发明名称 Dual-drive modulator
摘要 A transmitter module includes a processor configured to receive input data, and determine input values corresponding to the input data; a digital-to-analog converter configured to receive the input values from the processor, and generate first and second voltage signals based on the input values; a laser configured to output light; a Mach-Zehnder modulator configured to receive the light from the laser and the first and second voltage signals from the digital-to-analog converter, and modulate the light based on the first and second voltage signals to generate a modulated optical signal that includes distortion; and a filter configured to receive the modulated optical signal from the modulator, process the modulated optical signal to reduce or eliminate the distortion and produce an output optical signal, and output the output optical signal.
申请公布号 US9094129(B2) 申请公布日期 2015.07.28
申请号 US201213630831 申请日期 2012.09.28
申请人 Infinera Corporation 发明人 Krause David James
分类号 H04B10/50;H04B10/516;H04B10/588 主分类号 H04B10/50
代理机构 Harrity & Harrity LLP 代理人 Harrity & Harrity LLP ;Soltz David L.
主权项 1. An optical system, comprising: a transmitter module comprising: a processor configured to: receive input data, anddetermine input values corresponding to the input data; a digital-to-analog converter configured to: receive the input values from the processor, andgenerate first and second voltage signals based on the input values; a laser configured to output light; a Mach-Zehnder modulator configured to: receive the light from the laser and the first and second voltage signals from the digital-to-analog converter, andmodulate the light based on the first and second voltage signals to generate a modulated optical signal that includes distortion; and a filter configured to: receive the modulated optical signal from the modulator,process the modulated optical signal to reduce or eliminate the distortion and produce an output optical signal, andoutput the output optical signal, where the digital-to-analog converter is a first digital-to-analog converter, the first digital-to-analog converter being configured to: receive a first set of the input values from the processor, and generate the first and second voltage signals based on the first set of input values, the transmitter module further comprising: a second digital-to-analog converter configured to: receive a second set of the input values from the processor, and generate third and fourth voltage signals based on the second set of the input values, where the modulator is a first modulator, the first modulator being configured to: receive a first portion of the light from the laser and the first and second voltage signals from the first digital-to-analog converter, and modulate the first portion of the light based on the first and second voltage signals to produce a first modulated optical signal; the transmitter module further comprising: a second modulator configured to: receive a second portion of the light from the laser and the third and fourth voltage signals from the second digital-to-analog converter, and modulate the second portion of the light based on the third and fourth voltage signals to produce a second modulated optical signal, where the transmitter module further comprises:a combiner configured to:receive the first modulated optical signal and the second modulated optical signal, andcombine the first modulated optical signal and the second modulated optical signal to produce the output optical signal, andwhere the combiner is further configured to reduce or eliminate the distortion from the first modulated optical signal or the second modulated optical signal.
地址 Sunnyvale CA US