Abstract
We succeeded in obtaining gas discharge in 250, 150, and 50μm bore-diameter hollow-core fibers by using longitudinal DC excitation. Stable glow discharges of at least several minutes were observed for these hollow-core fibers, and a flash glow was also observed for a hollow-core capillary with a diameter of ∼20μm. Breakdown of helium and argon gases in a 26.2cm-length 250μm-inner-diameter hollow-core fiber was achieved with a voltage of less than 30kV. Breakdown voltages of helium and argon gases were measured for various bore-sizes, fiber-lengths, and a pressure range of from below 1 to 50 Torr. Experimental results deviated from previous theoretical models and further theoretical and experimental investigations are needed to understand the unique characteristics of gas-discharge in miniature capillaries with bore-diameter below 250μm.
| Original language | English |
|---|---|
| Title of host publication | 19th International Conference on Optical Fibre Sensors |
| Volume | 7004 |
| DOIs | |
| Publication status | Published - 26 Jun 2008 |
| Event | 19th International Conference on Optical Fibre Sensors - Perth, WA, Australia Duration: 15 Apr 2008 → 18 Apr 2008 |
Conference
| Conference | 19th International Conference on Optical Fibre Sensors |
|---|---|
| Country/Territory | Australia |
| City | Perth, WA |
| Period | 15/04/08 → 18/04/08 |
Keywords
- Capillary
- Fiber laser
- Gas breakdown
- Gas laser
- Glow discharge
- Hollow-core fiber
- Photonic bandgap fiber
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering