Related Experiment Video
Updated: Feb 15, 2026
09:39
In-situ Tapering of Chalcogenide Fiber for Mid-infrared Supercontinuum Generation
Published on: May 27, 2013
12.8K
Numerical study on supercontinuum generation by different optical modes in AsSe2-As2S5 chalcogenide microstructured
Applied Optics
|February 6, 2018
Summary
Supercontinuum generation in chalcogenide microstructured optical fibers is optimized by using different optical modes. This research guides mid-infrared supercontinuum generation experiments.
Area of Science:
- Nonlinear Optics
- Materials Science
- Optical Engineering
Background:
- Supercontinuum generation (SCG) is crucial for various spectroscopic applications.
- Chalcogenide microstructured optical fibers (MOFs) offer unique nonlinear properties for extended SCG.
Purpose of the Study:
- To numerically investigate SCG in AsSe2-As2S5 chalcogenide MOFs.
- To analyze the influence of different optical modes (LP01, LP11, LP31) on SCG.
- To explore the impact of pump wavelength, peak power, fiber length, and core diameter on SC spectral range.
Main Methods:
- Numerical simulations of SCG in chalcogenide MOFs.
- Analysis of chromatic dispersion and effective nonlinearity variations.
- Parametric study involving pump wavelength, peak power, and fiber characteristics.
Main Results:
- Different optical modes significantly alter SCG mechanisms and spectral range.
- A maximum SC spectral range of 12.931 μm (1.389–14.320 μm) was achieved using the LP11 mode.
- Optimized SCG extends into the mid-infrared waveband (>10 μm).
Conclusions:
- Optical mode selection is critical for tailoring SCG in chalcogenide MOFs.
- The findings provide valuable guidance for experimental mid-infrared SCG.
- This work facilitates the development of novel broadband light sources.
Related Concept Videos
01:24Numerical Calculations
1.2K
In engineering applications, the representation of the numerical value is critical. Presenting or reporting the answer is one of the essential parts of engineering practices. Numerical calculations are performed using handheld calculators or computers since numerically accurate answers are always preferred.
The solution to a problem is obtained using different methods. While manually solving algebraic symbols is one of the most common methods, the graphical method is often preferred. Computers...
The solution to a problem is obtained using different methods. While manually solving algebraic symbols is one of the most common methods, the graphical method is often preferred. Computers...
1.2K
01:07What is a Mode?
26.7K
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,...
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,...
26.7K
01:21Pilot and Numeric Relaying
496
Pilot relaying is a type of differential protection used in power systems. It compares electrical quantities at the terminals of equipment via a communication channel instead of direct relay interconnection. This method is essential for transmission lines where the terminals are far apart, typically up to 80 km for lines with 69 to 115 kV ratings. Four types of communication channels are used for pilot relaying:
496
00:59How Data are Classified: Numerical Data
38.6K
Data that are countable or measurable in specific units are called numerical or quantitative data. Quantitative data are always numbers. Quantitative data are the result of counting or measuring the attributes of a population. Amount of money, pulse rate, weight, number of people living in a town, and number of students who opt for statistics are examples of quantitative data.
Quantitative data may be either discrete or continuous. All quantitative data that take on only specific numerical...
Quantitative data may be either discrete or continuous. All quantitative data that take on only specific numerical...
38.6K
01:14Ventilatory Modes
1.6K
Mechanical ventilators are life-saving devices that support or replace spontaneous breathing. They deliver breaths to patients through varying methods known as ventilator modes. Understanding these modes is critical for healthcare providers managing patients with respiratory failure.
There are three ventilatory modes: full support, partial support, and spontaneous. These are described below.
Full Support Modes
Full support modes include controlled mechanical ventilation, continuous mandatory...
There are three ventilatory modes: full support, partial support, and spontaneous. These are described below.
Full Support Modes
Full support modes include controlled mechanical ventilation, continuous mandatory...
1.6K
01:48Classification of Skeletal Muscle Fibers
59.6K
Skeletal muscles continuously produce ATP to provide the energy that enables muscle contractions. Skeletal muscle fibers can be categorized into three types based on differences in their contraction speed and how they produce ATP, as well as physical differences related to these factors. Most human muscles contain all three muscle fiber types, albeit in varying proportions.
Slow-Twitch Muscle Fibers
Slow oxidative, muscle fibers appear red due to large numbers of capillaries and high levels of...
Slow-Twitch Muscle Fibers
Slow oxidative, muscle fibers appear red due to large numbers of capillaries and high levels of...
59.6K