Translator Disclaimer
1 July 2011 Photonic integrated Brillouin optical time domain reflection readout unit
Author Affiliations +
Brillouin scattering can be used for determining strain distributions along fibers. This is a convenient way to monitor the structural integrity of large constructions. However, the high cost of the optical circuitry has prevented wide use of this technique. We report on a design study on an integrated optical circuit for a Brillouin optical time domain reflection readout unit with low-cost potential. The circuit contains narrow linewidth tuneable distributed Bragg reflector (DBR) lasers, photodiodes with an optical mixer for coherent detection, a 10-bit digitally switched delay line for frequency tuning, and a switching fabric that allows three modes of operation. Such a circuit can be realized through one of the upcoming foundries in the field of photonic integration.
©(2011) Society of Photo-Optical Instrumentation Engineers (SPIE)
Robert F. Klein Breteler, Jos J. G. M. van der Tol, Manuela Felicetti, Bart Sasbrink, and Meint K. Smit "Photonic integrated Brillouin optical time domain reflection readout unit," Optical Engineering 50(7), 071111 (1 July 2011).
Published: 1 July 2011


Intelligent fiber optic temperature measuring system
Proceedings of SPIE (February 03 1999)
Preliminary results from an in-situ spectral absorption meter
Proceedings of SPIE (December 31 1992)
Distributed optical fiber sensors
Proceedings of SPIE (March 05 1993)
Optical fiber densimeter for water in oil
Proceedings of SPIE (August 01 1991)

Back to Top