Optical receiver design for optical-fibre SCM systems
In this chapter, the basis for the design and realisation of optical fibre receivers suited to subcarrier multiplexing (SCM) applications is considered, and circuit noise modelling and optimisation are discussed in detail. A relation has been established that allows the optical receiver's equivalent input noise current spectral density to be calculated by using the noise-matching network's small signal parameters and the front-end noise parameters Fmin, Yopt, and Rn. From this, it is possible to derive the optimum noise matching condition for an optical receiver which differs from the optimum matching for the minimum noise figure.
Optical receiver design for optical-fibre SCM systems, Page 1 of 2
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