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Updated: Jun 21, 2026

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Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
Published on: August 5, 2013
Low power four wave mixing in an integrated, micro-ring resonator with Q = 1.2 million
M Ferrera1, D Duchesne, L Razzari
1INRS-EMT, 1650 Boulevard Lionel Boulet, Varennes, Quebec J3X-1S2, Canada. ferreram@emt.inrs.ca
Optics Express
|August 6, 2009
Abstract:
We demonstrate efficient, low power, continuous-wave four-wave mixing in the C-band, using a high index doped silica glass micro ring resonator having a Q-factor of 1.2 million. A record high conversion efficiency for this kind of device is achieved over a bandwidth of 20 nm. We show theoretically that the characteristic low dispersion enables phase-matching over a tuning range > 160 nm.
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Characteristics of Series Resonant Circuit
Series resonance occurs in a circuit containing inductive (L), capacitive (C), and resistive (R) elements connected sequentially. At the resonance frequency, the inductive and capacitive reactances are equal in magnitude but opposite in sign, effectively canceling each other. This causes the circuit's impedance is minimal, primarily determined by the resistance R. The resonant frequency of an RLC circuit is defined as:
Parallel Resonance
The parallel RLC circuit is an arrangement where the resistor (R), inductor (L), and capacitor (C) are all connected to the same nodes and, as a result, share the same voltage across them. The parallel RLC circuit is analyzed in terms of admittance (Y), which reflects the ease with which current can flow. The admittance is given by:

