Accession Number:

ADA254555

Title:

Fibre-Optic Sensors Using Adiabatically Tapered Single-Mode Fibres

Descriptive Note:

Doctoral thesis

Corporate Author:

CAMBRIDGE UNIV (UNITED KINGDOM) DEPT OF ENGINEERING

Personal Author(s):

• Hale, Zoe M.

Report Date:

1992-05-01

Pagination or Media Count:

46.0

Abstract:

A tapered single-mode fibre optic device was investigated for use as an intrinsic pH sensor. The sensing process is based on the detection of evanescent-wave excited fluorescence energy from an indicator dye circulating the taper. Appropriate selection of dye and taper parameters have allowed the sensor to perform well in harsh chemical environments, with near-real-time response. Future work could include immobilisation schemes for the indicator as well as other sensor types, such as pCa. Further optical properties of the tapered fibre will also be investigated.

Descriptors:

• *FIBER OPTICS
• *FLUORESCENCE
• *DYES
• *PH METERS
• OPTICAL PROPERTIES
• OPTICS
• CHEMICALS
• ENERGY
• TIME
• INDICATORS
• EVANESCENT WAVES
• SELECTION
• TAPER
• RESPONSE
• THESES
• PARAMETERS
• REAL TIME
• ENVIRONMENTS
• DETECTION

Subject Categories:

• Physical Chemistry
• Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE