Gain Dynamics of Few-Mode Erbium-Doped Fiber Amplifier
- Resource Type
- Periodical
- Authors
- Ono, H.; Yamada, M.
- Source
- IEEE Photonics Technology Letters IEEE Photon. Technol. Lett. Photonics Technology Letters, IEEE. 36(7):500-503 Apr, 2024
- Subject
- Engineered Materials, Dielectrics and Plasmas
Photonics and Electrooptics
Mathematical models
Behavioral sciences
Ions
Erbium-doped fiber amplifiers
Erbium
Transient analysis
Perturbation methods
Few-mode
erbium-doped fiber amplifier
gain control
- Language
- ISSN
- 1041-1135
1941-0174
A model describing the dynamic behavior of a few-mode erbium-doped fiber amplifier (FM-EDFA) is derived using the average inversion level. In that model, when the amplification overlap factor and equivalent area are independent of time, the dynamic behavior of an FM-EDFA is described by a differential equation of the average inversion level. This condition is satisfied for an FM-EDFA with a ring-core erbium-doped fiber (EDF). The derived model is validated in simulations and experiments of transient and frequency responses of a 2-LP mode EDFA with a ring-core EDF.