Vertical modulator with dual mode DBR

Details Vertical modulator with dual mode DBR Vertical modulator with dual mode DBR

1996-09-20

1998-05-12

Ben, Loha

Optical: systems and elements

Optical modulator

Light wave temporal modulation

356350, 359359, 359360, G02F 109

Patent

active

057514682

ABSTRACT:
A vertical modulator with a dual mode distributed Bragg reflection (DBR), includes a pair of integrated elements using different wavelengths to provide functions of logical operation, data switching and wavelength conversion. The optical device includes a first optical structure operating at a first wavelength (.lambda..sub.1) and a second optical structure operating at a second wavelength (.lambda..sub.2). The first and second optical structures are formed over a semiconductor substrate. The first optical structure, which operates at the first wavelength (.lambda..sub.1), transmits its data to the second optical structure so that data corresponding to the second wavelength (.lambda..sub.2) can be output. Since the wavelength of input light is different from the wavelength of output light, the optical device serves as a modulator which performs a logic operation and switching function while carrying out wavelength conversion.

REFERENCES:
patent: 3851973 (1974-12-01), Macek
patent: 4637953 (1987-01-01), Sawamura et al.
patent: 4968136 (1990-11-01), Lim et al.
patent: 4983025 (1991-01-01), Umemura
patent: 5153688 (1992-10-01), Oda et al.
patent: 5336965 (1994-08-01), Meyer et al.
patent: 5508091 (1996-04-01), Austin

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