Author:
Yu C. X.,Pax P.,Cook M.,Khitrov V.,Wu S.,Moore W.,Runkel M.,Messerly M.,Dawson J.,Dubinskii M.
Abstract
We successfully fabricated a 40-μm core LMA fiber with distributed <40-nm-passband bandpass filter. The stopband is over 300 nm wide with >30 dB/m average suppression. Output M2 is 1.15 at a coil diameter of 25 cm.