Details
| Original language | English |
|---|---|
| Title of host publication | Fiber Lasers IX |
| Subtitle of host publication | Technology, Systems, and Applications |
| Publication status | Published - 13 Feb 2012 |
| Event | Fiber Lasers IX: Technology, Systems, and Applications - San Francisco, United States Duration: 23 Jan 2012 → 26 Jan 2012 |
Publication series
| Name | Progress in Biomedical Optics and Imaging - Proceedings of SPIE |
|---|---|
| Volume | 8237 |
| ISSN (Print) | 1605-7422 |
Abstract
Gain dynamics and corresponding refractive index changes in fiber amplifiers are important for low noise fiber amplifiers and when using doped fibers as phase actuators. Furthermore self-induced refractive index changes are a possible explanation for mode fluctuations in high power fiber amplifiers, which currently present a major challenge for high power fiber lasers. Since these processes are all time dependent, a dynamic model of the refractive index change is very important. We will present measurements of phase shift dynamics in a low power ytterbium fiber amplifier. Using a simplified analytic model, which was originally developed to predict power modulation in telecom amplifiers, we were able to model the part attributed to the Kramers-Kronig-Relations and to obtain a much better understanding of the involved timescales. This will help modeling of phase noise in low noise amplifiers and possibly mode fluctuations in fiber amplifiers.
Keywords
- Fiber devices and optical amplifiers, Laser stabilization
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Materials Science(all)
- Biomaterials
- Medicine(all)
- Radiology Nuclear Medicine and imaging
Cite this
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- BibTeX
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Fiber Lasers IX: Technology, Systems, and Applications. 2012. 82371B (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 8237).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Frequency domain analysis of dynamic refractive index changes in fiber amplifiers
AU - Tünnermann, Henrik
AU - Neumann, Jörg
AU - Kracht, Dietmar
AU - Weßels, Peter
PY - 2012/2/13
Y1 - 2012/2/13
N2 - Gain dynamics and corresponding refractive index changes in fiber amplifiers are important for low noise fiber amplifiers and when using doped fibers as phase actuators. Furthermore self-induced refractive index changes are a possible explanation for mode fluctuations in high power fiber amplifiers, which currently present a major challenge for high power fiber lasers. Since these processes are all time dependent, a dynamic model of the refractive index change is very important. We will present measurements of phase shift dynamics in a low power ytterbium fiber amplifier. Using a simplified analytic model, which was originally developed to predict power modulation in telecom amplifiers, we were able to model the part attributed to the Kramers-Kronig-Relations and to obtain a much better understanding of the involved timescales. This will help modeling of phase noise in low noise amplifiers and possibly mode fluctuations in fiber amplifiers.
AB - Gain dynamics and corresponding refractive index changes in fiber amplifiers are important for low noise fiber amplifiers and when using doped fibers as phase actuators. Furthermore self-induced refractive index changes are a possible explanation for mode fluctuations in high power fiber amplifiers, which currently present a major challenge for high power fiber lasers. Since these processes are all time dependent, a dynamic model of the refractive index change is very important. We will present measurements of phase shift dynamics in a low power ytterbium fiber amplifier. Using a simplified analytic model, which was originally developed to predict power modulation in telecom amplifiers, we were able to model the part attributed to the Kramers-Kronig-Relations and to obtain a much better understanding of the involved timescales. This will help modeling of phase noise in low noise amplifiers and possibly mode fluctuations in fiber amplifiers.
KW - Fiber devices and optical amplifiers
KW - Laser stabilization
UR - http://www.scopus.com/inward/record.url?scp=84859637805&partnerID=8YFLogxK
U2 - 10.1117/12.908316
DO - 10.1117/12.908316
M3 - Conference contribution
AN - SCOPUS:84859637805
SN - 9780819488800
T3 - Progress in Biomedical Optics and Imaging - Proceedings of SPIE
BT - Fiber Lasers IX
T2 - Fiber Lasers IX: Technology, Systems, and Applications
Y2 - 23 January 2012 through 26 January 2012
ER -