Abstract
The spectral characteristics of a new type of long-period grating (LPG) structure, step-changed LPG, are investigated theoretically and experimentally. It is shown that the spectral profile of such gratings can be tailored by adjusting the step parameters. A good agreement between simulated results and measured spectra is obtained. This type of LPG has potential applications in gain flattening of erbium-doped fiber amplifiers.
Original language | English |
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Pages (from-to) | 657-659 |
Number of pages | 3 |
Journal | IEEE Photonics Technology Letters |
Volume | 14 |
Issue number | 5 |
DOIs | |
Publication status | Published - 1 May 2002 |
Keywords
- Band-rejection filters
- Gain flattening
- Long-period gratings
- Mode coupling
- Optical fiber filters
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Atomic and Molecular Physics, and Optics
- Physics and Astronomy (miscellaneous)