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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
09:43

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Multi-channel multi-carrier generation using multi-wavelength frequency shifting recirculating loop.

Xinying Li1, Jianjun Yu, Ze Dong

  • 1Department of Communication Science and Engineering, Fudan University, 220 Handan Road, Shanghai 200433, China.

Optics Express
|October 6, 2012
PubMed
Summary
This summary is machine-generated.

We developed a new method to create optical frequency-locked multi-channel multi-carriers (MCMC) for WDM superchannels. This technique successfully generated dual-channel MCMC, capable of carrying high-speed 50-Gb/s optical signals.

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Last Updated: May 18, 2026

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Published on: March 20, 2017

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06:42

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07:45

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Published on: February 6, 2014

Area of Science:

  • Photonics
  • Optical Communications
  • Signal Processing

Background:

  • Advanced optical communication systems require efficient generation of multiple, stable optical carriers.
  • Wavelength Division Multiplexing (WDM) superchannels demand frequency- and phase-locked multi-carrier sources for high-capacity data transmission.

Purpose of the Study:

  • To propose and demonstrate a novel scheme for generating optical frequency-locked multi-channel multi-carriers (MCMC).
  • To validate the use of these MCMC for high-speed optical data transmission.

Main Methods:

  • Utilizing a recirculating frequency shifter (RFS) loop.
  • Employing multi-wavelength frequency shifting single side band (MWFS-SSB) modulation with a dual-wavelength optical seed source.

Main Results:

  • Successfully generated dual-channel MCMC, with one channel containing 28 and the other 29 subcarriers at 25-GHz spacing.
  • Demonstrated the MCMC source's capability to carry a 50-Gb/s optical polarization-division-multiplexing quadrature phase shift keying (PDM-QPSK) signal.

Conclusions:

  • The proposed RFS loop scheme effectively generates frequency- and phase-locked MCMC suitable for WDM superchannels.
  • This method provides a viable source for high-capacity optical communication systems.