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Optica Publishing Group
  • Optical Fiber Communications Conference
  • OSA Trends in Optics and Photonics (Optica Publishing Group, 2002),
  • paper ThQ3

Timing Jitter Measurement of 40 Gbit/s RZ Raman Loop Data using Gated Auto-and Cross-correlation

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Abstract

In the area of high-bit-rate optical networks and ultra-fast laser sources, timing jitter has become the major limiting factor to achieve high optical performance and data transmission. Consequently, monitoring the timing jitter in a highly time-resolved fashion is crucial for operating and maintaining a bit error free ultra-fast network. Timing jitter analysis via the RF spectrum has been successfully employed for MHz1,2 and GHz repetition rates.3 The RF methods that require high-speed electronics or at least a considerable effort regarding the acquisition electronics, 4,5 can not be readily scaled with increasing bit-rate. It is desirable to utilize an all-optical technique to monitor the timing jitter. For laser sources, such as semiconductor lasers, the cross-correlation technique has been employed in the past.6 In this paper we preset an all-optical scheme, based also on the cross-correlation technique, to perform a bit-rate independent timing jitter measurement without fast electronics and without any reference signal from the optical network.

© 2002 Optical Society of America

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