Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)01:20

¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)

When proton-coupled carbon-13 spectra are simplified by a broadband proton decoupling technique, structural information about the coupled protons is lost. Distortionless enhancement by polarization transfer (DEPT) is a technique that provides information on the number of hydrogens attached to each carbon in a molecule. While the DEPT experiment utilizes complex pulse sequences, the pulse delay and flip angle are specifically manipulated. The resulting signals have different phases depending on...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Comment on Sun et al. SGLT2i Versus Metformin for Delirium Prevention in Type 2 Diabetes: A Real-World, Head-to-Head Comparative Study. Diabetes Care 2025;48:1361-1369.

Diabetes care·2026
Same author

From Digital Anxiety to Empowerment in Older Adults: Cross-Sectional Survey Study on Psychosocial Drivers of Digital Literacy.

JMIR aging·2026
Same author

The O-acetylation on phage tail-spike protein digested penta-saccharide from Acinetobacter baumannii SK44 plays a critical role in triggering pro-inflammatory immune response.

Carbohydrate polymers·2025
Same author

Antirheumatic Drugs in Reproduction, Pregnancy, and Lactation-What Do we Know and What Should we Investigate Next?

International journal of rheumatic diseases·2025
Same author

Construction of 4-D FMCW LiDAR images using narrow linewidth extended cavity DBR laser with highly linear wavelength sweeping.

Optics express·2025
Same author

Metformin for Treatment of Knee Osteoarthritis in Patients With Overweight or Obesity.

JAMA·2025

Related Experiment Video

Updated: May 23, 2026

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

PMD tolerant direct-detection polarization division multiplexed OFDM systems with MIMO processing.

Chia-Chien Wei1, Chun-Ting Lin, Chih-Yun Wang

  • 1Department of Photonics, National Sun Yat-sen University, Kaohsiung, Taiwan. ccwei@mail.nsysu.edu.tw

Optics Express
|March 29, 2012
PubMed
Summary

This study introduces a novel direct-detection polarization division multiplexed OFDM scheme that eliminates the need for dynamic polarization control. The new method is robust against polarization mode dispersion and signal fading, simplifying optical communication systems.

More Related Videos

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
07:56

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

Quasi-light Storage for Optical Data Packets
07:45

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

Related Experiment Videos

Last Updated: May 23, 2026

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

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
07:56

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

Quasi-light Storage for Optical Data Packets
07:45

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

Area of Science:

  • Optical communication systems
  • Signal processing in optical networks
  • Advanced modulation techniques for fiber optics

Background:

  • Dynamic polarization control is a significant challenge in polarization-diverse receivers for optical communication systems.
  • Polarization mode dispersion (PMD) and signal fading can degrade the performance of optical transmission systems.
  • Orthogonal frequency-division multiplexing (OFDM) is a widely used modulation technique, but its integration with polarization multiplexing requires careful design.

Purpose of the Study:

  • To propose and analyze a novel direct-detection polarization division multiplexed OFDM (PDM-OFDM) scheme.
  • To eliminate the requirement for dynamic polarization control at the receiver.
  • To enhance the robustness of the system against polarization mode dispersion (PMD) and signal fading.

Main Methods:

  • A direct-detection PDM-OFDM scheme is proposed, utilizing polarization-orthogonal reference carriers with a frequency difference equal to one subcarrier spacing.
  • A novel multiple-input multiple-output (MIMO) algorithm is employed to eliminate interference from adjacent subcarriers.
  • Empty tones are inserted among subcarriers to mitigate penalties associated with high channel matrix condition numbers.

Main Results:

  • The proposed scheme avoids signal fading and eliminates adjacent subcarrier interference.
  • Inserting empty tones reduces the penalty caused by high channel matrix condition numbers.
  • A polarization-dependent OSNR penalty of less than 3.6 dB at a bit error rate (BER) of 10⁻³ was achieved with empty tones inserted every 8 subcarriers.
  • Numerical simulations confirmed that chromatic dispersion (16 × 10³ ps/nm) and differential group delay (300 ps) do not induce additional penalties.

Conclusions:

  • The proposed direct-detection PDM-OFDM scheme offers a simplified receiver architecture by removing the need for dynamic polarization control.
  • The scheme demonstrates significant robustness against PMD and chromatic dispersion, making it suitable for high-speed optical communication.
  • The integration of a novel MIMO algorithm and empty tone insertion effectively combats signal fading and channel impairments.