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

What is a Mode?01:07

What is a Mode?

The mode is one of the commonly used measures of a central tendency. It is defined as the most frequent value in a data set.
There can be more than one mode in a data set if multiple values have the same highest frequency. For instance, suppose that the Statistics exam scores of 20 students are: 50; 53; 59; 59; 63; 63; 72; 72; 72; 72; 72; 76; 78; 81; 83; 84; 84; 84; 90; 93. Here, the mode is 72, as it occurs most frequently, five times.
A data set with two modes is called bimodal. For example,...
Oscillations In An LC Circuit01:30

Oscillations In An LC Circuit

An idealized LC circuit of zero resistance can oscillate without any source of emf by shifting the energy stored in the circuit between the electric and magnetic fields. In such an LC circuit, if the capacitor contains a charge q before the switch is closed, then all the energy of the circuit is initially stored in the electric field of the capacitor. This energy is given by
LC Circuits01:21

LC Circuits

An LC circuit consists of an inductor and a capacitor, either in series or parallel. Consider a charged capacitor connected with an inductor in series. Before the switch is closed, all the energy of the circuit is stored in the electric field of the capacitor. When the switch is closed, the capacitor begins to discharge, producing a current in the circuit. The current, in turn, creates a magnetic field in the inductor. Because of the induced emf in the inductor, the current cannot change...
Confocal Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
MOSFET: Enhancement Mode01:22

MOSFET: Enhancement Mode

Enhancement-mode MOSFETs are pivotal components in electronics, distinguished by their capacity to act as highly efficient switches. They are part of the larger family of metal-oxide Semiconductor Field-Effect Transistors (MOSFETs). They are available in two types: p-channel and n-channel, each tailored to specific polarity operations.
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no current...
Load-frequency control01:28

Load-frequency control

Load-frequency control (LFC) is vital for maintaining power system stability, ensuring that frequency and power flows remain within acceptable limits during load changes. Turbine-governor control eliminates rotor accelerations and decelerations following load changes. However, a steady-state frequency error persists when the change in the turbine-governor reference setting is zero. In an interconnected power system, each area agrees to export or import a scheduled amount of power through...

You might also read

Related Articles

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

Sort by
Same author

Reaching the pinnacle of high-capacity optical transmission using a standard cladding diameter coupled-core multi-core fiber.

Nature communications·2025
Same author

1.6-Tbps low-power linear-drive high-density optical interface for machine learning/artificial intelligence.

Optics express·2025
Same author

Peta-bit-per-second optical communications system using a standard cladding diameter 15-mode fiber.

Nature communications·2021
Same author

Experimental characterization of group and phase delays induced by bending and twisting in multi-core fibers.

Optics letters·2021
Same author

Demonstration of terabit coherent on-chip optical interconnects employing mode-division multiplexing.

Optics letters·2021
Same author

Experimental demonstration of a 4,294,967,296-QAM-based Y-00 quantum stream cipher template carrying 160-Gb/s 16-QAM signals.

Optics express·2021

Related Experiment Video

Updated: May 8, 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

LCoS-based mode shaper for few-mode fiber.

Johannes von Hoyningen-Huene1, Roland Ryf, Peter Winzer

  • 1Bell Laboratories, Alcatel-Lucent, 791 Holmdel-Keyport Rd, Holmdel, NJ 07733, USA. jhh@tf.uni-kiel.de

Optics Express
|August 14, 2013
PubMed
Summary

Spatial light modulation addresses fiber modes for mode-division multiplexed systems. Amplitude and phase modulation offers lower crosstalk and insertion loss compared to phase-only modulation.

Area of Science:

  • Optical communications
  • Photonics
  • Fiber optics

Background:

  • Mode-division multiplexing (MDM) enables higher data transmission capacity by utilizing multiple spatial modes within a single optical fiber.
  • Effective management of individual fiber modes is crucial for the performance of MDM systems.
  • Spatial light modulation (SLM) offers a potential method for precise control over light propagation in optical fibers.

Purpose of the Study:

  • To theoretically compare the performance of phase-only SLM versus combined amplitude and phase SLM for selective fiber mode excitation.
  • To experimentally validate the theoretical findings using a Liquid Crystal on Silicon (LCoS) SLM.
  • To evaluate insertion loss and crosstalk for different SLM configurations in a multi-mode fiber system.

Main Methods:

More Related Videos

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
08:48

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy

Published on: November 22, 2019

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
14:18

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

Published on: February 28, 2016

Related Experiment Videos

Last Updated: May 8, 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

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
08:48

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy

Published on: November 22, 2019

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
14:18

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

Published on: February 28, 2016

  • Theoretical analysis comparing phase-only SLM with amplitude-phase SLM for addressing 11 LP modes in a fiber.
  • Experimental setup utilizing a Liquid Crystal on Silicon (LCoS) spatial light modulator.
  • Configuration of the LCoS SLM to operate as both a phase and amplitude modulator for selective mode excitation.

Main Results:

  • The study theoretically evaluates insertion loss and crosstalk for phase-only versus amplitude-phase SLM.
  • Experimental demonstration of selective excitation of specific fiber modes was achieved using the LCoS SLM.
  • The combined amplitude and phase modulation approach is shown to be advantageous for mode control.

Conclusions:

  • Spatial light modulation is a viable technique for addressing individual fiber modes in mode-division multiplexed systems.
  • Amplitude and phase modulation offers superior performance in terms of insertion loss and crosstalk compared to phase-only modulation.
  • LCoS SLM provides a flexible platform for implementing advanced mode manipulation in optical communication systems.