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Optical delay line employing an arrayed waveguide grating in fold-back configuration

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3 Author(s)
Vidal, B. ; Fiber Radio Group, Univ. Politecnica de Valencia, Spain ; Corral, J.L. ; Marti, J.

A novel optical delay line (ODL) using an arrayed-waveguide grating (AWG) in fold-back configuration is proposed and experimentally demonstrated. This fold-back configuration offers crosstalk reduction and loss-imbalance as compared with previously reported loop-back AWG-based ODL. The experimental results show that different highly accurate delays can be obtained with a single AWG over a huge modulation bandwidth (2-18 GHz).

Published in:

Microwave and Wireless Components Letters, IEEE  (Volume:13 ,  Issue: 6 )