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Experimental study of silicon‐based microwave switches optically driven by LEDs
Author(s) -
Zhao Deshuang,
Han Yifei,
Zhang Qiaoli,
Wang BingZhong
Publication year - 2015
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.29435
Subject(s) - light emitting diode , microwave , optoelectronics , diode , laser , materials science , bandwidth (computing) , silicon , electrical engineering , engineering , optics , physics , telecommunications
The feasibility of utilizing small‐size low‐cost commercial light‐emitting diodes (LEDs) to drive the optically controlled microwave switches (OCMS) is experimentally investigated. A series of experiments are performed within 0.5–5 GHz bandwidth by utilizing six kinds of LEDs and a 980 nm‐laser to drive the OCMS. The results show that white, red, and violet LEDs are three competitive candidates to replace high‐cost lasers as the controller of OCMS if their power density impinging on the silicon dice of the OCMS could be increased up to 100m W / m m 2. Additionally, the reason leading to high insertion loss of the OCMS driven by the LEDs is revealed. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:2768–2774, 2015