Optical switch

Details Optical switch Optical switch

2005-07-20

2008-08-05

Singh, Dalzid (Department: 2613)

Optical communications

Multiplex

Optical switching

C398S048000, C398S065000, C398S082000, C398S152000, C398S154000

Reexamination Certificate

active

07409157

ABSTRACT:
The present invention provides an optical switch in which a switching operation is not affected even when the polarization state of a control light varies. The optical switch includes a loop-form optical waveguide loop circuit formed from an optical nonlinear medium, a control light input arrangement for inputting the control light into the optical waveguide loop circuit and serving as a phase control arrangement, a wavelength demultiplexing/multiplexing circuit, and a phase bias circuit.

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Takahide Sakamoto and Kazuro Kikuchi, Nonlinear Optical Loop Mirror With an Optical Bias Controller for Achieving Full-Swing Operation of Gate Switching, IEEE Photonics Techonology Letters, Feb. 2004, pp. 545-547, vol. 16, No. 2, Research Center for Advanced Science and Techology, Univeristy of Tokyo, Tokyo, Japan.
K. Uchiyama, H. Takara, S. Kawanishi, T. Morioka, and M. Saruwatari, Ultrafast Polarisation-Independent All-Optical Switching Using a Polarisation Diversity Scheme In The Nonlinear Optical Loop Mirror, Electronics Letters, Sep. 1992, pp. 1864-1866, vol. 28, No. 20.
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