Miniaturization of Bragg-multiplexed membrane transducers


Holmes, C., Carpenter, Lewis G., Gates, J C and Smith, P G R (2012) Miniaturization of Bragg-multiplexed membrane transducers. Journal of Micromechanics and Microengineering, 22, (2), 025017. (doi:10.1088/0960-1317/22/2/025017).

Download

Full text not available from this repository.

Description/Abstract

This paper reports the miniaturization of Bragg-multiplexed pressure sensing membranes for integrated photonic chips. The analysis compares a novel Fabry-Pérot Bragg grating (FPBG) design that integrally spans a thin (54 μm) silica membrane to a recently reported single Bragg grating (BG) design that resides within the membrane. Unlike the single BG, the FPBG maintains spectral integrity as the dimensions of the membrane become sub-millimetre. In addition it is shown that the FPBG structure can also be used for inherent temperature referencing, having a Bragg thermal sensitivtiy of 13.5 pm °C-1, which can be decoupled from pressure effects. For the reported sub-millimetre membrane, pressure resolution was enhanced by a factor of three and spectral bandwidth reduced by over five-fold.

Item Type: Article
ISSNs: 0960-1317 (print)
1361-6439 (electronic)
Related URLs:
Subjects: Q Science > QC Physics
Divisions: Faculty of Physical Sciences and Engineering > Optoelectronics Research Centre
ePrint ID: 301216
Date Deposited: 29 Feb 2012 14:40
Last Modified: 27 Mar 2014 20:19
URI: http://eprints.soton.ac.uk/id/eprint/301216

Actions (login required)

View Item View Item