Determination of optimal pumping configuration for an L‐band EDFA with 980‐nm LD and ASE pumps

Abstract

L‐band gain improvement through amplified spontaneous emission (ASE) pumping was conducted. For an L‐band amplifier system employing ASE to improve gain, pumping the system counterdirectionally with ASE and codirectionally with 980 nm would yield the best overall performance in terms of gain. Gain improvement as high as 6 dB was attained. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 39: 363–366, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.11217