Efficient self-pumped phase conjugation at near-infrared wavelengths using cobalt-doped BaTiO(3).
Using BaTiO(3) crystals doped with cobalt, we have measured the reflectivity of self-pumped phase-conjugate mirrors operating in the total-internal-reflection geometry as a function of wavelength in the range between 633 and 933 nm. We find that for cobalt concentrations above 25 parts in 10(6), the reflectivity is higher than 50% for all the investigated wavelengths. At a wavelength of 800 nm the reflectivity is independent of incident power over a range of 12 to 600 mW.
Rytz
D
D
Stephens
R R
RR
Wechsler
B A
BA
Keirstead
M S
MS
Baer
T M
TM