US Patent Application 17739681. WAVELENGTH-DIVISION MULTIPLEXED LINKS WITH BUILT-IN CLOCK FORWARDING simplified abstract

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WAVELENGTH-DIVISION MULTIPLEXED LINKS WITH BUILT-IN CLOCK FORWARDING

Organization Name

NVIDIA Corporation

Inventor(s)

Mir Ashkan Seyedi of Atlanta GA (US)

WAVELENGTH-DIVISION MULTIPLEXED LINKS WITH BUILT-IN CLOCK FORWARDING - A simplified explanation of the abstract

This abstract first appeared for US patent application 17739681 titled 'WAVELENGTH-DIVISION MULTIPLEXED LINKS WITH BUILT-IN CLOCK FORWARDING

Simplified Explanation

The patent application describes a system that includes an optical transmitter and an optical receiver.

  • The optical transmitter receives optical wavelengths from a multiple wavelength generator and generates transmitted wavelengths, including data wavelengths and excess wavelengths.
  • The optical receiver includes photodetectors that receive the transmitted wavelengths.
  • The photodetectors include a common photodetector that is connected to at least two receiver components.
  • The common photodetector obtains a set of unmodulated carrier frequencies from the receiver components and determines clock information from them.
  • The clock information is determined by obtaining a heterodyne frequency from the set of unmodulated carrier frequencies.
  • The heterodyne frequency is used to synchronize the optical transmitter and the optical receiver.


Original Abstract Submitted

A system can include an optical transmitter having transmitter components and an optical receiver having receiver components and photodetectors. The optical transmitter is configured to receive optical wavelengths of radiation from a multiple wavelength generate, such as a laser, and generate transmitted wavelengths including data wavelengths and excess wavelengths. Each photodetector is configured to receive at least one transmitted wavelength. The photodetectors can include a common photodetector operatively coupled to at least two receiver components and configured to obtain a set of unmodulated carrier frequencies (e.g., a pair of unmodulated carrier frequencies) from the at least two receiver components, and determine clock information therefrom. The clock information can be determined by obtaining a heterodyne frequency from the set of unmodulated carrier frequencies. The heterodyne frequency can be used to synchronize the optical transmitter and the optical receiver.

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