Optical steering element and method

Details Optical steering element and method Optical steering element and method

2007-07-03

2007-07-03

Pak, Sung (Department: 2874)

Optical waveguides

With optical coupler

Switch

C385S022000

Reexamination Certificate

active

10918572

ABSTRACT:
A 1×N wavelength selective switch which can function as a dynamic channel equalizer when N=1. In an exemplary arrangement, the present invention is a free-space device that includes a linear array of micromachined reflective elements for beam steering of individual wavelength channels. In at least some embodiments the array of reflective elements of the present invention provides a substantially seamless design such that the optical spectrum appears flat across the transition between actuators. Various embodiments provide high channel bandwidth with flat-top channel performance, low polarization dependence loss, low vibration sensitivity, extinction ratios greater than 40 dB over all temperatures, and very low levels of electrical and optical channel cross-talk.

REFERENCES:
patent: 6721473 (2004-04-01), Islam et al.
patent: 7110635 (2006-09-01), Miller et al.
patent: 2001/0051014 (2001-12-01), Behin et al.
patent: 2005/0117837 (2005-06-01), Cerato

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