Spectral engineering of slow light, cavity line narrowing, and pulse compression.
More than 4 orders of magnitude of cavity-linewidth narrowing in a rare-earth-ion-doped crystal cavity, emanating from strong intracavity dispersion caused by off-resonant interaction with dopant ions, is demonstrated. The dispersion profiles are engineered using optical pumping techniques creating significant semipermanent but reprogrammable changes of the rare-earth absorption profiles. Several cavity modes are shown within the spectral transmission window. Several possible applications of this phenomenon are discussed.
Department of Physics, Lund University, Post Office Box 118, SE-22100 Lund, Sweden.
Mahmood
M
Sabooni
Qian
Q
Li
Lars
L
Rippe
R Krishna
RK
Mohan
Stefan
S
Kröll