Intrachip optical interconnects based on a wavelength multiplexed two-layer structure

Shizhuo Yin

doi:10.1117/12.326851

9 October 1998 Intrachip optical interconnects based on a wavelength multiplexed two-layer structure

Shizhuo Yin

Proceedings Volume 3470, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications IV; (1998) https://doi.org/10.1117/12.326851
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

In this paper, a design on intra-chip optical interconnects based on a wavelength multiplexed two layer structure is presented. The key to this approach is the use of one planar waveguide, covering the whole multichip module and its use of unique tunable diffractive optics elements. In the bottom layer, there are multiple modules. In each module, there is a light receiver to receive the clock signal and another to receive information from other individual processing units (IPUs). There is also a light emitter to send information out to other IPUs. The vertical light emitter will send the signal to the upper layer polymer 2D planar waveguide. To determine which IPUs receive information, a set of fast speed wavelength tunable filters will be fabricated on the polymer waveguide and integrated together with each light source. As a result, we can realize arbitrary reconfigurable interconnects between the entire individual processing units. For examples, is the wavelength for the first processing unit is tuned at (lambda) ₂, only the second processing unit can receive this signal because only the second volume holographic grating can diffract wavelength (lambda) ₂. Since all tunable filters can be addressed simultaneously, the whole interconnect system is parallel processing.

Citation Download Citation

Shizhuo Yin "Intrachip optical interconnects based on a wavelength multiplexed two-layer structure", Proc. SPIE 3470, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications IV, (9 October 1998); https://doi.org/10.1117/12.326851

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KEYWORDS

Optical interconnects

Clocks

Crystals

Tunable filters

Fiber Bragg gratings

Planar waveguides

Holography

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