Proposal of all-optical wavelength-selective switching using waveguide-type Raman amplifiers and 3-dB couplers

Author

Kishikawa, Hiroki ; Goto, Nobuo

Author_Institution

Dept. of Inf. & Comput. Sci., Toyohashi Univ. of Technol., Japan

Volume

23

Issue

4

fYear

2005

fDate

4/1/2005 12:00:00 AM

Firstpage

1631

Lastpage

1636

Abstract

We propose a new optical switch that can enable wavelength-selective high-speed switching for applications to photonic wavelength-division multiplexing (WDM) Internet protocol (IP) packet routing. The switch utilizes characteristics of waveguide-type Raman amplifiers and 3-dB couplers, and so it operates all-optically at a few tens of picosecond or faster speed. The operation of the switch is studied by coupled-mode theory and is verified numerically using a beam-propagation method (BPM). As a result, we found that optical waves having arbitrary wavelengths among those of incident WDM waves are amplified and switched when the amplification rate of each waveguide-type Raman amplifier is set to the proper value by pump wave injection. Moreover, the dynamic range over 30 dB was also obtained from the simulation results of the switch.

Keywords

Internet; Raman lasers; coupled mode analysis; high-speed optical techniques; optical couplers; optical pumping; packet switching; photonic switching systems; protocols; semiconductor optical amplifiers; telecommunication network routing; waveguide lasers; wavelength division multiplexing; 3-dB couplers; Internet protocol packet routing; WDM waves; all-optical switching; amplification rate; beam-propagation method; coupled-mode theory; high-speed switching; optical switch; optical waves; photonic wavelength-division multiplexing; pump wave injection; waveguide-type Raman amplifiers; wavelength-selective switching; Couplers; Internet; Optical amplifiers; Optical packet switching; Optical switches; Optical waveguide theory; Optical waveguides; Proposals; Stimulated emission; Wavelength division multiplexing; 3-dB coupler; All-optical; Raman amplifier; finite-difference beam-propagation method (FD-BPM); optical switch; waveguide; wavelength-selective;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2005.843838

Filename

1424139