Title :
Optimization of Wavelength-Locking Loops for Fast Tunable Laser Stabilization in Dynamic Optical Networks
Author :
Bianciotto, Alessandro ; Puttnam, Benjamin J. ; Thomsen, Benn ; Bayvel, Polina
Author_Institution :
Electr. Eng. Dept., Politec. di Torino, Turin, Italy
fDate :
6/15/2009 12:00:00 AM
Abstract :
This paper presents a theoretical model of a wavelength-locking loop for stabilization of the output wavelength in multisection tunable lasers for their application in future dynamic optical burst-switched networks. The linearized theoretical model was used to derive expressions for the optimal PID coefficients of a control circuit for etalon-based wavelength-locking control loop as a function of the key loop parameters. The validity of the model was then experimentally verified by measurements of locking performance of a digital supermode-distributed Bragg reflector tunable laser based on the proposed model.
Keywords :
distributed Bragg reflector lasers; laser modes; laser stability; laser tuning; laser variables measurement; light interferometry; optical control; optical fibre networks; optical phase locked loops; optical transmitters; optimisation; semiconductor lasers; control circuit optimal PID coefficient; digital supermode-distributed Bragg reflector tunable laser; etalon-based wavelength-locking control loop; laser locking measurement; optical networks; optical transmitter; semiconductor lasers; tunable laser stabilization; wavelength-locking loop optimization; Optical network; optical transmitter; tunable laser; wavelength locking;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2008.2008400