Optical fiber's ability to modulate light quickly allows network designers to choose a wavelength ... So these light beams have spin angular momentum because of the rotation of the electric field.

More information: Zhengsen Ruan et al, Flexible orbital angular momentum mode switching in multimode fibre using an optical neural network chip, Light: Advanced Manufacturing (2024). DOI: 10.37188 ...

A team of researchers has now been able to follow the flow of angular momentum during ultrafast optical demagnetization in a ferrimagnetic iron-gadolinium alloy in great detail, in order to ...

The team of researchers that produced infinite-capacity wireless vortex beams has deployed the same technology in optical fibers, using twisted laser beams to transfer data at 1.6 terabits per ...

First tunable, chip-based 'vortex microlaser' and detector Date: May 18, 2020 Source: University of Pennsylvania Summary: To break through a looming bandwidth bottleneck, engineers are exploring ...

But now physicists from Trinity College Dublin have added a twist to the existing canon by demonstrating a new form of light with a total angular momentum that has a half-integer spin. In other ...

New Australian research offers a tantalizing promise–fiber optics that could make Internet speeds 100 times faster. The research relies on fiber optics that imitate the basic structure of life: DNA.

In technical terms, electromagnetic radiation -- radio, microwaves, visible light, X-rays -- can have two kinds of spin: Spin angular momentum (SAM) and orbital angular momentum (OAM).

Spin angular momentum is a familiar property of light, being manifest in the polarization of the light. ... The number of data channels in a fibre-optic cable can be boosted by sending down light with ...