## Abstract Gain enhancement and bandwidth broadening in a long‐wavelength band (L band) EDFA are demonstrated by incorporating an erbium‐doped fiber laser. Utilizing the strong 1550 nm lasing signal used as a secondary pump source, considerable improvements in gain and its bandwidth are achieved.
Gain-enhanced L-band EDFA employing a 1550 nm band ring laser
✍ Scribed by M. A. Mahdi; H. Ahmad
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 145 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0895-2477
- DOI
- 10.1002/mop.1155
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✦ Synopsis
Abstract
A unique method of upgrading a C‐band EDFA into a highly efficient L‐band EDFA is presented, incorporating a gain‐clamped amplifier (ring laser) that acts as a gain‐improving element in an unpumped erbium‐doped fiber. A gain improvement of 17.8 dB and noise figures <4.0 dB are measured for optimum settings. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 29: 282–284, 2001.
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