Waveguide arrays and spectral filtering for multi-frequency mode-locked pulse sources

Edward Farnum, Brandon G. Bale, J. Nathan Kutz

Research output: Chapter in Book/Published conference outputConference publication

Abstract

Current optical fiber-communication networks increasingly rely on wavelength-division multiplexing (WDM) technologies in conjunction with optical time-division multiplexing (OTDM) of individual WDM channels. The combination of high-repetition-rate data streams with a large number of WDM channels has pushed transmission rates to nearly 1 TB/s, creating a demand for all-optical transmission sources that can generate pico-second modelocked pulses at various wavelengths. Through nonlinear mode-coupling in a wave-guide array and a periodically applied multi-notch frequency filter, robust multi-frequency mode-locking can be achieved in a laser cavity in both the normal and anomalous dispersion regimes. We develop a theoretical description of this multiplewavelength mode-locking, and characterize the mode-locked solutions and their stability for an arbitrary number of frequency channels. The theoretical investigations demonstrate that the stability of the mode-locked pulse solutions of multiple frequency channels depends on the degree of inhomogenity in gain saturation. Specifically, only a small amount of inhomogeneous gain-broadening is needed for multi-frequency operation in the laser. In this presentation, the conditions on the system parameters necessary for generating stable mode-locking is explored for arbitrary number of frequency channels. The model suggests a promising source for multi-frequency photonic applications.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSPIE
Volume7386
ISBN (Print)9780819476685
DOIs
Publication statusPublished - 20 Nov 2009
EventPhotonics North 2009 - Laval, QC, United Kingdom
Duration: 24 May 200927 May 2009

Conference

ConferencePhotonics North 2009
CountryUnited Kingdom
CityLaval, QC
Period24/05/0927/05/09

Bibliographical note

Copyright 2009 SPIE. One print or electronic copy may be made for personal use only. Systematic reproduction, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

Keywords

  • Mode-locked lasers
  • Waveguide arrays
  • Wavelength-division multiplexing

Fingerprint

Dive into the research topics of 'Waveguide arrays and spectral filtering for multi-frequency mode-locked pulse sources'. Together they form a unique fingerprint.

Cite this