Investigations for real-time Raman measurements in the deep ocean by applying a 1.5 W BA DFB diode laser and long optical fibers

Heinz-Detlef Kronfeldt; Martin Maiwald; Hossam Ahmad; Heinar Schmidt; Klaus Wohlfart; Bernd Sumpf; Andreas Klehr; Götz Erbert

doi:10.1117/12.853073

23 April 2010 Investigations for real-time Raman measurements in the deep ocean by applying a 1.5 W BA DFB diode laser and long optical fibers

Heinz-Detlef Kronfeldt, Martin Maiwald, Hossam Ahmad, Heinar Schmidt, Klaus Wohlfart, Bernd Sumpf, Andreas Klehr, Götz Erbert

Author Affiliations +

Proceedings Volume 7673, Advanced Environmental, Chemical, and Biological Sensing Technologies VII; 76730B (2010) https://doi.org/10.1117/12.853073
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

Abstract

Raman spectroscopy is a powerful tool to obtain "fingerprint" spectra from substances in numerous applications. In-situ and/or real time measurements are interesting for the detection of minerals, organic compounds, gas hydrates or methane in the deep-ocean. In this work we present Raman measurements of selected minerals. A DFB diode laser at 785 nm was used as excitation light source with an output power up to 1.5 W. An excitation fiber of 1000 m length was used to demonstrate the suitability of Raman spectroscopy for deep-sea applications.

Citation Download Citation

Heinz-Detlef Kronfeldt, Martin Maiwald, Hossam Ahmad, Heinar Schmidt, Klaus Wohlfart, Bernd Sumpf, Andreas Klehr, and Götz Erbert "Investigations for real-time Raman measurements in the deep ocean by applying a 1.5 W BA DFB diode laser and long optical fibers", Proc. SPIE 7673, Advanced Environmental, Chemical, and Biological Sensing Technologies VII, 76730B (23 April 2010); https://doi.org/10.1117/12.853073

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