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Optical reconfigurable demultiplexer based on Bragg grating assisted ring resonators.
Optics Express
|October 17, 2014
Summary
This study presents a polarization-independent reconfigurable optical demultiplexer on silicon-on-insulator technology. It achieves low crosstalk and high channel capacity, enabling efficient wavelength selective switching.
Area of Science:
- Photonics and Optical Engineering
- Integrated Optics
- Semiconductor Devices
Background:
- Optical communication systems require efficient wavelength division multiplexing (WDM) components.
- Existing demultiplexers face challenges with polarization dependence, crosstalk, and channel count.
- Silicon-on-insulator (SOI) technology offers a platform for integrated optical devices.
Purpose of the Study:
- To design and simulate a polarization-independent reconfigurable optical demultiplexer.
- To achieve low crosstalk and high channel allocation capability.
- To explore the use of carrier dispersion for device operation.
Main Methods:
- Cascading wavelength selective switch units.
- Utilizing silicon-on-insulator (SOI) fabrication technology.
- Simulating device performance, including crosstalk and insertion loss.
Main Results:
- Achieved crosstalk below -30dB for adjacent channels.
- Demonstrated insertion loss below 1.5dB in the off-state.
- Designed a device with high potential for allocated channels and polarization independence.
Conclusions:
- The proposed reconfigurable optical demultiplexer meets key performance metrics for advanced optical networks.
- The design demonstrates the feasibility of polarization-independent operation using SOI technology.
- Further investigations into carrier dispersion effects and power consumption are included.
