Fast and slow light enhancement using cascaded microring resonators with the Sagnac reflector

http://repository.vnu.edu.vn/handle/VNU_123/28881

A cascaded microring resonator based on silicon waveguides with an MMI (Multimode Interference) based Sagnac reflector is proposed in this study. 

By controlling the coupling coefficients with the used of the MMI based Sagnac reflector, the double of both pulse delay and advancement for the slow and fast light can be achieved.

The new structure can produce the fast and slow light phenomenon on one chip with a double of the time delay and pulse advancement.

By using the Sagnac reflector, the device is very compact. Transfer matrix method and FDTD (Finite Difference Time Domain) simulation are used to obtain the characteristics of the device.

The transmission, phase, group delay and pulse propagation are analyzed in detail. Our FDTD simulations show a good agreement with the analytical theory.

Title:	Fast and slow light enhancement using cascaded microring resonators with the Sagnac reflector
Authors:	Le Duy Tien Nguyen Manh Cuong Le Thanh Trung
Keywords:	Microring resonator fast light slow light silicon waveguides FDTD transfer matrix method multimode interference (MMI) microresonators
Issue Date:	2017
Publisher:	ELSEVIER GMBH, URBAN & FISCHER VERLAG, OFFICE JENA, P O BOX 100537, 07705 JENA, GERMANY
Citation:	ISIKNOWLEDGE
Abstract:	A cascaded microring resonator based on silicon waveguides with an MMI (Multimode Interference) based Sagnac reflector is proposed in this study. By controlling the coupling coefficients with the used of the MMI based Sagnac reflector, the double of both pulse delay and advancement for the slow and fast light can be achieved. The new structure can produce the fast and slow light phenomenon on one chip with a double of the time delay and pulse advancement. By using the Sagnac reflector, the device is very compact. Transfer matrix method and FDTD (Finite Difference Time Domain) simulation are used to obtain the characteristics of the device. The transmission, phase, group delay and pulse propagation are analyzed in detail. Our FDTD simulations show a good agreement with the analytical theory.
Description:	TNS07027 ; OPTIK Volume: 131 Pages: 292-301 Published: 2017
URI:	http://repository.vnu.edu.vn/handle/VNU_123/28881 http://www.sciencedirect.com/science/article/pii/S0030402616313560
ISSN:	0030-4026
Appears in Collections:	Bài báo của ĐHQGHN trong Web of Science