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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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Optical filter is usually a component with a wavelength-dependent transmittance or reflectance. It's used to selectively transmit or reject a wavelength or range of wavelengths. Filters with particularly weak wavelength dependence of the transmittance are called neutral density filters. The general applications of optical filters include fluorescence microscopy, spectroscopy, clinical chemistry, machine vision inspection, etc. Bandpass interference filters are designed to transmit a portion of the spectrum, while rejecting all other wavelengths.
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KTP (KTiOPO4) is one of the most commonly used nonlinear optical materials. For example, it’s regularly used for frequency doubling of Nd:YAG lasers and other Nd-doped lasers, particularly at low or medium-power density. KTP is also widely used as OPO, EOM, optical wave-guide material, and in directional couplers.KTP exhibits a high optical quality, broad transparency range, wide acceptance angle, small walk-off angle, and type I and II non-critical phase-matching (NCPM) in a wide wavelength range.
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Items Specifications Material CTH:YAG (Cr, Tm, Ho - doped YAG)Doping ExtentCr: 0.3~1.2 at%; Tm: 5~6 at%; Ho: 0.3~0.4 at% Crystalline Direction[111] (± 5°)DimensionsDia 3~6 (+0/-0.05) mm × 50~120 (±0.5) mm (customized)Extinction Ratio> 25 dBSingle Pass WFD < λ/8 @633 nm over central areaSurface Quality 10-5 [s-d] per MIL-O-13830BClear Aperture> 90% over central areaEnd-surface Parallelism< 20"Perpendicularity< 5'End-surface Flatness< λ/8 @633 nmChamfer0.2 ± 0.05 mm × 45°Laser CoatingAR/AR @ 209
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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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Beta-BBO crystal is an important nonlinear optical crystal
with combination of unique optical properties, such as broad transmission and
phase matching ranges, large nonlinear coefficient, high damage
threshold and excellent optical homogeneity. The β-BBO crystal is an efficient material for the second, third and fourth
harmonic generation of Nd:YAG lasers, and the best NLO material for the
fifth harmonic generation at 213 nm.
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High temperature phase of α-BBO Crystal (BaB2O4)
is one of the excellent birefringent crystals. It is characterized by
large birefringent coefficient and wide transmission window ranged from
189nm to 3500nm. Due to its high chemical stability and medium hardness,
α-BBO is fabricated easily into many kinds of optical components.The
physical, chemical, thermal and optical properties of α-BBO are similar
to those of β-BBO.
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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. Low
piezoelectric ringing makes this Pockels cell attractive for the control
of high-power and high-pulse repetition rate (hundreds of kilohertz, up to 1MHz) lasers.
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Barium Borate exists in three major crystalline forms: alpha, beta, and
gamma. The low-temperature beta phase converts into the alpha phase upon
heating to 925 °C. β-BBO differs from α-BBO by the
positions of the barium ions within the crystal. Both phases are
birefringent, however α-BBO has centric symmetry and thus
does not has the same nonlinear properties as β-BBO.α-BBO is a negative uniaxial crystal with a large birefringence over the broad transparent range from 189 nm to 3500 nm.
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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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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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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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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 (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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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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Optical Lenses are designed to
focus or diverge light and for imaging or alignment in an optical
system. Optical Lenses, which may consist of a single or multiple
elements, have a variety of applications. Lens forms can be divided into
simple lenses (which include plano-convex lens, plano-concave lens,
double-convex lens, double-concave lens, cylinder lens, drum
lens, spherical lens in different shapes), achromatic lenses compound
lens and multiple types.
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Wisoptic’s optical mirrors are available for use with light in the UV,
VIS, and IR spectral regions. Optical mirrors with a metallic coating
have high reflectivity over the widest spectral region, whereas mirrors
with a broadband dielectric coating have a narrower spectral range of
operation; the average reflectivity throughout the specified region is
greater than 99%.
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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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The most notable benefit of aspheric lenses is their ability to correct for spherical aberration,
an optical effect which causes incident light rays to focus at
different points when forming an image, creating a blur. Spherical
aberration is commonly seen in spherical lenses, such as plano-convex or
double-convex lens shapes, but aspheric lenses focus light to a small
point, creating comparatively no blur and improving image quality.
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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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A corner cube (or cube corner), also known as a retroreflector, is an optical
component with the unique ability to return an incoming beam of light
directly towards its point of origin regardless of the beam's angle of
entry. This property makes this prism type ideal for a wide variety of
applications, such as laser resonator cavities, land surveying, ground
based range-finding, satellite communications and space vehicle docking.Wisoptic offer a wide variety of retroreflectors at competitive prices and lead times, and are able to accommodate the most demanding requirements.
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Optical beamsplitters play a vital role in many laser-based
measurement and positioning systems. Although the operation of a typical
beamsplitter is conceptually simple, its performance characteristics
can dramatically affect the accuracy and repeatability of the overall
system. Consequently, understanding the variables that distinguish
beamsplitter performance is an important step in comparing and
specifying components.
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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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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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