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Title: Wavelength-conserving grating router for intermediate wavelength density

Abstract

A wavelength router to be used for fiber optical networking router is based on a diffraction grating which utilizes only N wavelengths to interconnect N inputs to N outputs. The basic approach is to augment the grating with additional couplers or wavelength selective elements so than N-1 of the 2N-1 outputs are combined with other N outputs (leaving only N outputs). One embodiment uses directional couplers as combiners. Another embodiment uses wavelength-selective couplers. Another embodiment uses a pair of diffraction gratings to maintain parallel propagation of all optical beams. Also, beam combining can be implemented either by using retroflection back through the grating pair or by using couplers.

Inventors:
; ; ;
Publication Date:
Research Org.:
The Regents of the University of California, Oakland, CA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1176162
Patent Number(s):
7,194,161
Application Number:
09/609,178
Assignee:
The Regents of the University of California (Oakland, CA) OSTI
DOE Contract Number:
W-7405-ENG48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 99 GENERAL AND MISCELLANEOUS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats

Deri, Robert J., Patel, Rajesh R., Bond, Steven W., and Bennett, Cory V. Wavelength-conserving grating router for intermediate wavelength density. United States: N. p., 2007. Web.
Deri, Robert J., Patel, Rajesh R., Bond, Steven W., & Bennett, Cory V. Wavelength-conserving grating router for intermediate wavelength density. United States.
Deri, Robert J., Patel, Rajesh R., Bond, Steven W., and Bennett, Cory V. Tue . "Wavelength-conserving grating router for intermediate wavelength density". United States. doi:. https://www.osti.gov/servlets/purl/1176162.
@article{osti_1176162,
title = {Wavelength-conserving grating router for intermediate wavelength density},
author = {Deri, Robert J. and Patel, Rajesh R. and Bond, Steven W. and Bennett, Cory V.},
abstractNote = {A wavelength router to be used for fiber optical networking router is based on a diffraction grating which utilizes only N wavelengths to interconnect N inputs to N outputs. The basic approach is to augment the grating with additional couplers or wavelength selective elements so than N-1 of the 2N-1 outputs are combined with other N outputs (leaving only N outputs). One embodiment uses directional couplers as combiners. Another embodiment uses wavelength-selective couplers. Another embodiment uses a pair of diffraction gratings to maintain parallel propagation of all optical beams. Also, beam combining can be implemented either by using retroflection back through the grating pair or by using couplers.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 20 00:00:00 EDT 2007},
month = {Tue Mar 20 00:00:00 EDT 2007}
}

Patent:

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