Variable optical attenuator using crystal wedges

Details Variable optical attenuator using crystal wedges Variable optical attenuator using crystal wedges

2006-04-25

2006-04-25

Dang, Hung Xuan (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

Reexamination Certificate

active

07034979

ABSTRACT:
An optical device for processing an optical signal includes a crystal wedge, a polarization modulator, and a reflective element. The crystal wedge spatially separates an input optical signal into a first beam component having a first polarization state and a second beam component having a second polarization state. The crystal wedge has an optical axis arranged at an optical axis angle such that the first beam component and the second beam component converge. The polarization modulator changes the polarization state of the first beam component and the polarization state of the second beam component in response to a control signal. The reflective element reflects the first beam component and the second beam component such that the crystal wedge spatially recombines a portion of the first beam component having the second polarization state with a portion of the second beam component having the first polarization state to form an output optical signal.

REFERENCES:
patent: 3684350 (1972-08-01), Wentz
patent: 4410238 (1983-10-01), Hanson
patent: 4566761 (1986-01-01), Carlsen et al.
patent: 4685773 (1987-08-01), Carlsen et al.
patent: 5727109 (1998-03-01), Pan et al.
patent: 6166838 (2000-12-01), Liu et al.
patent: 6721078 (2004-04-01), Cao
Melman et al., “Wavelength-Division Multiplexer/Demultiplexer,” Electronics Letters, 2 pages, May 23, 1985.
Senior et al., “Devices for wavelength multiplexing and demultiplexing,” IEEE Proceedings, vol. 136, Pt. J., No. 3, 20 pages, Jun. 1989.

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