Optical low-coherence reflectometry using a Gaussian bandpass filter for measuring WDM components

Author

Takada, K. ; Okamoto, K.

Author_Institution

Photonics Labs., Nippon Telegraph & Telephone Corp., Ibaraki, Japan

Volume

11

Issue

8

fYear

1999

Firstpage

1021

Lastpage

1023

Abstract

We report that a tunable narrow-band light source using a Gaussian bandpass filter is indispensable for measuring the return loss of a wavelength-division-multiplexing component with an optical low coherence reflectometer. We used an arrayed-waveguide grating (AWG) to construct a 0.4 nm-wide Gaussian bandpass filter and successfully measured the reflection of a 100-GHz-spaced 1/spl times/6 AWG component.

Keywords

diffraction gratings; optical communication equipment; optical fibre losses; optical loss measurement; optical planar waveguides; optical tuning; optical waveguides; reflectometry; wavelength division multiplexing; AWG component; Gaussian bandpass filter; WDM components; arrayed-waveguide grating; optical low coherence reflectometer; optical low-coherence reflectometry; return loss; tunable narrow-band light source; wavelength-division-multiplexing component; Arrayed waveguide gratings; Band pass filters; Light sources; Loss measurement; Narrowband; Optical devices; Optical filters; Optical losses; Reflectometry; Wavelength measurement;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.775333

Filename

775333