Real-time measurement of accumulated chromatic dispersion for automatic dispersion compensation
2002; Institution of Engineering and Technology; Volume: 38; Issue: 20 Linguagem: Inglês
10.1049/el
ISSN1350-911X
AutoresS. Wielandy, M. Fishteyn, Tsing-Hua Her, D. Kudelko, C. Zhang,
Tópico(s)Photonic and Optical Devices
ResumoA differential measurement scheme using nonlinear optical detection in a silicon avalanche photodiode that was used to measure both the magnitude and sign of the accumulated chromatic dispersion of a stream of laser pulses at 1550 nm is demonstrated. This differential dispersion measurement scheme inherently provides a continuous error signal that was used as feedback to a tunable dispersion compensator so that laser pulses experienced zero net dispersion.
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