Wavelength-division multi/demultiplexer utilizing optically active crystals

Author

Fujii, Yohji ; Minowa, Junichiro

Author_Institution

NTT Lab., Kanagawa, Japan

Volume

8

Issue

7

fYear

1990

fDate

7/1/1990 12:00:00 AM

Firstpage

1051

Lastpage

1054

Abstract

A wavelength-division multi/demultiplexer (W-MUX/DEMUX) utilizing optically active crystals is proposed and studied. It is shown that using two or more optically active crystals having different rotary powers and dispersions is effective for providing design freedom and for easy assembly of the W-MUX/DEMUX. A design for a two-wavelength W-MUX/DEMUX is also discussed. Based on this design, a W-MUX/DEMUX that multiplexes or demultiplexes light with wavelengths of 0.8 and 1.1 μm was fabricated. The insertion losses are 1.6 and 3.1 dB at wavelengths of 0.8 and 1.1 μm, respectively. Crosstalk attenuation of 13 dB or more is obtained at these wavelengths

Keywords

crosstalk; frequency division multiplexing; optical dispersion; optical losses; optical rotation; 0.8 micron; 1.1 micron; 1.6 dB; 3.1 dB; WDM; crosstalk attenuation; demultiplexer; dispersions; insertion losses; multi/demultiplexer; multiplexer design; optically active crystals; rotary powers; wavelength-division multiplexer; Assembly; Crystals; Dispersion; Lenses; Optical attenuators; Optical beam splitting; Optical design; Optical fiber polarization; Optical filters; Optical polarization;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.56406

Filename

56406