Patent ID: 6349103
Filing Date: 2002-02-19
Classification: H01S,H04B

Abstract:
An optical transmission apparatus, comprising:a plurality of lasers operating near standardized frequencies for different channels, each of said lasers having at least one output outputting optical signals; a multiplexer having a plurality of inputs and at least one output, each one of said inputs being connected to a respective one of said outputs of said lasers, said multiplexer multiplexing said signals output from said lasers and outputting said multiplexed signals from said at least one output of said multiplexer; an etalon filter being connected to said at least one output of said multiplexer, said etalon filter receiving said multiplexed output signals from said at least one output of said multiplexer, said etalon filter outputting equally spaced references at said standardized frequencies in dependence upon said signals received from said multiplexer; a controller being connected to said etalon filter, said controller controlling said lasers in dependence upon signals received from said etalon filter, said controller controlling said lasers to automatically operate at said standardized frequencies to generate outputs of predetermined levels; a demultiplexer receiving said multiplexed output signals from said at least one output of said multiplexer, said demultiplexer demultiplexing said multiplexed output signals; and a receiver receiving said demultiplexed signals from said demultiplexer.