Digitally tunable channel dropping filter/equalizer based on waveguide grating router and optical amplifier integration

Author

Zirngibl, M. ; Joyner, C.H. ; Glance, B.

Author_Institution

Crawford Hill Lab., AT&T Bell Labs., Holmdel, NJ, USA

Volume

6

Issue

4

fYear

1994

fDate

4/1/1994 12:00:00 AM

Firstpage

513

Lastpage

515

Abstract

We demonstrate a novel and powerful device that permits individual and simultaneous control of all the wavelength channels in a WDM system. The device is based on the monolithic integration of two identical waveguide grating routers with semiconductor optical amplifiers. By biasing appropriately the individual amplifier, each WDM channel can be amplified, detected or modulated. The device exhibits a channel bandwidth of 60 GHz, a channel spacing of 195 GHz and a crosstalk of /spl minus/19 dB.<>

Keywords

diffraction gratings; integrated optics; integrated optoelectronics; laser tuning; optical communication equipment; optical filters; optical waveguides; semiconductor lasers; wavelength division multiplexing; 60 GHz; WDM system; channel bandwidth; crosstalk; digitally tunable channel dropping filter/equalizer; identical waveguide grating routers; monolithic integration; optical amplifier integration; semiconductor optical amplifiers; simultaneous control; waveguide grating router; wavelength channels; Control systems; Digital filters; Equalizers; Gratings; Monolithic integrated circuits; Optical filters; Optical waveguides; Semiconductor optical amplifiers; Semiconductor waveguides; Wavelength division multiplexing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.281812

Filename

281812