Optical devices engaged to fibers with angle-polished facets

Optical waveguides – With optical coupler – Input/output coupler

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C385S016000, C385S018000, C385S093000

Reexamination Certificate

active

06654517

ABSTRACT:

BACKGROUND
This application relates to optical fibers and fiber devices, and more specifically, to devices coupled to fibers with angle-polished facets.
Optical fibers are widely used in transmission and delivery of optical signals from one location to another in a variety of optical devices and systems. A typical fiber includes a high-index fiber core and a low-index cladding layer surrounding the fiber core to form an optical waveguide and to guide the optical energy along the fiber core. Such a fiber may be used to carry an optical signal at a single wavelength or multiple optical signals at different wavelengths.
The end facet of a fiber may be fabricated in two different configurations. In one configuration, the end facet is substantially perpendicular to the fiber core. An optical signal propagating along the fiber core, when exiting such an end facet, usually does not significantly deviates from the longitudinal direction of the fiber core. However, the end facet can cause optical reflection which may adversely interfere with the optical signals or affect a device that receives such reflection. To mitigate this problem, the end facet may be polished to form an acute angle with respect to the longitudinal direction of the fiber core. This angle-polished facet still reflects light but at a direction different from the optical signals along the fiber core. Hence, the reflected light generally does not interfere with a signal along the fiber core.
SUMMARY
The devices of the present disclosure are designed in part to couple with one or more fibers that are angle-polished to reduce the adverse effects of optical reflection. Each fiber is mounted so that the longitudinal direction of the fiber core forms an angle with respect to an optical axis of a device along which an optical beam is coupled to or from the angle-polished end facet of the fiber.


REFERENCES:
patent: 5074682 (1991-12-01), Uno et al.
patent: 5875271 (1999-02-01), Laughlin
patent: 5883748 (1999-03-01), Shum
patent: 6097860 (2000-08-01), Laor
patent: 6179483 (2001-01-01), Kanazawa
patent: 6192174 (2001-02-01), Lee
patent: 6364543 (2002-04-01), Fairchild
patent: 2002/0051603 (2002-05-01), Hajjar et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Optical devices engaged to fibers with angle-polished facets does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical devices engaged to fibers with angle-polished facets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical devices engaged to fibers with angle-polished facets will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3152715

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.