Coherent light generators – Particular component circuitry – Optical pumping
Patent
1988-11-28
1990-02-13
Davie, James W.
Coherent light generators
Particular component circuitry
Optical pumping
350 9611, 372 45, 372108, H01L 3300
Patent
active
049011235
ABSTRACT:
According to this invention, a superluminescent diode includes a current injection portion having a current injection electrode formed adjacent to a first end face, a light-absorption portion contiguous with the current injection portion; and a waveguide continuously formed to extend from the current injection portion to the light-absorption portion. The waveguide is constituted by an active layer and a member which completely buries the active layer, has a bandgap larger than that of the active layer, and is formed of a material having a small refractive index. The waveguide of the current injection portion is linearly formed to be perpendicular to the first end face. The waveguide of the light-absorption portion has an end portion for guiding reflected light in a direction different from a propagation direction of light propagating through the waveguide.
REFERENCES:
patent: 4634928 (1987-01-01), Figueroa et al.
patent: 4718070 (1988-01-01), Liau et al.
patent: 4730331 (1988-03-01), Burnham et al.
patent: 4799229 (1989-01-01), Miyazawa et al.
SPIE vol. 719, Fiber Optic Gyros: 10th Anniversary Conference 1986 pp. 208-215.
OQE87-39, pp. 71-75, 1987 by Tanioka et al.
OFS'88 FDD 2-1, pp. 451-454 (1988), Jan.) N. S. K. Kwong et al.
Nagai Haruo
Noda Juichi
Noguchi Yoshio
Takada Kazumasa
Davie James W.
Nippon Telegraph and Telephone Corporation
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