Coherent light generators – Particular active media – Semiconductor
Patent
1985-06-19
1988-01-12
Davie, James W.
Coherent light generators
Particular active media
Semiconductor
372 45, 372 46, H01S 319
Patent
active
047196327
ABSTRACT:
An array of nonuniform semiconductor diode lasers with supermode control for achieving a single-lobed farfield pattern is described. This is accomplished by spatially segregating the fundamental supermode from the other supermodes, tailoring the spatial gain profile as as to favor the fundamental supermode, and sufficiently increasing the intechannel coupling so as to bring about single-lobed farfield operation. In a preferred embodiment, this is achieved in a shallowly proton implanted, tailored gain, chirped laser array in which the widths of the lasers are varied linearly across the array.
REFERENCES:
patent: 4594719 (1986-06-01), Ackley
"Phase-Locked Injection Laser Arrays with Non-Uniform Stripe Spacing," by D. E. Ackley, Ninth IEEE International Semiconductor Laser Conference, Rio-Sheraton Hotel, Rio de Janeiro, Brazil, Aug. 7-10, 1984, pp. 88-89.
"Phase-Locked Injection Laser Arrays with Variable Stripe Spacing," by Donald E. Ackley, et al., IEEE Journal of Quantum Electronics, vol. QE-22, No. 12, Dec. 1986, pp. 2204-2212.
"Chirped Arrays of Phase-Locked Semiconductor Lasers," by E. Kapon, et al., Seventh Topical Meeting on Integrated and Guided-Wave Optics, Post Deadline Papers, Orlando Hyatt Hotel, Kissimmee, Florida, Apr. 24-26, 1984, pp. PD-1- to PD-1-4.
Kapon Elyahou
Katz Joseph
Lindsey Christopher P.
Margalit Shlomo
Yariv Amnon
California Institute of Technology
Davie James W.
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