Conference paper
Analysis of the effects of time delay in clock recovery circuits based on Phase-locked loops
Influence of time delay in a balanced optical phase-locked loops (OPLL) with a proportional integrator (Pl) filter is investigated using a delayed differential equation (DDE) is investigated. The limitations, which a time delay imposes on the Pl filter bandwidth, at increasing values of loop gain, are investigated by numerical simulations.
Furthermore, simple expressions governing the stability properties of the loop, in the presence of time delay, are derived. For this purpose, three standard loop filters are considered: a Pl filter, a low pass (LP) filter and an active lag (AL) filter. The derived expressions are used to perform an optimisation in terms of the selected loop filters.
| Language: | English |
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| Publisher: | IEEE |
| Year: | 2004 |
| Pages: | 316-317 |
| Proceedings: | 17th Annual Meeting of the IEEE Lasers and Electro-Optics Society 2004 |
| Journal subtitle: | Leos 2004 |
| ISBN: | 0780385578 and 9780780385573 |
| Types: | Conference paper |
| DOI: | 10.1109/LEOS.2004.1363238 |
| ORCIDs: | Zibar, Darko , Oxenløwe, Leif Katsuo , Clausen, Anders , Mørk, Jesper and Jeppesen, Palle |
Active filters Band pass filters Circuits Clocks Delay effects Differential equations Integrated optics Low pass filters Optical filters Phase locked loops Pl filter bandwidth active lag filter clock recovery circuits delay circuits delayed differential equation delays differential equations loop gain low pass filter low-pass filters optical fibre communication optical filters optical phase locked loops phase-locked loops proportional integrator filter standard loop filters synchronisation time delay
