Distributed balanced photodetectors for high-performance RF photonic links

Author

Islam, M. Saiful ; Tai Chan ; Nespola, Antonino ; Mathai, Sagi ; Rollinger, Andrew R. ; Deal, William R. ; Itoh, Tatsuo ; Wu, Ming C. ; Sivco, Deborah L. ; Cho, Alfred Y.

Author_Institution

Dept. of Electr. Eng., California State Univ., Los Angeles, CA, USA

Volume

11

Issue

4

fYear

1999

fDate

4/1/1999 12:00:00 AM

Firstpage

457

Lastpage

459

Abstract

A novel velocity-matched distributed balanced photodetector with a 50-/spl Omega/ coplanar waveguide output transmission line has been experimentally demonstrated in the InP-InGaAs material system. Distributed absorption and velocity matching are employed to achieve high-saturation photocurrent. A common mode rejection ratio of 27 dB has been achieved. The RF link experiment conducted at 6.48 GHz shows that the laser intensity noise has been suppressed by more than 17 dB.

Keywords

III-V semiconductors; coplanar waveguides; gallium arsenide; indium compounds; optical planar waveguides; optical receivers; photodetectors; 50 ohm; 6.48 GHz; InP-InGaAs; InP-InGaAs material system; RF link experiment; common mode rejection ratio; coplanar waveguide output transmission line; distributed absorption; distributed balanced photodetectors; high-performance RF photonic links; high-saturation photocurrent; laser intensity noise; velocity matching; velocity-matched distributed balanced photodetector; Absorption; Conducting materials; Coplanar transmission lines; Coplanar waveguides; Laser modes; Laser noise; Optical materials; Photoconductivity; Photodetectors; Radio frequency;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.752547

Filename

752547