Remodulation and filtering of WDM channels using the optical injection locking technique

Author

Bordonalli, Aldário C. ; Guimaraes, J.A. ; Benitez, Jeferson L. ; Conforti, Evandro ; Gallep, Cristiano M.

Author_Institution

Dept. of Microwave & Opt., State Univ. of Campinas, Brazil

Volume

1

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

541

Abstract

The utilization of the optical injection locking technique in WDM receivers is investigated. As the locking bandwidth is controlled by the amount of injected optical power, only the WDM carrier within a given locking range induces the locking of the slave semiconductor laser and is properly transmitted. In addition, by using a feed-forward laser current approach along with the injection process, the remodulation and/or reshaping of the selected channel information can be performed. It was experimentally observed that feed-forward semiconductor lasers under injection locking have the potential to be used as optical filters, offering up to 40 dB extinction ratio, and remodulators, for 940 Mb/s optical channels.

Keywords

feedforward; optical filters; optical pulse compression; optical receivers; semiconductor lasers; wavelength division multiplexing; 940 Mbit/s; WDM channels; WDM receivers; channel information; extinction ratio; feed-forward laser current; injected optical power; locking bandwidth; optical filters; optical injection locking technique; remodulators; slave semiconductor laser; Bandwidth; Feedforward systems; Filtering; Injection-locked oscillators; Optical control; Optical filters; Optical receivers; Power lasers; Semiconductor lasers; Wavelength division multiplexing;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Optoelectronics Conference, 2001. IMOC 2001.Proceedings of the 2001 SBMO/IEEE MTT-S International

Print_ISBN

0-7803-7065-1

Type

conf

DOI

10.1109/SBMOMO.2001.1008822

Filename

1008822