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US 2007/0165294 A1Published application
Integrated circuit for adjusting bias in optical transmitter with external modulator
AssigneeEmcore Corporation
InventorGustav Witzel
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AssigneeEmcore Corporation
InventorGustav Witzel
Estimating the term…
An integrated circuit microcontroller for use in an optical transmitter that generates a modulated optical signal for transmission over dispersive fiber optic links in which a broadband radio frequency signal input is applied to first and second RF inputs of an external modulator for modulating the output of a semiconductor laser. The single integrated circuit is a digital signal processor that performs analog to digital conversion, digital processing, and digital to analog conversion, for producing an analog signals coupled to the input of the modulator, the circuit independently adjusts the DC bias of the first and second RF inputs to control a characteristic of the optical signal, such as noise associated with composite second order (CSO) distortion as a remote receiver.
An integrated circuit for use in an optical transmitter that generates a modulated optical signal for transmission over a fiber optic link to a remote receiver, including:
Dependencies are inferred from the claim text.