Optical non-linear branching element

Details Optical non-linear branching element Optical non-linear branching element

1997-07-14

1999-03-02

Lee, John D.

Optical waveguides

Having nonlinear property

385 42, 385 45, G02B 626

Patent

active

058781811

ABSTRACT:
A low-loss optical 1.times.2 branching element comprises a symmetrical Y junction (4) with identical branches (4.1, 4.2) and an asymmetric Y junction (5) with different branches (5.1, 5.2). The Y junctions are coupled by means of a common trunk (6) in which two modes that are of unequal mode order can propagate. Located centrally in and/or near the trunk are optically non-linear partial areas (7, 7a, 7b). The non-linear partial areas (7 and/or 7a, 7b) and the asymmetric Y junction (5) are dimensioned so that, for a given signal power, in one signal direction (arrow D) the branching element acts as a 3 dB splitter, whereas in the other signal direction (arrow U) the loss is <<3 dB.

REFERENCES:
patent: 4674827 (1987-06-01), Izutsu et al.
patent: 5315422 (1994-05-01), Utaka et al.
J. Chen et al; "Adiabatic Polymer-Glass-Waveguide All-Optical Switch"; Jun. 1, 1994; pp. 3375-3383; Applied Optics; vol. 33, No. 16.
S. Chi et al Electronics Letters, Mar. 1, 1990, vol. 26, No. 5, "Non-Linear Y-Junction Coupler" pp. 339-354.
J. Chen et al; "Two-mode Interferometric Polymer-Glass-Wave-guide All-Optical Switches"; pp. 201-208; Optics Communications, Apr. 15, 1993.
H. Fouckhardt et al; "All-Optical Switching in Waveguide X Junctions"; May 1990; pp. 803-809; Journal of the Optical Society; No. 5.
S. Shi et al; Multi-quantum-well Zero-gap Directional Coupler With Disordered Branching Waveguides; Jan. 2, 1995; pp. 79-81; Appl. Phys. Lett; vol. 66, No. 1.
G. Krijnen et al; "Simulation of Low Insertion Loss Nonlinear Y-Junctions"; Nov. 15, 1990; Sensors & Actuators (Optical Transducers), Proceedings S&A Symposium Of The University Of Twente, Enschede.
H. Fouckhardt et al; "All-Optical Switching in Waveguide X-Junctions"; May 1990; pp. 803-809; Journal Of The Optical Society Of America; vol. 7, No. 5.

Affiliated with

Also associated with

Rating

Optical non-linear branching element 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 non-linear branching element, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical non-linear branching element will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-430285