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Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation
Published on: February 25, 2017
6-micron interaction length electro-optic modulation based on lithium niobate photonic crystal cavity
1Institut FEMTO-ST, UMR CNRS 6174, Université de Franche-Comté, 16 Route de Gray F-25030 Besançon Cedex, France. huihui.lu@femto-st.fr
Optics Express
|October 6, 2012
Summary
We demonstrate electro-optic modulation in a compact Lithium Niobate (LN) Photonic Crystal (PC) cavity. This micro-photonic device achieves a notable 0.6 nm/V tunability, paving the way for low-power tunable photonic applications.
Area of Science:
- Photonics
- Materials Science
- Electrical Engineering
Background:
- Lithium Niobate (LN) is a key material for electro-optic applications.
- Photonic Crystal (PC) cavities offer unique light confinement properties.
- Miniaturization of photonic devices is crucial for advanced applications.
Purpose of the Study:
- To investigate electro-optic modulation in a compact LN Photonic Crystal cavity.
- To demonstrate the tunability of such a device.
- To explore potential for low-power micro/nano-scale tunable photonic devices.
Main Methods:
- Fabrication of a 2D Photonic Crystal cavity on an Annealed Proton Exchange (APE) LN waveguide.
- Integration of vertical deposited electrodes for electrical modulation.
- Experimental characterization of the device's electro-optic response.
Main Results:
- Achieved a device length of only 6 μm.
- Demonstrated a tunability of 0.6 nm/V.
- Confirmed the effectiveness of the compact design for electro-optic modulation.
Conclusions:
- The developed LN PC cavity structure enables efficient electro-optic modulation.
- The compact design is suitable for micro and nano-scale tunable photonic devices.
- This approach promises low driving electrical power requirements for tunable photonic circuits.
