DocumentCode :
1352930
Title :
A novel monolithic distributed traveling-wave photodetector with parallel optical feed
Author :
Murthy, Sanjeev ; Jung, Thomas ; Chau, Tai ; Wu, Ming C. ; Sivco, Deborah L. ; Cho, Alfred Y.
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
Volume :
12
Issue :
6
fYear :
2000
fDate :
6/1/2000 12:00:00 AM
Firstpage :
681
Lastpage :
683
Abstract :
We report on a novel monolithic distributed traveling wave photodetector with parallel optical feed to an array of individual photodiodes using an integrated multimode interference (MMI) coupler to attain high saturation current. The parallel optical feed reduces the maximum photocurrent and photocurrent density seen by any single photodiode, thus increasing the maximum linear photocurrent of the detector. We have successfully fabricated a device with a maximum linear photocurrent of 20 mA and a responsivity of 0.13 A/W.
Keywords :
integrated optoelectronics; metal-semiconductor-metal structures; optical arrays; optical beam splitters; optical design techniques; optical fabrication; photodetectors; photodiodes; 20 mA; InGaAs-InAlAs-InP; high saturation current; integrated multimode interference coupler; maximum linear photocurrent; monolithic distributed traveling-wave photodetector; parallel optical feed; photocurrent density; photodiode array; responsivity; single photodiode; Detectors; Feeds; High speed optical techniques; Interference; Optical saturation; Optical waveguides; Photoconductivity; Photodetectors; Photodiodes; Radio frequency;
fLanguage :
English
Journal_Title :
Photonics Technology Letters, IEEE
Publisher :
ieee
ISSN :
1041-1135
Type :
jour
DOI :
10.1109/68.849083
Filename :
849083
Link To Document :
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