Multichannel stabilization of an integrated WDM laser transmitter through correlation feedback

Author

Giles, C.R. ; Zirngibl, M.

Author_Institution

Lucent Technol., AT&T Bell Labs., Holmdel, NJ, USA

Volume

10

Issue

1

fYear

1998

Firstpage

150

Lastpage

152

Abstract

The output optical signal power in each channel of an integrated multifrequency laser can be estimated by correlating the total laser output signal with channel data using an optical receiver and an RF mixer. This correlation signal was used in a feedback loop to equalize and stabilize an eight-channel 50-Mb/s 1550-nm wavelength-division multiplexed (WDM) multifrequency laser. The method also works with broadcast data by introducing relative time delays between the channels to decorrelate their data.

Keywords

delays; laser feedback; laser stability; laser transitions; optical correlation; optical receivers; optical transmitters; semiconductor lasers; wavelength division multiplexing; 1550 nm; 50 Mbit/s; RF mixer; WDM multifrequency laser optical equalisation; broadcast data; channel data; correlation feedback; correlation signal; decorrelate; feedback loop; integrated WDM laser transmitter; integrated multifrequency laser; multichannel stabilization; optical correlation; optical receiver; output optical signal power; relative time delays; total laser output signal; wavelength-division multiplexed; Integrated optics; Laser feedback; Laser stability; Optical feedback; Optical receivers; Optical transmitters; Power lasers; RF signals; Radio frequency; Wavelength division multiplexing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.651144

Filename

651144