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Double component long period waveguide grating filter in sol-gel material.

Abderrafia Moujoud, Hyun Jae Kim, Sung Ho Kang

|June 25, 2009

Summary

This summary is machine-generated.

A novel hybrid sol-gel material enables efficient, tunable Long Period Waveguide Grating (LPWG) filters. This breakthrough allows for integrated, polarization-independent optical filters operating at communication wavelengths.

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Area of Science:

Photonics and Optical Engineering
Materials Science
Nanotechnology

Background:

Long Period Waveguide Gratings (LPWGs) are crucial optical components.
Developing efficient and tunable LPWGs using novel materials is an ongoing research area.
Sol-gel materials offer unique properties for optical device fabrication.

Purpose of the Study:

To demonstrate an efficient, tunable LPWG filter using a new hybrid sol-gel material.
To investigate the performance characteristics of the developed LPWG filter, including attenuation and temperature sensitivity.
To showcase a simple method for integrating multiple LPWG filters onto a single waveguide structure.

Main Methods:

Fabrication of LPWG filters using a novel hybrid sol-gel material.
Utilizing UV-curable sol-gel properties and soft lithography for integration.
Characterization of optical properties, including attenuation, temperature sensitivity, and polarization dependence.
Integration of two LPWG filters on a single ridge waveguide.

Main Results:

Demonstrated an efficient LPWG filter with -22 dB attenuation.
Achieved high temperature sensitivity of approximately 3.3 nm/°C.
Observed nearly polarization-independent wavelength operation at room temperature.
Successfully integrated two LPWG filters operating at 1550 nm and 1310 nm on the same waveguide.

Conclusions:

The new hybrid sol-gel material is suitable for fabricating efficient and tunable LPWG filters.
The developed soft lithography approach enables simple integration of multiple LPWG filters.
The integrated LPWG filters show promising performance for optical communication applications.