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