Jove
Visualize
Contact Us

Related Concept Videos

Characteristics of OpAmp01:17

Characteristics of OpAmp

The operational amplifier, commonly known as an op-amp, is a specially designed electronic circuit component. Its purpose is to work in conjunction with other circuit elements to execute a defined signal-processing operation. Consider an equivalent circuit model of an op-amp, as depicted in Figure 1; the output section comprises a voltage-controlled source in parallel with the output resistance Ro.
Propagation Speed of Electromagnetic Waves01:30

Propagation Speed of Electromagnetic Waves

Electromagnetic waves are consistent with Ampere's law. Assuming there is no conduction current Ampere's law is given as:
Cascaded Op Amps01:16

Cascaded Op Amps

Operational amplifiers (op-amps) are versatile electronic components that can be interconnected in a cascade - one after another in a linear sequence. This cascading is possible due to their infinite input resistance and zero output resistance, allowing them to maintain their input-output relationships even when connected in series.
In a cascaded system, each op-amp is referred to as a stage. The output of one stage drives the input of the subsequent stage. As the input signal passes through...
Intensity Of Electromagnetic Waves01:22

Intensity Of Electromagnetic Waves

The energy transport per unit area per unit time, or the Poynting vector, gives the energy flux of an electromagnetic wave at any specific time. For a plane electromagnetic wave with E0 and B0 as the peak electric and magnetic fields and traveling along the x-axis, the time-varying energy flux can be given by the following equation:

You might also read

Related Articles

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

Sort by
Same author

[Analysis of risk factors and construction of predictive model for deep vein thrombosis after core decompression in patients with osteonecrosis of the femoral head].

Zhonghua yi xue za zhi·2026
Same author

A sudden change and recovery in the magnetic environment around a repeating fast radio burst.

Science (New York, N.Y.)·2026
Same author

[A case of double-ventricular arrhythmogenic cardiomyopathy with mitral annular disjunction].

Zhonghua xin xue guan bing za zhi·2026
Same author

[Clinical characteristics and maternal and fetal outcomes of pregnancy complicated with chronic kidney disease stage 4-5].

Zhonghua fu chan ke za zhi·2025
Same author

[Identifying risk factors for acute graft-versus-host disease in patients with acute myeloid leukemia undergoing haploidentical hematopoietic stem cell transplantation].

Zhonghua xue ye xue za zhi = Zhonghua xueyexue zazhi·2025
Same author

[Expert consensus on the treatment of chronic rhinosinusitis with nasal polyps with biologics (2025)].

Zhonghua er bi yan hou tou jing wai ke za zhi = Chinese journal of otorhinolaryngology head and neck surgery·2025
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 Experiment Video

Updated: Jun 22, 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

Colourless adaptively modulated optical OFDM transmitters using SOAs as intensity modulators.

J L Wei1, X L Yang, R P Giddings

  • 1School of Electronic Engineering, Bangor University, Dean street, Bangor, LL57 1UT, UK.

Optics Express
|May 26, 2009
PubMed
Summary

This study demonstrates novel semiconductor optical amplifier (SOA) intensity modulators for colorless adaptively modulated optical orthogonal frequency division multiplexing (AMOOFDM) transmitters. These SOAs enable over 30 Gb/s transmission in dispersion-free systems without external amplifiers or compensators.

More Related Videos

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: Jun 22, 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

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 communications engineering
  • Photonics and optoelectronics
  • Signal processing for optical networks

Background:

  • Semiconductor optical amplifiers (SOAs) are explored as intensity modulators for optical orthogonal frequency division multiplexing (OFDM) signals.
  • Investigating wavelength-dependent performance in intensity-modulated direct-detection (IMDD) single-mode fiber (SMF) systems is crucial for advanced optical networks.

Purpose of the Study:

  • To investigate the transmission performance of adaptively modulated optical OFDM (AMOOFDM) signals using SOAs as intensity modulators.
  • To develop a theoretical SOA model accounting for gain saturation and spectral dynamics for optimizing operating conditions across a wide wavelength range (1510 nm-1590 nm).

Main Methods:

  • Development of a theoretical SOA model incorporating optical gain saturation and gain spectral dynamics.
  • Identification of optimal SOA operating conditions for various wavelengths within the 1510 nm-1590 nm range.
  • Experimental validation of SOA performance as intensity modulators in IMDD SMF systems.

Main Results:

  • The developed SOA model accurately describes device behavior under varying conditions.
  • Optimal SOA operating points were identified, enabling colorlessness within the 1510 nm-1590 nm window.
  • Adaptively modulated optical OFDM transmitters utilizing SOAs achieved transmission speeds exceeding 30 Gb/s over 60 km of SMF without optical amplification or dispersion compensation.

Conclusions:

  • Semiconductor optical amplifier intensity modulators offer a viable solution for cost-effective and colorless AMOOFDM transmitters.
  • The findings pave the way for simplified optical communication systems by eliminating the need for external amplification and dispersion compensation.
  • This technology supports high-speed data transmission, advancing the development of next-generation optical networks.