A new design for ultracompact multimode interference-based 2×2 couplers

Author

Levy, David S. ; Scarmozzino, Robert ; Li, York M. ; Osgood, Richard M., Jr.

Volume

1

fYear

1997

fDate

10-13 Nov 1997

Firstpage

399

Abstract

Summary form only given. Perhaps the most important MMI structure is the 2×2 coupler, due to its use in such a variety of photonic integrated circuits. We propose here a new MMI stucture which reduces the proximity limitations by allowing the access waveguides to be well separated. This device allows for a major reduction in the device length through a taper of the MMI region width along the propagation axis. The shape of the MMI region is designed in such a manner that the splitting ratio at the end of the MMI region is preserved, even at the 3dB point. Numerical simulations of several such MMI structure designs are given

Keywords

light interference; numerical analysis; optical couplers; optical design techniques; optical waveguide theory; optical waveguides; 2×2 coupler; MMI region width taper; MMI structure; MMI structure designs; access waveguides; device length; numerical simulations; photonic integrated circuits; propagation axis; proximity limitations; splitting ratio; ultracompact multimode interference-based 2×2 coupler design; Circuits; Couplers; Delay lines; Interference; Optical devices; Optical interferometry; Optical waveguides; Power lasers; Ring lasers; Ultraviolet sources;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Society Annual Meeting, 1997. LEOS '97 10th Annual Meeting. Conference Proceedings., IEEE

Conference_Location

San Francisco, CA

ISSN

1092-8081

Print_ISBN

0-7803-3895-2

Type

conf

DOI

10.1109/LEOS.1997.630689

Filename

630689