Narrow-band FiEnd etalon filters using expanded-core fibers

Author

Stone, J. ; Stulz, L.W. ; Marcuse, D. ; Burrus, C.A. ; Centanni, J.C.

Author_Institution

AT&T Bell Lab., Holmdel, NJ, USA

Volume

10

Issue

12

fYear

1992

fDate

12/1/1992 12:00:00 AM

Firstpage

1851

Lastpage

1854

Abstract

Narrowband optical filters were made by direct deposition of thin films of TiO₂ and SiO₂ on the ends of optical fibers. Single-cavity etalons with bandwidths of 1.1 nm, insertion loss of 1 dB, and 2.25 nm, insertion loss of 0.5 dB, were made. It is necessary to use fibers with mode fields larger than standard single mode fiber. Thermal expansion was used to diffuse the core dopant and produce tapered-core fibers with mode-field diameters of 22 μm

Keywords

optical design techniques; optical fibres; optical films; optical filters; optical losses; optical resonators; 0.5 dB; 1 dB; 22 micron; FiEnd etalon filters; SiO₂; TiO₂; bandwidths; core dopant; direct deposition; expanded-core fibers; fibre end filters; insertion loss; light interferometers; mode fields; mode-field diameters; narrow-band optical filters; optical filter design; single-cavity etalons; standard single mode fiber; tapered-core fibers; thermal expansion; thin films; Bandwidth; Insertion loss; Narrowband; Optical fiber filters; Optical fibers; Optical films; Optical filters; Optical losses; Sputtering; Thermal expansion;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.202838

Filename

202838