Semiconductor optical amplifier device

Details Semiconductor optical amplifier device Semiconductor optical amplifier device

1998-08-31

2000-10-03

Ngo, Hung N.

Optical waveguides

Integrated optical circuit

385 45, 385 37, G02B 626

Patent

active

061284254

ABSTRACT:
To increase its saturation threshold very strongly without degrading its gain, whilst remaining compatible with any semiconductor amplifier structure or technology, a semiconductor optical amplifier includes an input coupler having an input port and g output ports and an output coupler having g input ports and one output port. The q output ports of the input coupler are respectively connected to the q input ports of the output coupler by q semiconductor optical amplifiers having the same amplification characteristics. Applications include transmission of optical signals and to producing "all optical" switching devices.

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Patent Abstracts of Japan, vol. 016, No. 341 (P-1391) Jul. 23, 1992 corresponding to JP 04 102834 A (Mitsubishi Electric Corp) Apr. 3, 1992.
J. M. Heaton et al, "Novel 1-to-N Way Integrated Optical Beam Splitters Using Symmetric Mode Mixing in GAAS/ALGAAS Multimode Waveguides", Applied Physics Letters, vol. 61, No. 15, Oct. 12, 1992, pp. 1754-1756.

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