Low-loss fibre-pigtailed 256 channel arrayed-waveguide grating multiplexer using cascaded laterally-tapered waveguides

Author

Ishii, M. ; Takagi, A. ; Hida, Y. ; Itoh, M. ; Kamei, S. ; Saida, T. ; Hibino, Y. ; Sugita, A. ; Kitagawa, T.

Author_Institution

NTT Photonics Labs., NTT Corp., Ibaraki, Japan

Volume

37

Issue

23

fYear

2001

fDate

11/8/2001 12:00:00 AM

Firstpage

1401

Lastpage

1402

Abstract

A fibre-pigtailed 25 GHz-spacing 256 channel arrayed-waveguide grating (AWG) module has been fabricated. The module was composed of an AWG chip with a Δ of 1.5%, a fan-out planar lightwave circuit (PLC) with a A of 0.75%, an input fibre and two 128 fibre arrays. To improve the coupling loss of the 256 output fibres, a new PLC-fibre connection using cascaded laterally-tapered waveguides was developed. The fibre-pigtailing loss is reduced to only 1.1 dB and a multiplexer with a low insertion loss of 1.9-3.9 dB is realised

Keywords

diffraction gratings; integrated optoelectronics; modules; multiplexing equipment; optical arrays; optical communication equipment; optical losses; optical planar waveguides; 1.1 dB; 1.9 to 3.9 dB; AWG chip; AWG module; PLC-fibre connection; cascaded laterally tapered waveguides; cascaded laterally-tapered waveguides; coupling loss; fan-out planar lightwave circuit; fibre arrays; fibre-pigtailing loss; input fibre; low insertion loss; low-loss fibre-pigtailed 256 channel arrayed waveguide grating multiplexer; output fibres;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el:20010963

Filename

966548