Performance of optical double ring resonator(DRR) and triple ring resonator (TRR) made up of silicabased
waveguides, as optical filter is addressed in the article. Vernier principles is adopted in the article and the
transmittance of the DRR and TRR is presented in Z-domain. The delay line signal processing approach and Mason's
rule have been used to develop the transmittance . The DRR described in the article can produce 300 GHz of free
spectral range (FSR) with crosstalk limited within -10dB level and FSR of the TRR achieved is 800 GHz with
reduced crosstalk as well as resonance loss remaining within reasonable limits. Group delay and dispersion
characteristics around the resonant frequencies is also presented in the article. These wide FSR filters provide ample
scope in exploiting the enormous potential in ever expanding field of optical communication using optical frequency
division multiplexing (OFDM) or other state of art techniques.
A waveguide-based wide free-spectral-range (FSR) triple ring resonator (TRR) as an optical filter has been investigated in this article. The transmittance of the TRR is presented in Z-domain. The delay line signal processing approach and Mason's gain formula have been used to develop the transmittance of the TRR. The TRR in the article is capable of providing an FSR up to 605 GHz with lower crosstalk limited within -10 dB. Another efficacious scheme of TRR with much wider FSR of 1029 GHz and with reduced unit delay length is presented in the article. Here also crosstalk, as well as resonance loss, remains within reasonable limits. The FSRs obtained using the present TRR architectures in this work are until now reported as maximum for a corresponding class of optical ring resonators. The issues of group delay and dispersion, two important parameters associated with high frequency optical communication have been addressed in this article.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.