Related Experiment Video
Updated: Jun 22, 2026

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
Published on: November 22, 2019
Transient propagation mode of fiber fuse leaving no voids
Abstract:
Fiber fuse ignition and self-termination through a single-mode silica glass fiber pumped by 1480 nm light were observed in situ. The formation of void-free segments is discussed on the basis of examinations of corresponding damage sites and in comparison with known periodic void formation. As an optical discharge pumped at near the propagation threshold power loses its energy, it frequently emits a light pulse instead of forming periodic voids. A similar mode was found just before a stable optical discharge appeared during fiber fuse ignition. This transient mode conversion is the origin of the previously reported irregular void patterns.
Related Concept Videos
Propagation Speed of Electromagnetic Waves
Series R—L Circuit Transients
Using Kirchhoff's Voltage Law (KVL) to analyze this circuit helps determine the total asymmetrical fault current, which consists of...
Fiber Reinforced Concrete
Reclosers and Fuses
A comprehensive protection scheme for radial distribution...
Lossless Lines
MOSFET: Depletion Mode
The primary characteristic of depletion-mode MOSFETs is their ability to conduct current between the drain and source terminals without gate bias. This inherent conductivity arises...

