Wavelength tunable optical filter

Details Wavelength tunable optical filter Wavelength tunable optical filter

2007-04-24

2007-04-24

Font, Frank G. (Department: 2883)

Optical waveguides

With optical coupler

Plural

C385S088000, C359S577000, C359S578000, C359S579000, C359S580000, C359S581000, C359S582000, C359S583000, C359S584000, C359S585000, C359S586000, C359S587000, C359S588000, C359S589000, C359S590000

Reexamination Certificate

active

10923838

ABSTRACT:
Provided is a Fabry-Perot type wavelength tunable optical filter, comprising a first mirror; a second mirror located over the first mirror; a driving body located over the first mirror, and having both ends fixed to the first mirror through a spacer; a plurality of electrodes, each formed on both ends of the driving body; a rod structure connecting a center of the driving body and the second mirror; a plurality of fixing means, each fixed to the first mirror at both sides of the rod structure through the spacer; and a plurality of elastic bodies connecting the rod structure with the plurality of fixing means and acting as a rotational axis. And the mirror is driven by the rod structure acting as a lever that has an elastic body as a rotational axis, when warping is generated by electro-thermal expansion, electromagnetic force or external force. Thereby the mirror can be driven in the larger wavelength tunable range and the low power consumption.

REFERENCES:
patent: 6198565 (2001-03-01), Iseki et al.
patent: 6341039 (2002-01-01), Flanders et al.
patent: 6373632 (2002-04-01), Flanders
patent: 6400738 (2002-06-01), Tucker et al.
patent: 6833957 (2004-12-01), Sato
patent: 2002/0167730 (2002-11-01), Needham et al.
patent: 2003/0012231 (2003-01-01), Tayebati et al.
patent: 2004/0223881 (2004-11-01), Cunningham et al.
patent: 2004/0228575 (2004-11-01), Kim et al.
patent: 2005/0157392 (2005-07-01), Choi et al.
patent: 1020040097460 (2004-11-01), None
Mateus et al.; “Widely Tunable Torsional Optical Filter”; IEEE Photonics Technology Letters; Jun. 2002; pp. 819-821.
Riemenschneider et al.; “Low-Cost Electrothermally Tunable Optical Microcavities Based on GaAs”; IEEE Photonics Technology Letters; Nov. 2002; pp. 1566-1568.
Yokouchi et al.; “40 Å Continuous Tuning of a GalnAsP/InP Vertical-Cavity Surface-Emitting Laser Using an External Mirror:”; IEEE Photonics Technology Letters; Jul. 1992; pp. 701-703.
Kim et al.; “47 nm Tuning of Thermally Actuated Fabry-Perot Tunable Filter with Very Low Power Consumption”; ETRI; 2 pages.
Chang-Hasnain et al.; “Tunable VCSEL”; IEEE Photonics Technology Letters; Nov./Dec. 2000; pp. 978-987.

Affiliated with

Also associated with

Rating

Wavelength tunable optical filter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Wavelength tunable optical filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wavelength tunable optical filter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3743105