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.
|Title of host publication||Proceedings of IEEE Laser and Electro-Optics Society Annual Meeting : LEOS 2004|
|Publication status||Published - 2004|
|Event||17th Annual Meeting of the IEEE Lasers and Electro-Optics Society - Puerto Rico, United States|
Duration: 8 Nov 2004 → 9 Nov 2004
|Conference||17th Annual Meeting of the IEEE Lasers and Electro-Optics Society|
|Period||08/11/2004 → 09/11/2004|