The design and analysis of an optoelectronic broadband matrix switch
Date
1987
Authors
Strachan, James Alan
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Abstract
Optoelectronic matrix switches using switching photodiodes have a number of distinct advantages which make them attractive for broadband switching applications. Their broad frequency bandwidth capabilities, high isolation on/off ratio and low crosstalk in the input and output distribution lines readily lead to the construction of large dimension matrix switches. This thesis presents the design and analysis of a 2 x 4 broadband optoelectronic matrix switch operating at a wavelength of 1.55 µm . The switch is constructed utilizing InGaAs/InP avalanche photodiodes and an InGaAsP laser source modulated with several signals to test the performance of the switch over a wide range of frequencies. The switch is analyzed using conventional mathematical techniques for loss , SNR and frequency response and a system model is developed to characterize the overall performance. The results are then compared to actual measured data and summarized.