Temperature-immune readout of an integrated optical wavelength meter based on microring resonators
Caterina Taballione (University of Twente)
T.E. Agbana (TU Delft - Team Raf Van de Plas)
GV Vdovin (TU Delft - Team Raf Van de Plas)
Marcel Hoekman (LioniX International BV)
Lennart Wevers (LioniX International BV)
Jeroen Kalkman (TU Delft - ImPhys/Quantitative Imaging)
M Verhaegen (TU Delft - Team Raf Van de Plas)
Peter J.M. van der Slot (University of Twente)
Klaus-Jochen Boller (University of Twente)
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Abstract
Wavelength meters are central for many applications such as in telecommunication systems or laser monitoring. The primary function of a wavelength meter is to provide an output signal that changes sensitively with the wavelength of the input light. Of central importance is the reproducibility of the output signal even in the presence of external perturbations, e.g., temperature changes causing thermal drift. Various different methods are usually applied to improve reproducibility, e.g., thermal stabilization or repeated calibration with an additional reference light source of well-known and stable wavelength.