Photonic filter bank for high-speed analog-to-digital...

Details Photonic filter bank for high-speed analog-to-digital... Photonic filter bank for high-speed analog-to-digital...

2011-07-05

2011-07-05

Nguyen, Linh V (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Using optical device,

C341S118000, C341S120000, C341S121000, C341S155000

Reexamination Certificate

active

07973688

ABSTRACT:
An analog to digital converter (ADC) structure and method includes a photonic filter bank having at least two filters. The at least two filters are configured to create a corresponding spectral tributary from an input signal at a target rate, and the at least two filters are configured to exhibit orthogonality properties between respective tributaries. An optical/electrical (O/E) converter is coupled to each of the at least two filters in a respective spectral tributary to convert an optical input to an electrical output. An analog to digital converter (ADC) is coupled to each of the O/E converters in a respective spectral tributary to sample the electrical output at a fraction of a target rate and to convert a sampled analog electrical output into a digital signal. A synthesis filter is coupled to each of the ADCs in a respective spectral tributary to reconstruct the input signal digitally at the target rate.

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