Details
| Original language | English |
|---|---|
| Pages (from-to) | 13539-13550 |
| Number of pages | 12 |
| Journal | Optics express |
| Volume | 20 |
| Issue number | 12 |
| Early online date | 1 Jun 2012 |
| Publication status | Published - 4 Jun 2012 |
Abstract
Gain dynamics and refractive index changes in fiber amplifiers are important in many areas. For example, the knowledge of the frequency responses for seed and pump power modulation are required to actively stabilize low noise fiber amplifiers. Slow and fast light via coherent population oscillations rely on the change of group index to delay or advance pulses, and refractive index changes in fiber amplifiers are a possible explanation for mode fluctuations in high power fiber amplifiers. Here, we analyze the frequency dependent influence of seed and pump power modulation on the fiber amplifier output power and the refractive index. We explain the observed power and refractive index modulation with an analytic model originally developed for telecom amplifiers and discuss a further simplification of the model.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
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In: Optics express, Vol. 20, No. 12, 04.06.2012, p. 13539-13550.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Gain dynamics and refractive index changes in fiber amplifiers
T2 - A frequency domain approach
AU - Tünnermann, Henrik
AU - Neumann, Jörg
AU - Kracht, Dietmar
AU - Weßels, Peter
PY - 2012/6/4
Y1 - 2012/6/4
N2 - Gain dynamics and refractive index changes in fiber amplifiers are important in many areas. For example, the knowledge of the frequency responses for seed and pump power modulation are required to actively stabilize low noise fiber amplifiers. Slow and fast light via coherent population oscillations rely on the change of group index to delay or advance pulses, and refractive index changes in fiber amplifiers are a possible explanation for mode fluctuations in high power fiber amplifiers. Here, we analyze the frequency dependent influence of seed and pump power modulation on the fiber amplifier output power and the refractive index. We explain the observed power and refractive index modulation with an analytic model originally developed for telecom amplifiers and discuss a further simplification of the model.
AB - Gain dynamics and refractive index changes in fiber amplifiers are important in many areas. For example, the knowledge of the frequency responses for seed and pump power modulation are required to actively stabilize low noise fiber amplifiers. Slow and fast light via coherent population oscillations rely on the change of group index to delay or advance pulses, and refractive index changes in fiber amplifiers are a possible explanation for mode fluctuations in high power fiber amplifiers. Here, we analyze the frequency dependent influence of seed and pump power modulation on the fiber amplifier output power and the refractive index. We explain the observed power and refractive index modulation with an analytic model originally developed for telecom amplifiers and discuss a further simplification of the model.
UR - http://www.scopus.com/inward/record.url?scp=84863740187&partnerID=8YFLogxK
U2 - 10.1364/OE.20.013539
DO - 10.1364/OE.20.013539
M3 - Article
AN - SCOPUS:84863740187
VL - 20
SP - 13539
EP - 13550
JO - Optics express
JF - Optics express
SN - 1094-4087
IS - 12
ER -