Title :
Stability control algorithms for a photonic filter
Author :
Natarajan, Prakash ; Shynk, John J.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of California, Santa Barbara, CA, USA
Abstract :
A practical implementation of an optical filter must have a mechanism to compensate for variations in the component parameters-especially for an infinite-impulse-response (IIR) filter which can enter lasing mode if the poles are too close to the unit circle. Temperature changes are a frequent cause of unwanted drift in the parameters of the various optical components. In this paper, we consider an equation-error method for estimating and optimizing the parameters of a recently developed photonic integrated circuit (PIC). We characterize the effect of temperature-induced changes in the frequency response of the PIC, and describe adaptive compensation algorithms to adjust the filter parameters.
Keywords :
IIR filters; integrated optics; optical control; optical filters; stability; adaptive compensation algorithms; equation-error method; infinite-impulse-response filter; photonic filter; photonic integrated circuit; stability control algorithms; temperature-induced effect; Adaptive optics; Integrated optics; Noise; Optical filters; Optical refraction; Optical variables control; Temperature measurement; Photonic filter; equation-error formulation; parameter estimation;
Conference_Titel :
Signal Processing Systems (SIPS), 2010 IEEE Workshop on
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-4244-8932-9
Electronic_ISBN :
1520-6130
DOI :
10.1109/SIPS.2010.5624883
