Related Experiment Video
Updated: Feb 10, 2026
12:18
Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
Published on: August 5, 2013
17.5K
Triple-clad photonic lanterns for mode scaling
Optics Express
|May 27, 2018
Summary
We developed new triple-clad photonic lanterns to increase the number of optical modes. This innovation simplifies the manufacturing of large photonic lanterns, achieving a 10-mode device with low losses.
Area of Science:
- Photonics
- Optical Engineering
- Fiber Optics
Background:
- Photonic lanterns are crucial for mode division multiplexing.
- Fabricating large photonic lanterns typically requires complex adiabatic tapering.
Purpose of the Study:
- To introduce a novel triple-clad photonic lantern design.
- To overcome the limitations of adiabatic tapering in large photonic lantern fabrication.
Main Methods:
- Proposed a novel triple-clad structure for photonic lanterns.
- Fabricated a 10-mode photonic lantern using the new design.
Main Results:
- The novel structure alleviates the need for adiabatic tapering.
- Demonstrated a 10-mode photonic lantern with insertion losses between 0.6 and 2.0 dB.
- Achieved a record-low pairwise mode-dependent loss of 4 dB in the C-band.
Conclusions:
- Triple-clad photonic lanterns offer a simplified fabrication route for mode scaling.
- The demonstrated device shows excellent performance for multi-mode fiber applications.
More Related Videos
Related Concept Videos
01:07What is a Mode?
26.5K
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,...
26.5K
02:41pH Scale
80.2K
Hydronium and hydroxide ions are present both in pure water and in all aqueous solutions, and their concentrations are inversely proportional as determined by the ion product of water (Kw). The concentrations of these ions in a solution are often critical determinants of the solution’s properties and the chemical behaviors of its other solutes. Two different solutions can differ in their hydronium or hydroxide ion concentrations by a million, billion, or even trillion times. A common means of...
80.2K
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
01:06Scalar and Vector Triple Products
4.5K
Two vectors can be multiplied using a scalar product or a vector product. The resultant of a scalar product is scalar, while with vector products, the resultant is a vector. These rules of the scalar or vector product between two vectors can be applied to multiple vectors to obtain meaningful combinations. The scalar triple product is the dot product of a vector with the cross product of two vectors.
The scalar triple product is the dot product of a vector with the cross product of two vectors....
The scalar triple product is the dot product of a vector with the cross product of two vectors....
4.5K
01:03Modes of Standing Waves - I
4.1K
A close look at earthquakes provides evidence for the conditions appropriate for resonance, standing waves, and constructive and destructive interference. A building may vibrate for several seconds with a driving frequency matching the building's natural frequency of vibration; this produces a resonance that results in one building collapsing while the neighboring buildings do not. Often, buildings of a certain height are devastated, while other taller buildings remain intact. This...
4.1K
01:04Modes of Standing Waves: II
1.8K
The starting point for expressing the modes of standing waves is understanding the boundary conditions that the waves must follow. The boundary conditions are derived from the physical understanding of how the standing waves are sustained, that is, how the vibrating particles of the medium behave at the boundaries imposed on them.
For a tube open at one end and closed at the other filled with air, the modes are such that there is always an antinode at the open end and a node at the closed end....
For a tube open at one end and closed at the other filled with air, the modes are such that there is always an antinode at the open end and a node at the closed end....
1.8K