High bandwidth all-optical 3×3 switch based on multimode interference structures

Title:	High bandwidth all-optical 3×3 switch based on multimode interference structures
Authors:	Le, Duy Tien Nguyen, Manh Cuong Le, Trung Thanh
Keywords:	All-optical switches;Wavelength selective switches;MMI coupler;Nonlinear directional coupler;Nonlinear phase shifters
Issue Date:	2017
Publisher:	Elsevier B.V.
Series/Report no.:	;Optics Communications 387 (2017)
Abstract:	A high bandwidth all-optical 3×3 switch based on general interference multimode interference (GI-MMI) structure is proposed in this study. Two 3×3 multimode interference couplers are cascaded to realize an alloptical switch operating at both wavelengths of 1550 nm and 1310 nm. Two nonlinear directional couplers at two outer-arms of the structure are used as all-optical phase shifters to achieve all switching states and to control the switching states. Analytical expressions for switching operation using the transfer matrix method are presented. The beam propagation method (BPM) is used to design and optimize the whole structure. The optimal design of the all-optical phase shifters and 3×3 MMI couplers are carried out to reduce the switching power and loss
Description:	p. 148–152
URI:	http://repository.vnu.edu.vn/handle/VNU_123/60352
ISSN:	0030-4018
Appears in Collections:	IS - Papers