Article comprising a light-actuated micromechanical photonic swi

Details Article comprising a light-actuated micromechanical photonic swi Article comprising a light-actuated micromechanical photonic swi

1998-08-24

2000-06-13

Lee, John R.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

25022711, 385 16, G02B 610, H01J 156

Patent

active

060752394

ABSTRACT:
An article comprising a light-actuated photonic switch is disclosed. The light-actuated photonic switch advantageously includes a photogenerator that powers a micro-electromechanical systems (MEMS) switch having very low voltage requirements. The MEMS switch is operable to move a reflector into or out of a path of an optical signal travelling between two waveguides. Since the MEMS switch has such low voltage requirements, a long wave photogenerator, which generates relatively low voltages, can be used. As long wavelength light experiences relatively little attenuation in optical fiber, active lightwave circuits incorporating the present light-actuated photonic switch can have very long fiber runs to remote nodes.

REFERENCES:
patent: 5367584 (1994-11-01), Ghezzo et al.
patent: 5367585 (1994-11-01), Ghezzo et al.
patent: 5714773 (1998-02-01), Burrows et al.
patent: 5781331 (1998-07-01), Carr et al.
patent: 5953469 (1999-09-01), Zhou
Giles et al., "Microwatt-Power InGaAs Photogenerator for Lightwave Networks," IEEE Photonics Letts., vol. 9, No. 5, May 1997, pp. 666-668.
Lee et al., "Surface-Micromachined Free-Space Fibre-Optic Switches," Elec. Letts., vol. 31, No. 17, Aug. 17, 1995, pp. 1481-1482.

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