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Proceedings Article

Low-cost parallelization of optical fiber based detectors for photoacoustic imaging

[+] Author Affiliations
Johannes Bauer-Marschallinger, Karoline Felbermayer, Armin Hochreiner, Hubert Grün, Peter Burgholzer, Thomas Berer

Research Ctr. for Non Destructive Testing GmbH (Austria)

Günther Paltauf

Karl-Franzens-Univ. Graz (Austria)

Proc. SPIE 8581, Photons Plus Ultrasound: Imaging and Sensing 2013, 85812M (March 4, 2013); doi:10.1117/12.2002034
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From Conference Volume 8581

  • Photons Plus Ultrasound: Imaging and Sensing 2013
  • Alexander A. Oraevsky; Lihong V. Wang
  • San Francisco, California, USA | February 02, 2013

abstract

We introduce a multichannel optical fiber based detector for photoacoustic imaging. By using in-house produced photodetectors and relative low-cost components from telecommunication industries we were able to reduce the costs for one channel significantly compared to previous setups. The estimated cost for one channel (without sampling device) is below 800 €. The self-made balanced photodetector for 1550 nm achieves a gain of 100 dB, a -3dB bandwidth of 45 MHz and a maximum signal-to-noise-ratio of 48 dB. We present a four channel annular detector array based on optical fiber Mach-Zehnder interferometers. Photoacoustic imaging is demonstrated by measuring photoacoustic signals of a black polyethylene microsphere. © (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Johannes Bauer-Marschallinger ; Karoline Felbermayer ; Armin Hochreiner ; Hubert Grün ; Günther Paltauf, et al.
" Low-cost parallelization of optical fiber based detectors for photoacoustic imaging ", Proc. SPIE 8581, Photons Plus Ultrasound: Imaging and Sensing 2013, 85812M (March 4, 2013); doi:10.1117/12.2002034; http://dx.doi.org/10.1117/12.2002034


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