Optical integrated circuit device and driving method therefor

Details Optical integrated circuit device and driving method therefor Optical integrated circuit device and driving method therefor

1995-12-04

1997-10-07

Davie, James W.

Coherent light generators

Particular active media

Semiconductor

372 45, 372 46, 372 96, H01S 310

Patent

active

056756020

ABSTRACT:
An optical integrated circuit device includes a compound semiconductor substrate, a semiconductor laser including a compound semiconductor layer, a waveguide of a compound semiconductor layer having the same energy band gap as that of the semiconductor laser, a semiconductor amplifier having the same energy band gap as that of the semiconductor laser, a common electrode disposed on the rear surface of the substrate, a semiconductor laser electrode for current flow between the laser electrode and the common electrode so that the current is injected into the laser, a waveguide electrode for current flow between the waveguide electrode and the common electrode so that the current is injected into the waveguide, and a semiconductor amplifier electrode for current flow between the amplifier electrode and the common electrode so that the current is injected into the amplifier. Therefore, the compound semiconductor layers constituting the semiconductor laser, the waveguide, and the amplifier are grown as a single layer and the optical integrated circuit device is easily fabricated, and an absorption loss in the waveguide is suppressed by applying a voltage across the common electrode and the waveguide electrode to inject current into the waveguide.

REFERENCES:
patent: 4873691 (1989-10-01), Uomi et al.
patent: 5325392 (1994-06-01), Tohmori et al.
patent: 5388106 (1995-02-01), Tabuchi
Zah et al, "Integration Of A Multi-Wavelength Compressive-Strained Multi-Quantum-Well Distributed-Feedback Laser Array With A Star Coupler And Optical Amplifiers", 13th IEEE International Semiconductor Laser Conference, Sep. 1992, pp. 194-195.

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