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Proceedings Paper

Waveguide heterojunction phototransistors for the analog fiber optic link and signal processing applications
Author(s): Dong-Soo Shin; Hao Jiang; Chen Kuo Sun; Wei-Xi Chen; J. T. Zhu; Stephen A. Pappert; Paul K. L. Yu
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Paper Abstract

Waveguide npin heterojunction phototransistors (HPTs) are investigated for analog fiber-optic link applications. The device is fabricated on a semi-insulating InP substrate with an integrated CPW transmission line. At low optical power, an incremental DC responsivity of approximately 16 A/W is observed at 1.3 micrometers wavelength. It is demonstrated that the HPT responsivity at RF frequencies can be increased through a second optical beam. Signal mixing experiment using two RF-modulated optical beams shows that the waveguide npin HPT can be used as an effective integrated photodetector/mixer for RF signal up- and down-conversion.

Paper Details

Date Published: 30 April 1999
PDF: 5 pages
Proc. SPIE 3631, Optoelectronic Integrated Circuits and Packaging III, (30 April 1999); doi: 10.1117/12.348301
Show Author Affiliations
Dong-Soo Shin, Univ. of California/San Diego (United States)
Hao Jiang, Univ. of California/San Diego (United States)
Chen Kuo Sun, Space and Naval Warfare Systems Command Ctr., San Diego (United States)
Wei-Xi Chen, Univ. of California/San Diego (United States)
J. T. Zhu, Univ. of California/San Diego (United States)
Stephen A. Pappert, Space and Naval Warfare Systems Command Ctr., San Diego (United States)
Paul K. L. Yu, Univ. of California/San Diego (United States)


Published in SPIE Proceedings Vol. 3631:
Optoelectronic Integrated Circuits and Packaging III
Michael R. Feldman; Michael R. Feldman; James G. Grote; Mary K. Hibbs-Brenner, Editor(s)

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