Abstract
The first bismuth-doped fiber amplifier (BDFA) for 1640–1770-nm region was developed. The BDFA diode-pumped at 1550 nm is characterized by 23-dB peak gain at 1710 nm, noise figure~7 dB, Δλ1/2=40 nm and g≈0.1 dB/mW.
© 2016 Optical Society of America
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