High-power high-speed photodetectors-design, analysis, and experimental demonstration

Author

Lin, L.Y. ; Wu, M.C. ; Itoh, T. ; Vang, T.A. ; Muller, R.E. ; Sivco, D.L. ; Cho, A.Y.

Author_Institution

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

Volume

45

Issue

8

fYear

1997

fDate

8/1/1997 12:00:00 AM

Firstpage

1320

Lastpage

1331

Abstract

A novel velocity-matched distributed photodetector (VMDP) is proposed to simultaneously achieve high saturation photocurrent and broad bandwidth. Theoretical analysis on the tradeoff between saturation power and bandwidth shows that the VMDP offers fundamental advantages over conventional photodetectors. A comprehensive theoretical model has been developed for the design and simulation of the VMDP. Experimentally, the VMDP with very high saturation (56-mA) photocurrent and instrument-limited 3-dB bandwidth (49 GHz) has been demonstrated. The theoretical analysis and experimental results show that the VMDP is very attractive for high-performance microwave photonic links and high-power optical microwave applications

Keywords

metal-semiconductor-metal structures; microwave generation; optical fibre communication; optical links; photodetectors; photodiodes; 49 GHz; 56 mA; MSM photodiodes; VMDP; bandwidth; coplanar transmission lines; high-speed photodetectors; instrument-limited 3-dB bandwidth; microwave photonic links; optical microwave applications; saturation photocurrent; saturation power; velocity-matched distributed photodetector; Bandwidth; High speed optical techniques; Microwave devices; Optical fiber cables; Optical receivers; Optical saturation; Optical waveguides; Photoconductivity; Photodetectors; Photodiodes;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.618430

Filename

618430