All-fiber spectral filters with nonperiodic bandpass characteristics and high extinction ratios in the wavelength range 0.8 μm<λ<1.6 μm

Author

Safaai-Jazi, Ahmad ; McKeeman, John C.

Author_Institution

Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA

Volume

9

Issue

8

fYear

1991

fDate

8/1/1991 12:00:00 AM

Firstpage

959

Lastpage

963

Abstract

A simple modification is proposed to the dual-core spectral filter design which extends the range of single wavelength transmission considerably, making the filter characteristic nonperiodic in the wavelength range 0.8 μm<λ<1.6 μm. Also, a spectral filter based on collinear triple-core fiber is proposed which provides a substantially lower sidelobe level than the dual-core filter. Transmission characteristics of the proposed filters are calculated and compared with those of the unmodified dual-core filter. The advantages of the proposed filters, particularly for application in wavelength division multiplexed systems are addressed

Keywords

fibre optics; optical communication equipment; optical filters; 0.8 to 1.6 micron; collinear triple-core fiber; high extinction ratios; nonperiodic bandpass characteristics; sidelobe level; spectral filter; transmission characteristics; wavelength division multiplexed systems; Band pass filters; Bandwidth; Couplings; Extinction coefficients; Extinction ratio; Optical fiber amplifiers; Optical fiber communication; Optical fiber couplers; Optical fiber filters; Wavelength division multiplexing;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.84161

Filename

84161