High performance directional coupler filter using novel phase-shift pair grating

Author

Park, Chan-Yong ; Kim, Dug-Bong ; Lee, Seung-Won ; Oh, Kwang-Ryong ; Kim, Hong-Man ; Pyun, Kwang-Eui

Author_Institution

Optoelectron. Sect., ETRI, Taejon, South Korea

Volume

1

fYear

1998

fDate

20-24 Sep 1998

Firstpage

401

Abstract

A novel phase-shift pair grating (PSPG) structure was proposed and demonstrated to suppress sidelobe in a grating-assisted codirectional coupler filter. A PSPG is composed of two unit gratings. The position of one unit grating inside PSPG is fixed and that of the other is shifted in order to control the coupling strength. We demonstrate sidelobe level of -19 dB with a linearly shifted PSPG, which is the lowest to our knowledge

Keywords

diffraction gratings; optical communication equipment; optical directional couplers; optical waveguide filters; wavelength division multiplexing; WDM components; coupling strength; grating-assisted codirectional coupler filter sidelobe suppression; high performance directional coupler filter; linearly shifted PSPG; phase-shift pair grating; Directional couplers; Electronic mail; Gratings; Interference; Optical crosstalk; Optical filters; Optical polarization; Optical tuning; Optical waveguides; Wavelength division multiplexing;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Communication, 1998. 24th European Conference on

Conference_Location

Madrid

Print_ISBN

84-89900-14-0

Type

conf

DOI

10.1109/ECOC.1998.732618

Filename

732618