All-optical wireless wavelength multiplexing and demultiplexing using resonant cavity

Area of Science:

• Photonics and Optical Engineering
• Nanotechnology and Materials Science

Background:

• Advancements in network architectures require miniaturized photonic components.
• Wireless wavelength multiplexing and demultiplexing are key for next-generation optical networks.

Purpose of the Study:

• To numerically represent a new wireless transmission system for C-band infrared wavelengths.
• To demonstrate signal transmission between two identical resonant cavities in photonic chips.

Main Methods:

• Utilizing an H1 rod-type two-dimensional photonic crystal (PhC) microcavity as a transmitter and receiver.
• Implementing point-to-point oscillatory light-field exchange between resonant cavities.
• Linking two independent photonic circuits wirelessly.

Main Results:

• Successful wireless transmission of multi-resonance wavelengths between photonic chips.
• Demonstrated signal transfer over distances significantly larger than the resonance wavelength.
• Achieved non-interfering signal transmission within PhC waveguides.

Conclusions:

• The proposed wireless photonic system enables efficient, long-distance wavelength transfer between chips.
• This technology is suitable for integrated optical circuit interconnects.
• The device holds potential for applications in small-scale photonic chip sensors.