Modal and modulation characteristics of multimode VCSELs under external feedback for very short reach communications

Author

Gross, Y. ; Lasri, J. ; Orenstein, M.

Author_Institution

Dept. of Electr. Eng., Technion-Israel Inst. of Technol., Haifa, Israel

Volume

2

fYear

2000

fDate

2000

Firstpage

890

Abstract

We report the characteristics of VCSELs while experiencing optical feedback i.e. due to an unisolated coupling to multimode fibers. The experiments and modeling with controlled feedback resulted in a span of phenomena - starting from modified CW lasing, distorted modal distribution as well as flattened small signal modulation response. The connection between the results and the internal laser parameters, especially the nonlinearity, are examined

Keywords

electro-optical modulation; frequency response; laser feedback; laser modes; optical transmitters; semiconductor lasers; surface emitting lasers; 1 to 10 Gbit/s; controlled feedback; distorted modal distribution; external feedback; flattened small signal modulation response; internal laser parameters; modal characteristics; modified CW lasing; modulation characteristics; multimode VCSEL; nonlinearity; optical communication; optical feedback; optical transmitters; unisolated multimode fiber coupling; very short reach communications; Distributed feedback devices; Fiber lasers; Frequency; Laser feedback; Laser noise; Laser theory; Optical distortion; Optical feedback; Polarization; Vertical cavity surface emitting lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Society 2000 Annual Meeting. LEOS 2000. 13th Annual Meeting. IEEE

Conference_Location

Rio Grande

ISSN

1092-8081

Print_ISBN

0-7803-5947-X

Type

conf

DOI

10.1109/LEOS.2000.894141

Filename

894141