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On-chip multiplexing conversion between wavelength division multiplexing-polarization division multiplexing and
Optics Letters
|February 25, 2014
Summary
A new silicon device efficiently converts polarization division multiplexing (PDM) and mode division multiplexing (MDM) signals. This technology supports high-speed data transmission and WDM networks, boosting network interface throughput.
Area of Science:
- Photonics
- Optical Communications
- Integrated Optics
Background:
- Mode division multiplexing (MDM) and polarization division multiplexing (PDM) are key technologies for increasing optical network capacity.
- Efficient conversion between these multiplexing schemes is crucial for advanced optical networks.
Purpose of the Study:
- To propose and experimentally demonstrate a compact silicon-on-insulator (SOI) device for PDM-MDM signal conversion.
- To achieve high-performance signal conversion for high-speed data transmission.
Main Methods:
- Utilizing a hybrid structure combining an improved two-dimensional grating coupler and a two-mode multiplexer.
- Designing and fabricating a compact SOI device.
Main Results:
- Demonstrated extinction ratios of 16 dB (X-pol) and 20 dB (Y-pol).
- Successfully processed 40 Gb/s signals within the C-band with good performance.
- The device supports multiple wavelengths, enabling WDM-PDM to WDM-MDM conversions.
Conclusions:
- The proposed device offers efficient PDM-MDM signal conversion on a compact SOI platform.
- This technology is promising for increasing throughput in wavelength division multiplexing (WDM) networks.
- Enables seamless integration of PDM and MDM in future optical communication systems.
