Details
| Original language | English |
|---|---|
| Pages | 265-280 |
| Number of pages | 16 |
| Publication status | Published - 24 Jun 1993 |
| Externally published | Yes |
| Event | 24th Annual Boulder Damage Symposium Laser-Induced Damage in Optical Materials: 1992 - Boulder, CO, USA Duration: 28 Oct 1992 → 30 Oct 1992 |
Conference
| Conference | 24th Annual Boulder Damage Symposium Laser-Induced Damage in Optical Materials: 1992 |
|---|---|
| City | Boulder, CO, USA |
| Period | 28 Oct 1992 → 30 Oct 1992 |
Abstract
This paper presents investigations to improve the quality of high power antireflective coatings for optical fibers used in material processing with Nd:YAG lasers. The coatings were produced by electron-beam deposition and ion-beam-sputtering on step-index, multimode fibers with a core diameter of 1000 μm. The reflection losses, the absorption, and the laser-induced damage thresholds of these coatings were determined. Hafnia, tantala, and silica were selected as deposition materials for the AR- coatings. For measuring the reflection losses of the coated fiber surfaces, a diode-pumped Nd:YAG laser was used. Absorption measurements were performed by photothermal displacement spectroscopy, a surface sensitive technique which makes scanning of the fiber surface possible. These data were compared to calorimetric values determined from quartz substrates which were deposited in the same coating run. The R-on-1 damage thresholds of the coated fibers were measured using a two-stage single-mode Nd:YAG laser with a pulse duration of 12 ns. A four-stage cw system with 1.2 kW output power and a pulsed Nd:YAG slab laser were used to evaluate the performance of the coated fibers.
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Condensed Matter Physics
- Computer Science(all)
- Computer Science Applications
- Mathematics(all)
- Applied Mathematics
- Engineering(all)
- Electrical and Electronic Engineering
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1993. 265-280 Paper presented at 24th Annual Boulder Damage Symposium Laser-Induced Damage in Optical Materials: 1992, Boulder, CO, USA.
Research output: Contribution to conference › Paper › Research › peer review
}
TY - CONF
T1 - Antireflective coatings on optical fibers for high-power solid state lasers
AU - Dieckmann, Manfred
AU - Willamowski, Uwe
AU - Ristau, Detlev
AU - Welling, Herbert
AU - Steiger, Bernhard
AU - Franke, John
AU - Wolf, Reinhard
PY - 1993/6/24
Y1 - 1993/6/24
N2 - This paper presents investigations to improve the quality of high power antireflective coatings for optical fibers used in material processing with Nd:YAG lasers. The coatings were produced by electron-beam deposition and ion-beam-sputtering on step-index, multimode fibers with a core diameter of 1000 μm. The reflection losses, the absorption, and the laser-induced damage thresholds of these coatings were determined. Hafnia, tantala, and silica were selected as deposition materials for the AR- coatings. For measuring the reflection losses of the coated fiber surfaces, a diode-pumped Nd:YAG laser was used. Absorption measurements were performed by photothermal displacement spectroscopy, a surface sensitive technique which makes scanning of the fiber surface possible. These data were compared to calorimetric values determined from quartz substrates which were deposited in the same coating run. The R-on-1 damage thresholds of the coated fibers were measured using a two-stage single-mode Nd:YAG laser with a pulse duration of 12 ns. A four-stage cw system with 1.2 kW output power and a pulsed Nd:YAG slab laser were used to evaluate the performance of the coated fibers.
AB - This paper presents investigations to improve the quality of high power antireflective coatings for optical fibers used in material processing with Nd:YAG lasers. The coatings were produced by electron-beam deposition and ion-beam-sputtering on step-index, multimode fibers with a core diameter of 1000 μm. The reflection losses, the absorption, and the laser-induced damage thresholds of these coatings were determined. Hafnia, tantala, and silica were selected as deposition materials for the AR- coatings. For measuring the reflection losses of the coated fiber surfaces, a diode-pumped Nd:YAG laser was used. Absorption measurements were performed by photothermal displacement spectroscopy, a surface sensitive technique which makes scanning of the fiber surface possible. These data were compared to calorimetric values determined from quartz substrates which were deposited in the same coating run. The R-on-1 damage thresholds of the coated fibers were measured using a two-stage single-mode Nd:YAG laser with a pulse duration of 12 ns. A four-stage cw system with 1.2 kW output power and a pulsed Nd:YAG slab laser were used to evaluate the performance of the coated fibers.
UR - http://www.scopus.com/inward/record.url?scp=0027846581&partnerID=8YFLogxK
U2 - 10.1117/12.147435
DO - 10.1117/12.147435
M3 - Paper
AN - SCOPUS:0027846581
SP - 265
EP - 280
T2 - 24th Annual Boulder Damage Symposium Laser-Induced Damage in Optical Materials: 1992
Y2 - 28 October 1992 through 30 October 1992
ER -