Fiber-optic filter with tunable grating

Details Fiber-optic filter with tunable grating Fiber-optic filter with tunable grating

2006-11-07

2006-11-07

Font, Frank G. (Department: 2883)

Optical waveguides

Optical waveguide sensor

Including physical deformation or movement of waveguide

C385S006000, C385S037000

Reexamination Certificate

active

07133582

ABSTRACT:
A tunable optical fiber has a grating which is attached to an expander responsive to an external control including a temperature or a magnetic field. The expander changes length, and this is coupled to the optical fiber, which changes pitch, thereby accomplishing a tuning change. The expander may be coupled to the grating directly, or through an expansion reducer, which produces a greater range of tuning. Terfenol-D™ may be used for the expander material, and tubes which include a bonding point adjacent to the extents of the grating may form the extent reducers.

REFERENCES:
patent: 4268116 (1981-05-01), Schmadel et al.
patent: 4622663 (1986-11-01), Ishikawa et al.
patent: 4986623 (1991-01-01), Sorin
patent: 5237576 (1993-08-01), DiGiovanni et al.
patent: 5357097 (1994-10-01), Shiozawa
patent: 6011881 (2000-01-01), Moslehi et al.
patent: 6275629 (2001-08-01), Eggleton et al.
patent: 6299703 (2001-10-01), Chen et al.
patent: 6366721 (2002-04-01), Hu et al.
patent: 6411746 (2002-06-01), Chamberlain
patent: 6453108 (2002-09-01), Sirkis
patent: 6594410 (2003-07-01), Kersey et al.
patent: 6597822 (2003-07-01), Moslehi et al.
Sorin & Shaw, “A Single Mode Fiber Evanescent Grating Reflector” Journal of Lightwave Technology LT-3: 1041-1045 (1985).
web page—TERFENOL-D http://www.extrema-usa.com/products/terfenol.
web page Magnetostriction http://www.extrema-usa.com/core.

Affiliated with

Also associated with

Rating

Fiber-optic filter with tunable grating does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3669429