In the past few years

ceramic laser materials have emerged with many advantages

such as lower cost fabrication

high melting temperature and large size samples more easily to be manufactured

as compared to crystals and glasses.There has been remarkable interest in rare-earth-doped ferroelectric ceramics which are suitable material for novel integrated-optic devices formed by a combination of lasers/amplifier with electro-optic(EO)and nonlinear-optic waveguide components.Recently

a new highly transparent

electro-optic ceramic material

Er

3+

and Er

3+

/Yb

3+

ions doped Pb

1-x

La

x

Zr

y

Ti

1-y

O

3

(PLZT)

have been fabricated

which have exceptionally high electro-optic(EO)effect.The up-conversion luminescence of Er

3+

and Er

3+

/Yb

3+

ions doped PLZT for active electro-optical applications has been investigated.The green light of 540 nm and 566 nm can be observed in Er

3+

doped PLZT.Moreover

their intensity gets stronger along with concentration of Er

3+

.In Er

3+

/Yb

3+

co-doped PLZT

besides the green light of 540 nm and 566 nm

a relatively weak red light of 668 nm can also be observed.To all sample

the nonlinear curves fitting to the relationship between up-conversion intensity and excitation intensity were made

which were concluded that both red emission and green emission were the absorption process of double-photon.And again the character of up-conversion luminescence was discussed using the Raman spectra of PLZT.The theory and experimentation both show Er

3+

and Er

3+

/Yb

3+

ions doped PLZT

based on its large electro-optical effect

have a prospect to be applied for electro-optic Q-switched double-function up-conversion laser device.