Photonic integrated Brillouin optical time domain reflection readout unit

Robert F. Klein Breteler; Jos J. G. M. van der Tol; Manuela Felicetti; Bart Sasbrink; Meint K. Smit

doi:10.1117/1.3574377

1 July 2011 Photonic integrated Brillouin optical time domain reflection readout unit

Robert F. Klein Breteler, Jos J. G. M. van der Tol, Manuela Felicetti, Bart Sasbrink, Meint K. Smit

Author Affiliations +

Optical Engineering, Vol. 50, Issue 7, 071111 (July 2011). https://doi.org/10.1117/1.3574377

Abstract

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)

Citation Download Citation

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). https://doi.org/10.1117/1.3574377

Published: 1 July 2011

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