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Low-power microelectromechanically tunable silicon photonic ring resonator add-drop filter.
Optics Letters
|August 11, 2015
Summary
We developed a new microelectromechanical systems (MEMS) tunable photonic ring resonator add-drop filter. This device offers significantly improved wavelength tuning and a high tuning rate with minimal power consumption.
Area of Science:
- Photonics
- Microelectromechanical Systems (MEMS)
Background:
- Photonic ring resonators are crucial for optical communication and signal processing.
- Existing MEMS-tunable ring resonators face limitations in tuning range and speed.
Purpose of the Study:
- To demonstrate a novel MEMS-tunable photonic ring resonator add-drop filter.
- To achieve enhanced resonance wavelength tuning and a high tuning rate.
Main Methods:
- Fabrication using a silicon-on-insulator (SOI) process.
- Utilizing electrostatic parallel plate actuation to tune the evanescent field of a silicon waveguide.
Main Results:
- Achieved 530 pm resonance wavelength tuning, a fourfold improvement over previous devices.
- Demonstrated a static power consumption below 100 nW.
- Obtained a tuning rate of -62 pm/V, the highest reported for electrostatic tuning of such filters.
Conclusions:
- The developed MEMS tunable photonic ring resonator offers superior performance for optical filtering applications.
- This advancement paves the way for more efficient and compact optical communication systems.
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