Open AccessDemonstration of a wavelength monitor comprised of racetrack-ring resonators with defect mediated photodiodes operating in the C-band
Author(s) -
Riya Dey,
J. K. Doylend,
Jason J. Ackert,
A. M. Evans,
P. E. Jessop,
Andrew P. Knights
Publication year - 2013
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.023450
Subject(s) - resonator , photodiode , optics , materials science , optoelectronics , wavelength , free spectral range , resonance (particle physics) , silicon , physics , particle physics
A CMOS compatible wavelength monitor comprised of two thermally tuned racetrack-ring resonators with defect mediated photodiode structures is experimentally demonstrated in monolithic silicon. Each resonator is independently tuned so as to determine an unknown input wavelength by tuning the resonance peak locations until there is overlap between the two comb spectra. The presence of two of these resonator/heater components, each with a different free spectral range, increases the unambiguous measurement range when compared to one component used on its own.