|
Ce:BaTiO3 is a new
crystal with excellent photorefractive properties and optical quality.
The
formation of self-pumped phase conjugate(SPPC) wave in this crystal is
based on the backward stimulated photorefractive scattering in air without
any external seed beam. Therefore, the reflectivity of SPPC is highly
insensitive to the incident angle, the inclination and the pitch of
crystal. It is easy to obtain SPPC wave.
Notes:
-
Maintain the
storage temperature above 13°C(55°F) and below 120°C(248°F) to prevent the
phase transition.
-
One face polished for self-pumped phase
conjugating mirrors.
-
Two faces polished for two wave mixing.
-
Six faces polished for self-pumped phase conjugation.
|
Crystal
Structure |
Tetragonal
4mm |
|
Transparent
Range |
0.45-6.3mm |
|
Refractive
Indices |
no=2.4921,
ne=2.4247 @515nm
no=2.4160,
ne=2.3630 @633nm
no=2.3681,
ne=2.3235 @800nm |
|
Electro-Optic
Coefficients |
r13=11.7pm/v,
r33=112pm/v, r42=1920pm/v |
|
Reflectivity of
SPPC |
50-70%,
l
=515nm
50-80%, l
=633nm
>70%,
l
=670nm |
|
Two wave
mixing coupling constant |
10-40cm-1 |
|
Absorption
Loss(cm-1) |
3.392@515nm
0.268@633nm
0.005@800nm |
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