Frequency-temperature compensation in Ti(3+) and Ti(4+ ) doped sapphire whispering gallery mode resonators.
A new method of compensating the frequency-temperature dependence of high-and monolithic sapphire dielectric resonators near liquid nitrogen temperature is presented. This is achieved by doping monocrystalline sapphire with Ti(3+) ions. This technique offers significant advantages over other methods.
Hartnett
J G
JG
Dept. of Phys., Western Australia Univ., Nedlands, WA.
Tobar
M E
ME
Mann
A G
AG
Ivanov
E N
EN
Krupka
J
J
Geyer
R
R