al, “Monolithic 1.54 mum semiconductor ring lasers grown by selective area epitaxy” Proceedings of the Conference on Lasers and Electro Optics, Baltimore, May 2-7, 1993, New York, IEEE, US, vol. Conf. 13, May 2, 1993, pp. 264-265.
Patent Abstracts of Japan, “JP 62287683, published Dec. 14, 1987, applicant NEC Corp, entitled Light Branching Semiconductor Laser.”
Little et al, “Microring Resonator Channel Dropping Filters”, Journal of Lightwave Technology, vol. 15, No. 6, pp. 998-1005, Jun. 1, 1997.

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