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http://dx.doi.org/10.3807/KJOP.2002.13.2.146

Optical thyristor operating at 1.55 μm  

Kim, Doo-Gun (Optical Interconnection Lab, Chung-Ang University)
Kim, Hyung-Soo (Optical Interconnection Lab, Chung-Ang University)
Jung, Sung-Jae (Optical Interconnection Lab, Chung-Ang University)
Choi, Young-Wan (Optical Interconnection Lab, Chung-Ang University)
Lee, Seok (Photonics Research Center, Korea Institute of Science and Technology)
Woo, Deok-Ha (Photonics Research Center, Korea Institute of Science and Technology)
Jhon, Young-Min (Photonics Research Center, Korea Institute of Science and Technology)
Yu, Byung-Geel (General Studies, Hankuk Aviation University)
Publication Information
Korean Journal of Optics and Photonics / v.13, no.2, 2002 , pp. 146-150 More about this Journal
Abstract
1.55${\mu}{\textrm}{m}$ PnpN optical thyristor as a smart optical switch has potential applications in advanced optical communication systems. PnpP optical thyristors operating at 1.55${\mu}{\textrm}{m}$ are proposed and fabricated for the first time. In the optical thyristors, we employ InGaAs/InP multiple quantum well (MQW) for the active n- and p-layers. The thyristors show sufficiently nonlinear s-shape I-V characteristics and spontaneous emission. In the OFF-state, the device has a high-impedance up to switching voltage of 4.03(V). On the other hand, it has low-impedance and emits spontaneous light as a light-emitting diode in the ON-state voltage of 1.77(V), and switching voltage is changed under several light input conditions. It can be used as a header processor in optical asynchronous transfer mode (ATM), as a hard limiter in optical code division multiple access (CDMA) and as a wavelength converter in optical WDM systems.
Keywords
Optical thyristor;
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