RTP (Rubidium Titanyl Phosphate - RbTiOPO4) is a robust crystal material suitable for a wide range of E-O applications. It
has advantages of higher damage threshold (about 1.8 times that of
KTP), high resistivity, high repetition rate, no hygroscopic or
piezoelectric effect.
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RTP crystal is widely used for Electro-Optic applications whenever low
switching voltages are required. e.g. in laser Q-switching system with high frequency repetition, high power and narrow pulse width. RTP E-O devices are not only used in laser micromachining and laser ranging, but also in major scientific exploration projects due to their excellent comprehensive performance.As RTP is transparent from 400nm to 3.5µm, it can be used in multiple
types of laser such as Er:YAG laser at 2.94µm with fairly good
efficiency.
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RTP (Rubidium Titanyl Phosphate - RbTiOPO4) is a very desirable crystal material for E-O modulators and Q-switches. It has advantages of higher damage threshold (about 1.8 times that of KTP), high resistivity, high repetition rate, no hygroscopic or piezoelectric effect. As biaxial crystals, RTP’s natural birefringence needs to be compensated by use of two crystal rods specially oriented so that beam passes along the X-direction or Y-direction.
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RTP (RbTiOPO4) is an isomorph of KTP crystal. RTP single crystals are grown in WISOPTIC by a slow-cooling flux method. RTP has many advantages e.g. large nonlinear optical coefficient, large E-O coefficient, high damage threshold (about 1.8 times of KTP), high resistivity, high repetition rate, no hygroscopy and no induced piezo-electric effect with electrical signals up to 60 kHz.
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RTP (RbTiOPO4) is an isomorph of KTP crystal. RTP has many advantages e.g. large nonlinear optical coefficient, large E-O coefficient, high damage threshold (about 1.8 times of KTP), high resistivity, high repetition rate, no hygroscopy and no induced piezo-electric effect with electrical signals up to 60 kHz. The transmission range of RTP is 350 nm to 4500 nm.RTP crystal is widely used in laser Q-switching system with high frequency repetition, high power and narrow pulse width.
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RTP Pockels cell has a number of benefits compared to other electro-optic materials:Non hygroscopicLow switching voltageGood extinction ratioNo piezo and pyro-electric effectsUsed either as RTP Q-switch or RTP pulsepicker WISOPTIC has developed precise alignment techniques that enable
us to offer our customers complete, plug-and-play RTP Pockels cell
assemblies with a superior level of performance.Crystal Size4x4x10 mm6x6x10 mm8x8x10 mmQuantity of Crystals222Static Half-wave Voltage @ 1064 nmX-cut: 1700 VY-cut: 1400 VX-cut: 2500 VY-cut: 2100 VX-cut: 3300 VY-cut: 2750 VE
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RTP possesses a large electro-optic impact for light propagating along either the x or y direction (electric powered along z). It functions right optical transparency from around 400nm to over 4µm. RTP offers a high resistance to optical damage with energy ~1Gw/cm2 for 1ns pulses at 1064nm. It is largely total lack of piezo-electric resonances at 200kHz and probable beyond. The primary distinction between RTP and BBO whilst used for Q-switching pertains to the common power degree at which the Q-switch is capable of be used practically.
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Potassium
Dihydrogen Phosphate (KDP) and Potassium Dideuterium Phosphate (DKDP)
are among the most widely-used commercial NLO materials, characterized
by good UV transmission, high damage threshold, and high birefringence,
though their NLO coefficients are relatively low. They are usually used
for doubling, tripling or quadrupling of a Nd:YAG laser (at constant
temperature).
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Potassium Dihydrogen Phosphate (KDP) and Potassium Dideuterium Phosphate (KD*P, DKDP) crystals are among the most widley used nonlinear crystals. Both of these crystals are routinely used for the doubling, triplingand quadrupling of Nd:YAG lasers at room temperatures.
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Characterized by the excelent UV transmission, high damage threshold,
and high birefringence, KDP (Potassium Dihydrogen Phosphate) and KD*P
(Potassium Dideuterium Phosphate) are useful commercial NLO materials
for doubling, tripling and quadrupling of Nd:YAG laser at room
temperature or an elevated temperature. They are also excellent
electro-optic (EO) crystals with high electro-optic coefficients, widely
used as electro-optical modulators and Pockels cells for Q-switched
lasers.
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Potassium dihydrogen phosphate KH2PO4 (KDP) is a
transparent dielectric material best known for its nonlinear optical and
electro-optical properties. Because of its nonlinear
optical properties, it has been incorporated into various laser systems
for harmonic generation and optoelectrical switching.
