RT info:eu-repo/semantics/article T1 All-fiber tunable optical delay line A1 Caucheteur, C. A1 Mussot, A. A1 Bette, S. A1 Kudlinski, A. A1 Douay, M. A1 Louvergneaux, E. A1 Mégret, P. A1 Taki, M. A1 González Herráez, Miguel K1 Optical communications K1 Fiber Bragg gratings K1 Dispersion compensation devices K1 Polarization-selective devices K1 Ciencias tecnológicas K1 Electrónica K1 Technology K1 Electronics AB We present a tunable optical delay line based on the use of asingle chirped fiber Bragg grating written into a standard single modeoptical fiber. In the proposed scheme, the delay is induced through theBragg grating differential group delay curve. This is achieved by launchingorthogonally polarized optical pulses in both directions into the Bragggrating and by controlling its local birefringence. This bidirectionalpropagation allows to compensate the second-order dispersion. The setup issuitable to delay pulses with a spectral width just less than the gratingreflection bandwidth, which is particularly useful in the context offorthcoming wavelength division multiplexing ultra-high bit rate lightwavesystems. In this work, the performances of the setup are investigated using apulsed laser delivering 6.3 ps Fourier transform limited pulses at 1548 nm.A maximum delay of 120 ps (about 20 times the pulse width) is reportedexperimentally. SN 1094-4087 YR 2010 FD 2010-02-01 LK http://hdl.handle.net/10017/31039 UL http://hdl.handle.net/10017/31039 LA eng DS MINDS@UW RD 19-abr-2024