Abstract
The design of an erbium-doped fiber amplifier (EDFA) gain-flattening fiber filter, based on a cascade of phase-shifted long-period grating (LPG), and normal LPG, was presented. The phase-shifted LPG were written by using two kinds of techniques such that the amplitude mask technique and UV post-exposure technique. The results showed that the 3-dB bandwidth of the flattened EDFA was increased to 46 nm from 18 nm for an unequalized spectrum and the gain ripple over that bandwidth was reduced to 0.9 dB.
Original language | English |
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Pages (from-to) | 153-157 |
Number of pages | 5 |
Journal | Microwave and Optical Technology Letters |
Volume | 37 |
Issue number | 2 |
DOIs | |
Publication status | Published - 20 Apr 2003 |
Externally published | Yes |
Keywords
- EDFA
- Fiber Bragg grating
- Gain-flattening
- Long-period grating
- Phase-shift
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Atomic and Molecular Physics, and Optics