Optical fiber having enhanced separation of higher-order modes

Details Optical fiber having enhanced separation of higher-order modes Optical fiber having enhanced separation of higher-order modes

2006-09-19

2006-09-19

Ullah, Akm Enayet (Department: 2874)

Optical waveguides

Optical fiber waveguide with cladding

Utilizing multiple core or cladding

C385S028000, C385S037000, C385S127000

Reexamination Certificate

active

07110651

ABSTRACT:
A new annular-core optical fiber is useful, inter alia, for stabilizing the behavior of an optical attenuator based on a Long Period Grating (LPG) against fluctuations in the polarization of the fundamental optical signal. The fiber dimensions and Δn are selected such that when a LPG of some period is used to couple fundamental-mode radiation in the fiber into higher-order modes, the wavelength of peak coupling into an HE mode is removed by at least 30 nm from the wavelength of peak coupling into the nearer of a TE mode or a TM mode.

REFERENCES:
patent: 6625364 (2003-09-01), Johnson et al.
patent: 6711334 (2004-03-01), Szkopek et al.
Yun, S.H., et al., “Dynamic Erbium-Doped Fiber Amplifier Based on Active Gain Flattening with Fiber Acoustooptic Tunable Filters,”IEEE Photonics Technology Letters, vol. 11, No. 10, pp. 1229-1231, Oct. 1999.
Dimmick, T.E., et al., “Compact All-Fiber Acoustooptic Tunable Filters with Small Bandwidth-Length Product,”IEEE Photonics Technology Letters, vol. 12, O. 9, pp. 1210-1212, Sep. 2000.
Poole, C.D., et al., “Helical-Grating Two-Mode Fiber Spatial-Mode Coupler,”Journal of Lightwave Technology, vol. 9, No. 5, pp. 598-604, May 1991.

Affiliated with

Also associated with

Rating

Optical fiber having enhanced separation of higher-order modes 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 fiber having enhanced separation of higher-order modes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical fiber having enhanced separation of higher-order modes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3567269