RTP (rubidium titanyl phosphate
- RbTiOPO4), is a very desirable crystal material for
electro-optic modulators and Q-switches. It combinesseveral
features of KD*P and Lithium Niobate andhas one major
advantage over both: RTP exhibits virtually no piezo-electric
effect with electrical signals between DC and 100 kHz.
There is no ringing superimposed on the transmitted
optical beam passing through the crystal. Modulators
and Q-switches made with RTP can be utilized with high
power lasers operating at high repetition rates.
Freedom from piezoelectric ringing enables the use of
RTP devices in high repetition rate mode locked laser
pulse extraction, laser pulse slicing, chopping and
gating systems as well as in Q-switching applications.
Tests conducted at up to 100 kHz reveal no ringing in
the optical waveform.
RTP has a useful optical wavelength range from 350 nm
to 4300 nm. Transmittance, in the 400 to 1100 nm range,
with hard, “V” type high efficiency Anti-Reflection
coatings is 98.5%. Standard AR wavelengths, at the present
time, are 1064 nm and 700-900 nm. A-R coatings for other
wavelengths are available.
No Piezoelectric Ringing
High Damage Threshold
High Extinction Ratio
Low Insertion Loss