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Optimum Design and Performance Analysis of Integrated Optical Crossbar Network

Author: FuLiLi
Tutor: SongZhe
School: Liaoning Normal University
Course: Optics
Keywords: Crossbar Network Optical switch Integrated Optimization Manufacture
CLC: TN929.1
Type: Master's thesis
Year: 2010
Downloads: 13
Quote: 1
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Abstract

With the growing demand of information, the establishment of a high-speed information processing system in today's information age, has become very urgent. Traditional electrical interconnect network bandwidth is limited, serious crosstalk, high-power problem exists, the people began to explore new techniques to improve the interconnect bandwidth and reduce the communication delay. Optical interconnects as a new way to interconnect with many electrical interconnection incomparable advantages of high bandwidth, low power consumption, small delay, anti-interference ability. Currently, the free-space transmission of optical interconnection network is one of the main research directions. However, due to the application of light in the optical communication switching interconnection networks are mostly composed of discrete elements, there is a large insertion loss, and calibration is difficult to install, susceptible to the environmental impact and other shortcomings in the practical application largely limit . Therefore, our group has been committed to the integration of the optical interconnect network. This thesis is based on the single piece of crystal integrated N × N crossbar switch network control algorithm 'single crystal integrated Crossbar network optimized design, which specifically includes: 1. Single crystal integrated Crossbar network of principle: the use of crystal birefringence and total internal double reflection effect to achieve the interconnection between the adjacent two switch-level, the use of the linear electro-optic effect of the crystal to control the working status of the switch, in order to achieve the functionality of the network. Introduced two network structures: the structure of normal incidence and oblique incidence structure. The crystal size and the practical application of the device needs two structures Crossbar network optimization design. For vertical incidence configuration, there is discussion of the network size and channel spacing, and the relationship between the half-wave voltage, the number of channels, the crystal structure and size, derived angle θ of the optical axis and the reflecting surface in the range of 35 ° LT; 0 LT; 45 °. For oblique incidence structure, network size and half-wave voltage, the relationship between the angle of the incident o optical channel and e optical channel △ oe o optical channel spacing, e optical channel spacing, number of channels, crystal structure and size, also consider the Fresnel reflection loss, draw the angle θ of the optical axis and the reflecting surface in the range of 35 ° LT; 0 LT; 45 °, the input surface and the reflecting surface of the angle Y in the range of γ ≈ θ , o light incident angle range of | αoi | the -5 ° lt; αoi lt; 5 ° LiNbO3 crystal produced a normal incidence structure 3 × 3Crossbar. The crystal size of 16mm × 61mm × lmm, θ angle of 35 °, and the electrode size of 1mm × 16mm. Experimental results show that: by controlling the switching state, the interconnection between any input and output can be realized on a network loss of 40%, and the crosstalk is-14dB, and a loss and crosstalk cause was analyzed.

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