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Embedded ring resonators for microphotonic applications
Lin Zhang1, Muping Song, Teng Wu
1Department of Electrical Engineering, University of Southern California, Los Angeles, CA 90089, USA. linzhang@usc.edu
Optics Letters
|September 2, 2008
Summary
We introduce embedded ring resonators (ERRs), a novel optical resonator design. These ERRs enable compact, high-speed photonic devices like modulators operating up to 30 GHz.
Area of Science:
- Photonics and Optical Engineering
- Integrated Optics
Background:
- Optical resonators are fundamental components in photonic integrated circuits.
- Existing designs face limitations in compactness and speed for advanced applications.
Purpose of the Study:
- To propose and analyze a new type of optical resonator: embedded ring resonators (ERRs).
- To demonstrate the potential of ERRs for designing compact and high-speed photonic devices.
Main Methods:
- Theoretical analysis of a basic ERR configuration with two coupled rings.
- Investigation of unique amplitude and phase characteristics.
- Experimental demonstration of an ERR-based microring modulator.
Main Results:
- ERRs exhibit unique amplitude and phase responses.
- A point-to-point coupled ERR configuration was analyzed under two operating conditions.
- An ERR-based microring modulator achieved high-speed operation up to 30 GHz.
Conclusions:
- Embedded ring resonators offer a promising platform for next-generation photonic integrated circuits.
- ERRs facilitate the design of compact filters, modulators, and delay elements.
- The demonstrated high-speed modulation highlights the potential of ERRs for advanced optical communication systems.
