Novel approach for simultaneous wireless transmission and evaluation of optical sensors

Niels Neumann; Tobias Schuster; Dirk Plettemeier

doi:10.1117/12.2070053

11 November 2014 Novel approach for simultaneous wireless transmission and evaluation of optical sensors

Niels Neumann, Tobias Schuster, Dirk Plettemeier

Proceedings Volume 9274, Advanced Sensor Systems and Applications VI; 927402 (2014) https://doi.org/10.1117/12.2070053
Event: SPIE/COS Photonics Asia, 2014, Beijing, China

Abstract

Optical sensors can be used to measure various quantities such as pressure, strain, temperature, refractive index, pH value and biochemical reactions. The interrogation of the sensor can be performed spectrally or using a simple power measurement. However, the evaluation of the sensor signal and the subsequent radio transmission of the results is complicated and costly. A sophisticated system setup comprising a huge number of electrooptical components as well as a complete radio module is required. This is not only expensive and unreliable but also impractical within harsh environment, in limited space and in inaccessible areas. Radio-over-Fiber (RoF) technology implies signals modulated on an electrical carrier being transmitted over fiber by using optical carriers. Combining RoF techniques and optical sensors, a new class of measurement devices readable by a radio interfaces is introduced in this paper. These sensors use a modulated input signal generated by a RoF transmitter that { after being influenced by the optical sensor--is directly converted into a radio signal and transmitted. This approach enables remote read-outs of the sensor by means of wireless evaluation. Thus, costly, voluminous, power hungry and sensitive equipment in the vicinity of the measurement location is avoided. The equipment can be concentrated in a central location supporting existing radio transmission schemes (e.g. WiFi).

Citation Download Citation

Niels Neumann, Tobias Schuster, and Dirk Plettemeier "Novel approach for simultaneous wireless transmission and evaluation of optical sensors", Proc. SPIE 9274, Advanced Sensor Systems and Applications VI, 927402 (11 November 2014); https://doi.org/10.1117/12.2070053

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