Linewidth-narrowing mechanism in lasers by nonlinear wave mixing.
We propose a linewidth-narrowing mechanism in lasers by nonlinear absorptive wave mixing of the counterpropagating beams in the cavity. We give a theoretical analysis and report on a demonstration of the effect with an erbium-doped fiber laser. The system also exhibits bistability in the dependence of the oscillation intensity versus pump power.
Horowitz
M
M
Daisy
R
R
Fischer
B
B
Zyskind
J L
JL