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Long wavelength band erbium-doped fiber amplifier with a reflective type first-stage amplifier
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- Authors
- Joon Tae Ahn, Kyong Hon Kim
- Issue Date
- 2002-11
- Citation
- Optics Communications, v.212, no.4-6, pp.275-278
- ISSN
- 0030-4018
- Publisher
- Elsevier
- Language
- English
- Type
- Journal Article
- Project Code
- 02MB4100, 128 WDM Channel Selector, Kyong Hon Kim
- Abstract
- We propose and demonstrate a long wavelength band (L-band) erbium-doped fiber amplifier configuration for enhanced amplifier performance. A reflective type first-stage amplifier is accommodated in the configuration to obtain strongly amplified spontaneous emission and to use it as a pump for the second-stage amplifier. 36.5 mW of ASE power, for example, could be obtained from the reflective type amplifier, which was 5.3 mW stronger than that from a single pass type amplifier under the same experimental condition. From 3.5 to 1 dB of small signal gain improvement in wavelength range of 1570-1600 nm and 2.5 dB improvement in saturated output power for 3 dB gain compression could be achieved at 112 mW of pump power. © 2002 Elsevier Science B.V. All rights reserved.
- KSP Keywords
- First stage, L-band, Pump power, Saturated output power, Second-stage, Single-pass, Small signal gain, amplified spontaneous emission, erbium-doped fiber amplifier(EDFA), gain compression, gain improvement