Abstract
Signal quality enhancement and interferometric noise suppression have been demonstrated by nonlinear filtering in a dispersion imbalanced loop mirror. The nonlinear filter improves the signal extinction ratio by more then 10 dB and simultaneously increases the acceptable noise level by 15 dB. The improvement is constant throughout a wide wavelength range of 28 nm within the C-band erbium-doped fiber amplifier region.
| Original language | English |
|---|---|
| Pages (from-to) | 417-419 |
| Number of pages | 3 |
| Journal | IEEE Photonics Technology Letters |
| Volume | 14 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 1 Mar 2002 |
Funding
Manuscript received October 10, 2001; revised November 16, 2001. This work was supported in part by the Engineering and bPhysical Sciences Research Council (EPSRC), U.K., and in part by Nortel Networks under the CASE award. Y. J. Chai, R. V. Penty, and I. H. White are with the Centre for Photonic Communication Systems, Department of Engineering, University of Cambridge, CB2 3DS Cambridge, U.K. I. Y. Khrushchev is with the Department of Electronic Engineering, Aston University, Aston Triangle, B4 7ET Birmingham, U.K. Publisher Item Identifier S 1041-1135(02)01204-1.
Keywords
- Nonlinear fiber optics
- Optical communication
- Optical fiber devices
- Ultrafast optics
- Wavelength-division multiplexing
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Atomic and Molecular Physics, and Optics
- Physics and Astronomy (miscellaneous)