Abstract:
This letter presents a new optical interconnect system for intrachip communications based on free-space optics. It provides all-to-all direct communications using dedicat...Show MoreMetadata
Abstract:
This letter presents a new optical interconnect system for intrachip communications based on free-space optics. It provides all-to-all direct communications using dedicated lasers and photodetectors, hence avoiding packet switching while offering ultra-low latency and scalable bandwidth. A technology demonstration prototype is built on a circuit board using fabricated germanium photodetectors, micro-lenses, commercial vertical-cavity surface-emitting lasers, and micro-mirrors. Transmission loss in an optical link of 10-mm distance and crosstalk between two adjacent links are measured as 5 and -26 dB, respectively. The measured small-signal bandwidth of the link is 10 GHz.
Published in: IEEE Photonics Technology Letters ( Volume: 23, Issue: 3, February 2011)
Keywords assist with retrieval of results and provide a means to discovering other relevant content. Learn more.
- IEEE Keywords
- Index Terms
- Free-space Optical Communication ,
- Optical Interconnects ,
- Prototype ,
- Optical System ,
- Circuit Board ,
- Interconnected Systems ,
- Transmission Loss ,
- Link Bandwidth ,
- Vertical-cavity Surface-emitting Lasers ,
- Energy Efficiency ,
- Low Loss ,
- Waveguide ,
- Numerical Aperture ,
- Arbitration ,
- Optical Power ,
- Printed Circuit Board ,
- Large-scale Systems ,
- Aperture Size ,
- Beam Divergence ,
- Point-to-point Links ,
- Microlens Array ,
- Wavelength Division Multiplexing ,
- GaAs Substrate ,
- Communication Nodes ,
- Optical Networks ,
- Chip Area ,
- Fused Silica Substrate ,
- Electrical Interconnection
- Author Keywords
Contents Keywords assist with retrieval of results and provide a means to discovering other relevant content. Learn more.
- IEEE Keywords
- Index Terms
- Free-space Optical Communication ,
- Optical Interconnects ,
- Prototype ,
- Optical System ,
- Circuit Board ,
- Interconnected Systems ,
- Transmission Loss ,
- Link Bandwidth ,
- Vertical-cavity Surface-emitting Lasers ,
- Energy Efficiency ,
- Low Loss ,
- Waveguide ,
- Numerical Aperture ,
- Arbitration ,
- Optical Power ,
- Printed Circuit Board ,
- Large-scale Systems ,
- Aperture Size ,
- Beam Divergence ,
- Point-to-point Links ,
- Microlens Array ,
- Wavelength Division Multiplexing ,
- GaAs Substrate ,
- Communication Nodes ,
- Optical Networks ,
- Chip Area ,
- Fused Silica Substrate ,
- Electrical Interconnection
- Author Keywords
