Fiber optic coil cord

Details Fiber optic coil cord Fiber optic coil cord

1987-03-04

1989-08-01

Gonzalez, Frank

G02B 644

Patent

active

048529648

ABSTRACT:
A coiled fiber optic cable comprises an optical fiber of glass or plastic that is disposed loosely within a buffer tube. The buffer tube in turn is surrounded with a plastic strength member that is then jacketed in a thermoplastic cover. The assembled cable is wound on a mandrel in a closed helix and is heated to set the helical shape in the plastic member. After cooling, the spiral may be reverse wound to set the coiled configuration. The optical fiber may be single-mode or multimode and it may be graded-index clad or step-index clad. The coiled cable can be terminated to interconnect optical components. If the optical fiber is a single-mode fiber that is not treated to reduce internal reflections when it is bent, then the attenuation of the optical signal will be found to be an inverse function of the extension of the coiled cable. This makes it possible to use coiled single-mode fiber as an optical attenuator in a mechanical apparatus that supports the coiled fiber and provides repeatable positioning to obtain a predetermined value of optical attenuation.

REFERENCES:
patent: 4141622 (1979-02-01), Beal
patent: 4146302 (1979-03-01), Jachimowicz
patent: 4169657 (1979-10-01), Bedard
patent: 4255018 (1981-03-01), Ulrich et al.
patent: 4272155 (1981-06-01), Slaughter
patent: 4374608 (1983-03-01), Anderson
patent: 4422889 (1983-12-01), Trezeguet et al.
patent: 4450406 (1984-05-01), Bobb
patent: 4525818 (1985-06-01), Cielo et al.
patent: 4529262 (1985-07-01), Ashkin et al.
patent: 4552433 (1985-11-01), Titchmarsh
patent: 4553815 (1985-11-01), Martin
patent: 4564263 (1986-01-01), Ueba et al.
patent: 4568146 (1986-02-01), Ueba et al.
patent: 4572610 (1986-02-01), Krajewski
patent: 4577925 (1986-03-01), Winter et al.
patent: 4579420 (1986-04-01), Winter et al.
patent: 4580874 (1986-04-01), Winter et al.
patent: 4585306 (1986-04-01), Ohmori et al.
patent: 4609871 (1986-09-01), Bobb
Corguide Optical Waveguide Technical Report TR-53/Feb., 1986, "Polarization-Retaining Single-Mode Fiber With Improved Coil Performance", by P. E. Blaszyk, R. M. Hawl, and M. J. Marrone, (Corning Glass Works, Corning, N.Y.).
Corguide Optical Waveguide Technical Report TR-46/Jun. 1985, "Low-Loss Dispersion Shifted Single-Mode Fiber Manufactured by the OVD Process", by T. D. Croft, J. E. Ritter and V. A. Bhagavatula (Corning Glass Works, Corning, N.Y.).
Corguide Optical Waveguide Technical Report TR-47/Jun. 1985, "Bend Optimized Dispersion-Shifted Single Mode Designs", by V. A. Bhagavtula, J. E. Ritter and R. A. Modavis, (Corning Glass Works, Corning, N.Y.).
Corguide Optical Waveguide Product Information SMF/DS Optical Waveguide Corning Product 1524, Feb., 1986, (Corning Glass Works, Corning, N.Y.

Affiliated with

Also associated with

Rating

Fiber optic coil cord 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 coil cord, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fiber optic coil cord will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-127666