Laser-based optical fiber array fluorosensor for marine applications

Robert G. Milne; Daniel McStay; Patricia M. Pollard; J. Dunn

doi:10.1117/12.236193

25 March 1996 Laser-based optical fiber array fluorosensor for marine applications

Robert G. Milne, Daniel McStay, Patricia M. Pollard, J. Dunn

Proceedings Volume 2705, Fluorescence Detection IV; (1996) https://doi.org/10.1117/12.236193
Event: Photonics West '96, 1996, San Jose, CA, United States

Abstract

A recently developed Argon laser based system, deploying an optical fiber array of 12 silica fiber sensors each 75 m in length, with a core diameter of 200 micrometers, capable of giving real time measurements of marine phytoplankton populations of 0.1 micrograms/l is reported. The laser light is amplitude modulated and a phase sensitive detection system is used. A series of sea trials in the North Sea were conducted on board the Royal Research Vessel 'Challenger' during May 1995, to demonstrate the reliability of the system under extreme weather conditions, and that the system was capable of giving realtime fluorescence measurements. Initial tests using Fluorescein dye for calibration purposes were carried out in the laboratory. Results from the laboratory and sea trials have shown that the system is relatively insensitive to down-welling light, has long term stability and does not suffer from fouling. Also the results obtained from the laser system are generally in good agreement with results obtained by conventional phytoplankton sampling methods, giving confidence in the validity of the realtime data from the laser system.

Citation Download Citation

Robert G. Milne, Daniel McStay, Patricia M. Pollard, and J. Dunn "Laser-based optical fiber array fluorosensor for marine applications", Proc. SPIE 2705, Fluorescence Detection IV, (25 March 1996); https://doi.org/10.1117/12.236193

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available