Semiconductor optical amplifier

Details Semiconductor optical amplifier Semiconductor optical amplifier

1998-08-12

2000-11-14

Ullah, Akm E.

Optical waveguides

Planar optical waveguide

Thin film optical waveguide

G02B 610

Patent

active

061481327

ABSTRACT:
A semiconductor optical amplifier wherein poalization independent gain, high saturation input light intensity, and high saturation gain are obtained. The semiconductor optical amplifier of the present invention comprises a 1.times.1 multi mode interference (MMI) light waveguide region and a couple of single mode waveguide regions, each of which is connected with each end of the multi mode region. The length of the multi mode waveguide region is about 340 .mu.m and the length of the single mode waveguide regions is about 20 .mu.m. The width of the multi mode waveguide region is about 12 .mu.m while the widths of the single mode waveguide regions 2,3 are about 1 .mu.m.

REFERENCES:
patent: 4689797 (1987-08-01), Olshansky
patent: 4939474 (1990-07-01), Eisenstein et al.
patent: 5436759 (1995-07-01), Dijaili et al.
L.B. Solando, et al., "Optical Multi-Mode Interference Devices Based on Self-Imaging: Principles and Applications", Journal of Lightwave Technology, vol. 13, NO. 4, Apr. 1995 pp. 615-627.

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