Broadband superfluorescent emission of the (3)H(4) ? (3)H(6) transition in a Tm-doped multicomponent silicate fiber.
We report the observation of amplified spontaneous emission in the (3)H(4) ? (3)H(6) transition of Tm(+3) in a Ta(2)O(5)-doped multicomponent silicate fiber. The evolutions of the spectral shape, output power, and center wavelength were measured as a function of fiber length and pump power in the previously unstudied high-power range, where saturation effects dominate. An output power of 1 mW has been achieved at 1.91 microm with a bandwidth of 77 nm.
K
K
Oh
A
A
Kilian
L
L
Reinhart
Q
Q
Zhang
T F
TF
Morse
P M
PM
Weber