DWDM Block Converted Return Transmission Performance (2000)
By John J. Kenny, Mark A. Linford, ANTEC Corporation
Block conversion and dense wavelength division multiplexing (DWDM) have each been used to concentrate multiple independent return path signals onto a small number of fibers. The combination of these technologies results in very fiber-efficient return path transmission. Performance evaluation of a return path system using these combined technologies could require a prohibitively large number of independent signal sources to load the system. Therefore, a loopback technique has been developed to minimize the amount of test equipment required for transmission testing. This technique was used to characterize a DWDM block converted return path link carrying 72 independent 5 to 42 MHz return signals.
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