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Continuously-tunable Optical Delay Line using PLC-based Optical FIR Filter

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Abstract

We demonstrate continuously-tunable optical delay using an optical FIR filter consisting of discrete time-delay elements. A 16-tap PLC-based FIR filter having a 10-ps unit time delay enables tunable delay in the range of ± 25 ps.

© 2010 Optical Society of America

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