An 8-channel digitally tunable transmitter with electroabsorption modulated output by selective-area epitaxy

Author

Joyner, C.H. ; Zirngibl, M. ; Centanni, J.C.

Author_Institution

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

Volume

7

Issue

9

fYear

1995

Firstpage

1013

Lastpage

1015

Abstract

We demonstrate an 8-frequency digitally tunable laser based on a waveguide grating router with an electroabsorption modulated output. The laser wavelengths range from 1.567 to 1.580 μm with channel spacings of 200 GHz (1.6 nm). The modulator extinction is -10 dB/VN with a -5-V bias. A unique output coupler design delivers an ASE noise suppression of -55 dB//spl Aring/.

Keywords

diffraction gratings; electro-optical modulation; electroabsorption; laser tuning; optical couplers; optical noise; optical transmitters; superradiance; wavelength division multiplexing; 1.567 to 1.580 mum; 5 V; 8-channel digitally tunable transmitter; 8-frequency digitally tunable laser; ASE noise suppression; channel spacings; electroabsorption modulated output; laser wavelengths; modulator extinction; optical transmitters; output coupler design; selective-area epitaxy; waveguide grating router; Arm; Channel spacing; Digital modulation; Epitaxial growth; Fiber lasers; Gratings; Optical coupling; Optical design; Transmitters; Waveguide lasers;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.414686

Filename

414686