ABSTRACT
Massively parallel optical interconnections (Figure 5.1) are easily realized by imaging between an array of light sources and an array of photodetectors. 1 , 2 Because the propagating signal bandwidth is only affected by the capacitance of both light source and photodetector, ultrafast optical signal transmission is expected. In contrast, for electronics interconnections, the velocity of signal transmission depends on the capacitance per unit interconnection length. Therefore, the transmission bandwidth decreases as the interconnection length increases. Concept of free-space optical interconnections based on the imaging between the array of light sources and the array of photodetectors. https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781315220963/0c7fafc6-99e8-4ab6-a876-8ac6e1ee9367/content/fig5_1.tif"/>