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Characterized by the excelent UV transmission, high damage threshold,
and high birefringence, KDP (Potassium Dihydrogen Phosphate) are commonly used commercial NLO materials
for doubling, tripling and quadrupling of Nd:YAG laser at room
temperature or an elevated temperature. KDP are also excellent
electro-optic (EO) crystals with high EO coefficients, thus popularly
used as EO modulators and Pockels cells for Q-switched
lasers.
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Potassium dideuterium phosphate DKDP (KD * P) crystal has low optical loss, high extinction ratio, and excellent electro-optical performance. DKDP Pockels cells are made by using the longitudinal effect of DKDP crystals. The modulation effect is stable and the pulse width is small.
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E-O Q-switch based on DKDP (KD*P) crystals are one of the most popular Pockels cells in the market.Deuterated potassium dihydrogen phosphate has good transmission from
390 nm to 1400 nm (0.39 μm – 1.4 μm) and combined with high
electro-optical coefficients makes it suitable for Pockels cells.Highly deuterated DKDP
(D>99% – WISOPTIC) is necessary to reach effective electro-optical
response.
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KTP Pockels are based on hydrothermal-grown high resistivity KTP crystals overcomes the common
electrochromism damage of flux-grown KTP. Hydrothermal-grown KTP crystals have better optical homogeneity and higher damage threshold
comparing to RTP crystals. This KTP crystal has large effective electro-optic coefficients and lower
half-wave voltage. The Q-switch is built utilizing thermally compensated
double crystal designs.
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BBO(Beta-Barium Borate, β-BaB2O4)based Pockels cells operate from approximately 0.2 - 1.65 µm and are not subject to tracking degradation. BBO exhibits low piezoelectric response, good thermal stability, and low absorption. Due to the low piezoelectric coupling coefficients of BBO, BBO Pockels cells function at repetition rates of hundreds of kilohertz.
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WISOPTIC provides sorts of quadric Aspheric Lens and high order Aspheric Lens, as well as infrared Aspheric Lens (ZnS, ZnSe, Ge, etc. ).WISOPTIC Capabilities - Aspheric Lens Medium PrecisionHigh PrecisionAperture5~200 mm20~1000 mmSurface Quality [S/D]< 40/20 [S/D]< 40/20 [S/D]Surface IrregularityPV< 0.5~5 µm RMS< λ/50 @ 632.8 nmAspheric Surface Type Quadric, High order Quadric, High order Manufacture Capability300 pcs/month20 pcs/year
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Right angle prisms
are generally used to bend image paths or redirect light at 90°. This
produces a left handed image and depending on the orientation of the
prism, the image may be inverted or reverted.
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Corner cube prisms are optics which act as corner reflectors.
The basic operation principle is that there are internal reflections on
three mutually orthogonal prism surfaces, producing a direction of a
reflected beam which is nominally parallel to the direction of the
incident beam – with the accuracy limited only by the accuracy of the
surface orientation of the prism.
Precision prisms can offer excellent parallelism of incoming and
reflecting beams.
It is usually specified as an angular deviation, e.g.
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Polarizer is a kind of optical filter
where the light transmission depends strongly on the polarization
state.
Normally, light with linear polarization in a certain direction is
passed, and light polarized in an orthogonal direction is either
absorbed or propagated to a different direction.For other directions of linear polarization with an angle θ against the“passing”direction, the transmission exhibits a cos2 θ
dependence.
That can be understood by considering that linear polarization state as a
linear superposition of the "passing”and the“blocked”state.Most polarizers act
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Thin Film Polarizers are made from composed materials which include a polarizing film, an inner protective film, a pressure-sensitive adhesive layer, and an outer protective film. Polarizer is used to change un-polarized beam into linear polarized beam.
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Thin Film Polarizers are made from composed materials which include a polarizing film, an inner protective film, a pressure-sensitive adhesive layer, and an outer protective film. Polarizer is used to change un-polarized beam into linear polarized beam.
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HGTR (high anti-grey track) KTP crystal developed by hydrothermal method overcomes the common phenomenon of electrochromism of the flux-grown KTP, thus has many advantages such as high electrical resistivity, low insertion loss, low half-wave voltage, high laser damage threshold, and wide transmission band.KTP Pockels cells made by HGTR-KTP crystal are mainly used in pulse lasers with narrow pulse width and high repetition frequency.
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The high
damage threshold makes BBO cells more attractive than others in the high
power systems. Like LiNbO3 Pockels cells, BBO Pockels cells work in
transverse mode, which makes the cells very compact, and the half-wave
voltage designable. BBO Pockels cells are also suitable for systems with
high repetition rates.WISOPTIC has been granted of several patents for its technology of BBO Pockels cells. WISOPTIC’s mass products of BBO Pockels cell are gaining worldwide customers’ interest and trust for its high cost performance.
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