Optical waveguide system comprising a mode coupling grating and

Details Optical waveguide system comprising a mode coupling grating and Optical waveguide system comprising a mode coupling grating and

1996-09-12

1998-02-10

Ngo, John

Optical waveguides

With optical coupler

Input/output coupler

385 24, 385 29, G02B 626

Patent

active

057177988

ABSTRACT:
The optical waveguide system comprises a mode discriminating coupler and reflective mode coupling means. These components can be combined in a variety of ways to perform a variety of functions. Among them are drop multiplex devices, add multiplex devices, add/drop multiplex devices, and power combiners. The device combinations can have low loss as well as high reliability, the latter due to the robust structure of the devices.

REFERENCES:
patent: 4828350 (1989-05-01), Kim et al.
patent: 4986624 (1991-01-01), Sorin et al.
patent: 5216739 (1993-06-01), Hill et al.
patent: 5473714 (1995-12-01), Vengsarkar
"Calculation of Modes in an Optical Fiber Using the Finite Element Method and EISPACK", by T.A. Lenahan, Bell System Technical Journal, vol. 62, No. 9, Part 1, Nov. 1983, pp. 2663-2694.

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