## Abstract A novel reflection L‐band erbium‐doped fiber amplifier, based on a fiber loop mirror, is constructed. This amplifier reflects the backward ASE to the EDF as a secondary pumping source. A gain of 30 dB (an increase of 6 dB) is obtained, compared to the forward‐end‐pumped EDFA in the rang
L-band erbium doped fiber amplifier based on a large mode area fiber
✍ Scribed by Peter D. Dragic
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 161 KB
- Volume
- 51
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
We present a single‐pass L‐band erbium doped fiber amplifier (EDFA) based on a large mode area (LMA) fiber. A single transverse mode is maintained through restricted mode launch. Pump light near 974 nm is sent into the core and has high spatial overlap with the signal beam, helping to preserve single mode propagation. Up to +27 dB of pump power limited small signal gain (30 μW signal input) with a noise figure (NF) near 4.4 is achieved in a relatively short fiber[b]. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 173–175, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23966
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