Semiconductor optical device

Details Semiconductor optical device Semiconductor optical device

Filed on

1994-11-23

Date issued

1997-02-18

Examiner

Bovernick, Rodney B.

Patent Class

Coherent light generators

SubClass

Particular active media

SubSubClass

Semiconductor

Other Related Categories

372 46, H01S 319

Type

Patent

Status

active

Patent number

056047622

Description

ABSTRACT:
A semiconductor optical device includes a n-clad layer, an active layer formed on the n-type clad, a carrier reservoir layer formed on the active layer, and a p-clad layer formed on the carrier reservoir layer. The thickness of the carrier reservoir layer is in a range where the oscillation wavelength shifts in a short wavelength direction with increasing driving current.

REFERENCES:
patent: 4796273 (1989-01-01), Yamaguchi
patent: 5034783 (1991-07-01), Chang et al.
patent: 5272109 (1993-12-01), Motoda
patent: 5375135 (1994-12-01), Okumura et al.
Morinaga et al, "Thermal Frequency Drift Suppression in Tunable DFB Lasers by Plasma Induced Frequency Shift Enhancement", IEEE Photonics Technology Letters, vol. 6, No. 4, Apr. 1994.

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