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Ytterbium Doped Yttrium Aluminum Garnet (Yb:YAG) is more suitable for diode-pumping than the traditional Nd-doped laser crystal. Compared with the commonly used Nd:YAG, Yb:YAG has the following advantages: three to four times lower thermal loading per unit pump power and much larger absorption bandwidth to reduce thermal management requirements for diode lasers, longer upper-laser level lifetime.

Ytterbium Doped Yttrium Aluminum Garnet (Yb:YAG) is more suitable for diode-pumping than the traditional Nd-doped laser crystal. Compared with the commonly used Nd:YAG, Yb:YAG has the following advantages: three to four times lower thermal loading per unit pump power and much larger absorption bandwidth to reduce thermal management requirements for diode lasers, longer upper-laser level lifetime.

WISOPTIC offers both plate and cube PBS for a variety of wavelength ranges and power handling requirements.

YLF is birefringent, which eliminates thermally induced depolarization loss. The gain and the emission wavelength of Nd:YLF are polarization dependent: there is the stronger 1047nm ray for π polarization, and a weaker one at 1053nm for σ polarization. Nd:YLF provides alternative to the more common Nd:YAG laser crystal for near IR operation.

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.

Yb:YAG's advantage is a wide pump band and an excellent emission cross section. It is ideal for diode pumping. The broad absorption band enables Yb:YAG to maintain uninterrupted pump efficiency across the typical thermal shift of diode output. High efficiency means a relatively small dimension Yb:YAG laser crystal will produce high power output. Based on the YAG host crystal, Yb:YAG can be quickly integrated into the laser design process.

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.

Nominally pure stoichiometric LiNbO3 shows lower photorefractive damage resistance than congruent crystal; however, stoichiometric crystals doped with MgO of more than 1.8 mol.

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

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).

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.

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.

HGTR (High Grey Track Resistance) 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.

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.

KTP Crystal Features• Large Nonlinear Optical (NLO) Coefficients• Wide Phase-matching Acceptance Angle• Broad Temperature and Spectral Bandwidth• High Electro-Optic (E-O) Coefficients • Nonhygroscopic, Good Chemical and Mechanical Properties • Relatively High Damage Threshold for E-O modulatorKTP Crystal Applications1. SHG of Nd:Laser - KTP is the most commonly used material for frequency doubling of Nd:YAG and other Nd-doped lasers, particularly when the power density is at a low or medium level.

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.

The improved hydrothermal-grown KTP crystal overcomes the common electrochromism damage of flux-grown KTP. The hydrothermal-grown KTP (HGTR-KTP, or GTR-KTP) has high damage threshold, large effective electro-optic coefficients and lower half-wave voltage.  KTP EO Q-switches made by HGTR-KTP crystals utilize thermally compensated double crystal designs. They are mainly used in pulse lasers with narrow pulse width and high repetition frequency.

Cr:YAG (Chromium doped Ytterium Aluminum Garnet, Cr:Y3Al5O12)  crystal is an excellent material for passive Q-switching of Nd:YAG and  other Nd or Yb doped lasers in the wavelength range of 0.8 to 1.2 μm. One of the remarkable features of Cr:YAG is its high damage threshold (500-1000 MW/cm2). Its absorption band extends from 800 nm to 1200 nm and peaks at around 1060nm with a very large absorption cross section.

Solid Laser DyesThere is some work on dye lasers based on solid media, e.g.

Readily available stock of periodically poled MgO:LN crystals can be provided on short timescales to rapidly meet your application needs, providing the capability to efficiently generate laser light in a wide range of wavelengths.MgO:PPLN SHG crystals are available for a wide range of common pump laser wavelengths from 976 nm to 2100 nm, allowing generation of light between 488nm and 1050nm.MgO:PPLN OPO are available for 515nm and 1064nm pump sources, allowing continuous wavelength generation in a selection of ranges in the visible and IR.MgO: PPLN DFG Crystals are available for

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.

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.

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).

Ceramic Laser Reflector (Ceramic Laser Cavity) works particularly well in Ruby, Nd:YAG, or Alexendrite laser pumping chambers and can be a highly cost effective alternative to metal coated reflectors. Compared to metal reflectors, ceramic units offer higher reflectivity and therefore enhanced laser power. Surfaces can be sealed and coated with a solarization-resistant glaze to give high bulk reflectivity.