Wavelength stability of a high-output, broadband, Er-doped superfluorescent fiber source pumped near 980 nm.
We report the dependence of the mean wavelength of Er-doped superfluorescent fiber sources on temperature, pump wavelength, and pump power. In particular, we measure an intrinsic temperature coefficient of between -2 and +8 parts in 10(6) (ppm) per degree Celsius depending on pump wavelength, pump power, and fiber length. Additionally, we report a pump wavelength dependence that is symmetrical about the peak pump absorption wavelength (near 976 nm) and a decrease in mean wavelength with pump power with a slope of between 0 and -93 ppm/mW.
P F
PF
Wysocki
M J
MJ
Digonnet
B Y
BY
Kim