Abstract
Performance of high-concentration Er 3+-Yb 3+-codoped phosphate fiber amplifiers in a copumping configuration is presented. Gain, noise figure, and output signal saturation power of fiber amplifiers with different lengths are reported. From a 3.6-cm-long fiber, 18-dB internal gain, i.e., 5 dB/cm, for small signal input at 1535 nm, was achieved. To the best of our knowledge, this is the highest gain per unit length for erbium-doped fiber amplifiers ever reported.
Original language | English (US) |
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Pages (from-to) | 657-659 |
Number of pages | 3 |
Journal | IEEE Photonics Technology Letters |
Volume | 13 |
Issue number | 7 |
DOIs | |
State | Published - Jul 2001 |
Keywords
- Erbium-ytterbium-codoped fiber amplifiers and rare-earth doped materials
- Optical fiber amplifiers
- Optical fiber measurements
- Phosphate fiber amplifiers
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering