Abstract
Recently, 978-nm diode pumping of an erbium doped fiber amplifier has produced the highest gain coefficient of 3.9 dB/mW.1 However, pumping with 1.48-μm laser diodes2 is also important because of the more mature technology for fabricating high power InGaAsP laser diodes. High optical gain is generally desirable, but a low noise figure is also important for use as a preamplifier. To optimize the amplifier performance and compare with 978-nm pumping, we measured the gain and noise characteristics of an erbium doped fiber amplifier for pump wavelengths between 1460 and 1510 nm.
© 1990 Optical Society of America
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