Optical domain analog to digital conversion methods and apparatus

Vawter, Gregory A

Optical domain analog to digital conversion methods and apparatus

Patent · Tue May 13 04:00:00 EDT 2014

OSTI ID:1130967

Vawter, Gregory A

Methods and apparatus for optical analog to digital conversion are disclosed. An optical signal is converted by mapping the optical analog signal onto a wavelength modulated optical beam, passing the mapped beam through interferometers to generate analog bit representation signals, and converting the analog bit representation signals into an optical digital signal. A photodiode receives an optical analog signal, a wavelength modulated laser coupled to the photodiode maps the optical analog signal to a wavelength modulated optical beam, interferometers produce an analog bit representation signal from the mapped wavelength modulated optical beam, and sample and threshold circuits corresponding to the interferometers produce a digital bit signal from the analog bit representation signal.

Research Organization:: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC04-94AL85000

Assignee:: Sandia Corporation (Albuquerque, NM)

Patent Number(s):: 8,725,004

Application Number:: 13/359,300

OSTI ID:: 1130967

Country of Publication:: United States

Language:: English

References (10)

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