Title :
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
fDate :
12/1/1992 12:00:00 AM
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;
Journal_Title :
Lightwave Technology, Journal of
