Rare earth element-doped optical waveguide and process for produ

Details Rare earth element-doped optical waveguide and process for produ Rare earth element-doped optical waveguide and process for produ

1991-04-26

1993-04-27

Healy, Brian

Optical waveguides

Having particular optical characteristic modifying chemical...

Of waveguide core

385130, 385131, 385132, 385 14, 437 51, G02B 610, H01L 2170

Patent

active

052069257

ABSTRACT:
A core waveguide having a substantially rectangular cross section, with the width thereof greater than the thickness thereof, is provided in a cladding formed on a substrate, and a rare earth element-doped layer is provided in the core waveguide along the waveguiding direction of the waveguide. With the width of the core waveguide set greater than the thickness of the core waveguide, good optical confinement in the width direction of the waveguide is obtained, which enables light to be absorbed by the rare earth element-doped layer efficiently and concentratedly. It is thereby possible to achieve a marked improvement in the excitation efficiency of excitation power. Thus, an enhanced excitation efficiency is achieved with less addition of a rare earth element, and a high-gain optical amplification waveguide free of concentration extinction is provided.

REFERENCES:
patent: 4284663 (1981-08-01), Carruthers et al.
patent: 4637025 (1987-01-01), Snitzer et al.
patent: 4679892 (1987-07-01), Haisma et al.
patent: 4826288 (1989-05-01), Mansfield et al.
patent: 4901321 (1990-02-01), Blondeau et al.
patent: 4936650 (1990-06-01), Ainslie et al.
patent: 4946241 (1990-08-01), Krumme et al.
patent: 5039190 (1991-08-01), Blonder et al.
patent: 5107538 (1992-04-01), Benton et al.

Affiliated with

Also associated with

Rating

Rare earth element-doped optical waveguide and process for produ does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rare earth element-doped optical waveguide and process for produ, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rare earth element-doped optical waveguide and process for produ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2333868