Details
| Original language | English |
|---|---|
| Pages (from-to) | 3597-3599 |
| Number of pages | 3 |
| Journal | Optics letters |
| Volume | 37 |
| Issue number | 17 |
| Early online date | 24 Aug 2012 |
| Publication status | Published - 1 Sept 2012 |
Abstract
Temperature induced refractive index changes are an important aspect in today's fiber amplifiers with high average power. For many processes, their time dependence is critical. Here, we analyze the impact of radial heat diffusion on the optical phase. We modulated the pump power in a 10 W amplifier and measured the frequency response of the optical phase. We compared the result with the calculated frequency response of the temperature in the fiber core, which shows the same characteristics. Additionally, we analyzed the influence of fiber parameters on the temperature dynamics.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Optics letters, Vol. 37, No. 17, 01.09.2012, p. 3597-3599.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Frequency resolved analysis of thermally induced refractive index changes in fiber amplifiers
AU - Tünnermann, Henrik
AU - Neumann, Jörg
AU - Kracht, Dietmar
AU - Weßels, Peter
PY - 2012/9/1
Y1 - 2012/9/1
N2 - Temperature induced refractive index changes are an important aspect in today's fiber amplifiers with high average power. For many processes, their time dependence is critical. Here, we analyze the impact of radial heat diffusion on the optical phase. We modulated the pump power in a 10 W amplifier and measured the frequency response of the optical phase. We compared the result with the calculated frequency response of the temperature in the fiber core, which shows the same characteristics. Additionally, we analyzed the influence of fiber parameters on the temperature dynamics.
AB - Temperature induced refractive index changes are an important aspect in today's fiber amplifiers with high average power. For many processes, their time dependence is critical. Here, we analyze the impact of radial heat diffusion on the optical phase. We modulated the pump power in a 10 W amplifier and measured the frequency response of the optical phase. We compared the result with the calculated frequency response of the temperature in the fiber core, which shows the same characteristics. Additionally, we analyzed the influence of fiber parameters on the temperature dynamics.
UR - http://www.scopus.com/inward/record.url?scp=84865793082&partnerID=8YFLogxK
U2 - 10.1364/OL.37.003597
DO - 10.1364/OL.37.003597
M3 - Article
AN - SCOPUS:84865793082
VL - 37
SP - 3597
EP - 3599
JO - Optics letters
JF - Optics letters
SN - 0146-9592
IS - 17
ER -