Ring Resonator Tunable Loss Element Ripple Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Optical resonator structures in optical modulators often exhibit non-ideal response characteristics, particularly response ripple, which affects their performance.
Innovation Solution
The implementation of a ring resonator with a tunable loss element within the resonator structure, allowing for the adjustment of loss to achieve improved response characteristics, including the use of concatenated ring resonators and balanced Mach-Zehnder modulators with tunable loss in each arm to linearize the response.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional optical resonator structures are used in optical modulators, then the device can achieve basic modulation functionality, but the response characteristics exhibit non-ideal behavior including response ripple
Solution Approach 1:
The patent introduces a tunable loss element within the ring resonator structure that allows dynamic adjustment of the resonator's loss parameter. By changing this parameter, the system can compensate for response ripple and achieve more ideal response characteristics, directly resolving the contradiction between basic functionality and response quality.
Solution Approach 2:
The tunable loss element acts as an intermediary component within the resonator structure. It mediates between the incoming optical signal and the resonator's natural response, enabling control over the response characteristics and reducing harmful ripple effects without fundamentally changing the resonator's core function.
2Reliability
If tunable loss element is added to the ring resonator, then response characteristics improve and ripple reduces, but device complexity increases
Solution Approach 1:
Rather than adding complex structural modifications, the patent achieves improved response characteristics by changing the loss parameter of the resonator through a tunable loss element. This parameter-based approach simplifies the overall device architecture compared to structural modifications while still achieving the desired performance improvement.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach reduces device ripple and achieves a response closer to ideal, providing greater flexibility and linearity in modulator performance.
Implementation Method 1
a ring resonator having a tunable loss element positioned within the ring resonator structure. By tuning and/or controlling the loss within the resonator
Data Source
AI summary
Optical modulator devices exhibiting improved response characteristics are constructed from a ring resonator having a tunable loss element positioned within the ring resonator structure and one or more phase shifters. By tuning and/or controlling the loss within the resonator, desired modulator response characteristics are obtained.