skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Pilot-aided feedforward data recovery in optical coherent communications

Patent ·
OSTI ID:1393155

A method and a system for pilot-aided feedforward data recovery are provided. The method and system include a receiver including a strong local oscillator operating in a free running mode independent of a signal light source. The phase relation between the signal light source and the local oscillator source is determined based on quadrature measurements on pilot pulses from the signal light source. Using the above phase relation, information encoded in an incoming signal can be recovered, optionally for use in communication with classical coherent communication protocols and quantum communication protocols.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-00OR522725
Assignee:
UT-Battelle, LLC
Patent Number(s):
9,768,88
Application Number:
14/849,675
OSTI ID:
1393155
Resource Relation:
Patent File Date: 2015 Sep 10
Country of Publication:
United States
Language:
English

References (3)

Receiver for coherent optical communication patent May 1992
Apparatus for Synchronizing Digital Signals of Coherent Optical Receiver patent-application June 2010
40Gbit/s coherent optical receiver using a Costas loop journal January 2012

Similar Records

Related Subjects