Four-port fibre frequency-shifter with a null taper coupler


Birks, T.A., Farwell, S.G., Russell, P.St.J. and Pannell, C.N. (1994) Four-port fibre frequency-shifter with a null taper coupler. Optics Letters, 19, (23), 1964-1966. (doi:10.1364/OL.19.001964).

Download

[img] PDF - Publishers print
Download (372Kb)

Description/Abstract

A prototype of a new design of fiber frequency shifter, based on a special four-port fused taper coupler with a null maximum coupling ratio, is reported. In this coupler the constituent fibers are so dissimilar that the maximum coupling is (ideally) zero. In the presence of a flexural acoustic wave, light is coupled between the fibers, acquiring a frequency shift in the process. Near 100% conversion with 30-dB sideband and carrier suppression is achieved, in an unoptimized device, for just 1 mW of electrical drive power.

Item Type: Article
ISSNs: 0146-9592 (print)
Related URLs:
Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: University Structure - Pre August 2011 > Optoelectronics Research Centre
ePrint ID: 78246
Date Deposited: 11 Mar 2010
Last Modified: 27 Mar 2014 18:58
URI: http://eprints.soton.ac.uk/id/eprint/78246

Actions (login required)

View Item View Item

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics