Waveguide heterojunction phototransistors for the analog fiber optic link and signal processing applications

Autor:	Stephen A. Pappert, J. T. Zhu, Dong-Soo Shin, Paul K. L. Yu, W.X. Chen, Hao Jiang, Chen Kuo Sun
Rok vydání:	1999
Předmět:	Optical fiber Materials science business.industry Photodetector Optical power Signal law.invention Photodiode Responsivity Optics law Modulation business Waveguide
Zdroj:	SPIE Proceedings.
ISSN:	0277-786X
DOI:	10.1117/12.348301
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::78618c4d3128c3b709a9c1ca3b048d21 https://doi.org/10.1117/12.348301 Zobrazit plný text záznamu