Dye Laser Handpiece are devices that screw onto the end of the laser's arm and convert the energy that the laser produces into different, new wavelengths of light.The two most common dye handpiece wavelengths are 585 nm and 650 nm,
which attach to Q-switched Nd:YAG lasers. For these wavelengths to be
produced, the Nd:YAG's 1064 nm wavelength is frequency-doubled to
produce the 532 nm wavelength, which is then converted by the dye
handpieces to produce either 585 nm or 650 nm. WISOPTIC use in-house made dye laser cells to make dye laser handpieces.
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Dye laser headpiece made from WISOPTIC has very high conversion efficiency: 65%~75% for 532/585nm, 45%~55% for 532/650nm.
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WISOPTIC use in-house made dye laser cells to make dye laser handpieces. Pure input beam at 532nm is required to produce output beams of 585nm/595nm (energy over 100 mJ) and 650nm/660nm (energy over 80 mJ).
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Solid Laser DyesThere is some work on dye lasers based on solid media, e.g.
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Polymer-matrix Gain Medium for Pulsed Dye Laser (PDL)Polymer matrix can be used to make solid laser gain medium of dye lasers. Compared with the commonly used liquid-state dye laser unit, the solid-state material has many advantages, such as the convenience of handling, the various options of dimensions and shapes.
But the dye molecules in the polymer matrix might degradate in a limited time
by triplet excitation, or even destruct permanently. To avoid this shortage, WISOPTIC provides long quality guarantee period of every piece of Dye Laser Cell/Rod made in-house.
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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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Thin film polarizers are based on interference within a dielectric optical thin-film
coating on a thin glass substrate. They are made from composed materials which include a polarizing film, an inner protective film, a pressure-sensitive adhesive layer, and an outer protective film. Thin film polarizers are used for polarization separation, that's to say
to change un-polarized beam into linear polarized beam.
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Nd:YAG (Neodymium Doped Yttrium Aluminum Garnet, Nd:Y3Al5O12) has been and continues to be the most mature and most widely used crystals for lasers, no matter solid state or lamp pumped, CW or pulsed. It possesses a combination of properties uniquely favorable for laser operations. Nd:YAG
crystals are used in all types of solid-state lasers
systems-frequency-doubled continuous wave, high-energy Q-switched, and
so on.
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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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One of the most important drawbacks of popular LiNbO3 crystal is its
susceptibility to photorefractive damage (optically induced change of
refractive index, usually under exposure with blue or green CW light).
The usual way to eliminate this effect is to keep LN crystals at
elevated temperatures (400K or more). Another way to prevent
photorefractive damage is MgO-doping (usually at levels of around 5 mol%
for congruent LN).
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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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Bandpass Filters are used in a variety of industries, including machine
vision,factory automation, security and surveillance, license plate
recognition, medical and life science, agricultural inspection, aerial
imaging, motion analysis, photography and cinematography.WISOPTIC's bandpass filters include mass collection of dielectric-coated
filters, colored glass filters, neutral density filters, spatial
filters, and tunable optical filter based on liquid crystal
technology. Specifically speaking, e.g.
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Front surface mirrors are coated with aluminum or dielectrics for
maximum reflection. WISOPTIC provides both kinds of front surface
mirrors: metal coated mirror and dielectric coated mirror.Dielectric mirror is an optical mirror made of thin layers of dielectric coating layers deposited on an optical substrate (UVFS or BK7). Dielectric laser mirrors are used for laser lines, for narrowband or broadband wavelength ranges covering spectrum from UV to IR. Metallic
mirrors are coated with protected gold, silver, or aluminum.
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A right angle prism is an optical prism designed to deviate light by 90° or 180°, depending on the orientation of the prism and the face through which light enters. The joining edges and faces are perpendicular to the base faces, and all joining faces are rectangular. They are often preferable to plane mirrors, because they are easier to mount and align.
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Cr: YAG is an excellent crystal for passive Q-switching diode pumped or lamp-pumped Nd:YAG, Nd:YLF, Nd:YVO4 and other Nd or Yb doped lasers at wavelength from 800 nm to 1200 nm. With advantages of chemical stability, durable, UV resistant, good thermal conductivity and high damage threshold (>500 MW/cm2 ) and being easy to be operated, Cr:YAG is used widely to substitute for many traditional materials such as LiF, organic Dye and color centers.
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Compared to more commonly used KTP crystal, KTA
crystal has larger non-linear optical and electro-optical
coefficients. KTA has the added benefit of
significantly reduced absorption in the 2 to 5 μm region. It has found
more and more applications in second harmonic generation (SHG), sum and
difference frequency generation (SFG)/(DFG), optical parametric
oscillation/ amplification (OPO/OPA), and electro-optical Q-switching. WISOPTIC do in-house growing and processing KTA crystal with high optical quality and various options of dimensional and coating specifications.
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There are four main types of prisms based on the function: dispersion
prism, deflection or reflection prism, rotating prism and offset prism.
Deflection, offset and rotating prisms are commonly used in imaging
applications; diffusion prisms are designed for dispersive light sources
and are not suitable for any application that requires high quality
images.WISOPTIC offers a wide range of optical prisms with various designs, substrates, or coatings.
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LN crystals are nonhygroscopic and have low absorption coefficient and insert loss. In addition, LN crystal can operate stably in a wide temperature range, which makes them the main EO crystal applied in military laser systems.LN electro-optic Q-switches are widely
used in Er:YAG, Ho:YAG, Tm:YAG lasers, and are suitable for low-power
Q-switched output, especially in laser ranging. LN Pockels cells can be very compact, and the half-wave voltage can be very low. By doping MgO in LiNbO3, the damage threshold of LN Pockels cells can been increased dramatically.
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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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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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Readily available stock of periodically poled LN (PPLN) crystals can be provided
on short lead time, with various specifications of sizes and periods.PPLN SHG crystals are available for pump
laser wavelengths 976-2100 nm, generating light 488-1050nm.PPLN OPO crsytals are available for pump sources 515-1064 nm, generating visible
and IR CW beams.PPLN DFG crystals are available for various combinations of pump sources, generating wavelengths 2-5.5 um.PPLN SFG crystals are available for various combinations of pump
sources, generating wavelengths 500-700 nm.
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When classified by coatings, Optical Mirrors consist of dielectric mirrors and metallic mirrors. Dielectric mirror is an optical mirror made of thin layers of dielectric coating layers deposited on an optical substrate (UVFS or BK7). WISOPTIC offer dielectric laser mirrors for laser lines, for narrowband or broadband wavelength ranges covering spectrum from UV to IR. Metallic mirrors are coated with protected gold, silver, or aluminum. Metallic mirrors are widely used due to a moderate level of reflection over a very broad spectral range.
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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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Polarizing Beamsplitters (PBS) are
designed to split light by polarization state rather than
by wavelength or intensity. PBS are often used in
semiconductor or photonics instrumentation to transmit p-polarized light
while reflecting s-polarized light. Optical isolators use PBS to eliminate feedback-induced damage. PBS are typically designed for 0° or 45° angle of incidence
with a 90° separation of the beams, depending on the configuration.WISOPTIC offers a wide variety of PBS in a
range of configurations including plate, cube, or lateral displacement.
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