Tunable optical integrated element using liquid crystal as...

Details Tunable optical integrated element using liquid crystal as... Tunable optical integrated element using liquid crystal as...

2007-04-24

2007-04-24

Schechter, Andrew (Department: 2871)

Liquid crystal cells, elements and systems

Liquid crystal optical element

Beam dividing switch formed from liquid crystal cell

C349S201000, C385S037000, C359S318000, C359S366000

Reexamination Certificate

active

10940664

ABSTRACT:
The present invention discloses a tunable optical integrated element using liquid crystal as an active layer, which is applied to filters, couplers or optical add/drop multiplexer. The present invention includes a layer of liquid crystal as an active layer, a first waveguide with grating and a second waveguide, an isolation layer, a pair of electrodes. By applying the external voltage to control the direction of the liquid crystal, the refractive index of the waveguide changes in accordance with the modulation of the electric field. Thus invention has the features of simple structure, easy assembling, lower cost and integrating ability.

REFERENCES:
patent: 4095869 (1978-06-01), Reichelt et al.
patent: 4251137 (1981-02-01), Knop et al.
patent: 5299289 (1994-03-01), Omae et al.
patent: 5467204 (1995-11-01), Hatano et al.
patent: 5496670 (1996-03-01), Hvilsted et al.
patent: 6014197 (2000-01-01), Hikmet
patent: 6215928 (2001-04-01), Friesem et al.
patent: 6271966 (2001-08-01), Tanabe et al.
patent: 6522382 (2003-02-01), Rudin
patent: 6999156 (2006-02-01), Chou et al.

Affiliated with

Also associated with

Rating

Tunable optical integrated element using liquid crystal as... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tunable optical integrated element using liquid crystal as..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tunable optical integrated element using liquid crystal as... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3777022