HG Optronics, Inc. has promoted these products / services:

HG Optronics, Inc. - LBO Nonlinear Optical crystal

HGO grows LBO Nonlinear crystals using flux technology. LBO crystals is an excellent nonlinear crystal.For frequency doubling(SHG),tripling(THG) of Nd:YAG,Nd:YLF,Nd:YVO4 lasers, it is one of the most useful nonlinear optical materials in ultraviolet and visible laser applications.


HGO grows Lithium Triborate (LiB3O5, LBO) Non... (read more)

HG Optronics, Inc. - Double-Convex Lenses

Double Convex Lenses are used in image relay applications, or for imaging objects at close conjugates. Double Convex Lenses have positive focal lengths, along with two convex surfaces with equal radii. Aberrations will increase as the conjugate ratios increase. Double-Convex Lenses are used in a range of industries or applications. HG OPTRONICS offers Double Convex lenses with a variety... (read more)

HG Optronics, Inc. - KDP & DKDP Crystal

KDP Potassium Dihydrogen Phosphate and KD*P or DKDP Potassium Dideuterium Phosphate 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 and quadrupling of a Nd:YAG laser under the room temperature. In add... (read more)

HG Optronics, Inc. - Plano-Convex Rectangular Cylindrical Lenses

Plano-convex rectangular cylindrical lenses are useful for line imaging or uni-axial magnification in a wide range of applications. These lenses may be combined with other lenses to form complex imaging systems.

4.1. Why are Plano-conves Retangular Cylindrical lenses used?

Plano-convex rectangular cylindrical lenses are available with positive or negative focal lengt... (read more)

HG Optronics, Inc. - High Damage Threshold Diffusion Bonded Crystals

HGO's Diffusion Bonded Crystals reduce thermal lens effects in high-power lasers, offering customization for varied applications. Ideal for solid-state, high-power, and compact laser systems. Elevate laser performance with us. (read more)

HG Optronics, Inc. - Optical Crystals from HG Optronics, Inc

Nd:YVO4 (Neodymium Doped Yttrium Orthovanadate) crystals is one of the most promising commercially available diode pumped solid state laser materials, especially, for low to middle power density. This is mainly for its higher absorption and emission features than Nd:YAG crystal. Pumped by laser diodes, Nd:YVO4 crystal has been incorporated with high NLO coefficient crystals (... (read more)

HG Optronics, Inc. - High-Quality LiF Crystal Lithium Fluoride

Exceptional Transmittance in VUV Region and Versatile Optical Material (read more)

HG Optronics, Inc. - BBO Nonlinear crystal Beta-Barium Borate Crystal

HGO grows BBO Nonlinear crystals using flux technology. BBO crystal transparency ranges from 188 nm to 5,2 µm, which includes reasonable transparency from 3-5,2 µm for few tens µm thick crystals, while their phase-matchable range spans almost over the entire transparency range. Combined with other magnificent properties of BBO, it is favorable for numerous nonlinear par... (read more)

HG Optronics, Inc. - CaF2 crystal Calcium Fluoride windows for VUV

Main application:

1) VUV , UV ,IR optical systems

2) CaF2 crystals used for stable femtosecond white light generation from UV to IR. (read more)

HG Optronics, Inc. - Discover LBO and BBO Nonlinear Crystals

Unleash the Power of Laser Performance (read more)

HG Optronics, Inc. - Convex Circular Cylindrical Lenses

Plano-convex circular cylindrical lenses are useful for line imaging or uni-axial magnification in a wide range of applications. These lenses may be combined with other lenses to form complex imaging systems.

3.1、How to control the radius correctly?

HG OPTRONICS use the precision templet for processing to make sure the final R value matched your drawings.

(read more)
HG Optronics, Inc. - Micro Sizes Rod Lens

Rod Lenses are used for fiber coupling and laser diode beam shaping, lenses with a 0mm working distance are ideal for collimation of single and multi-mode optical fibers and laser diodes because the lens can be positioned and glued directly to the emission source. For focusing applications, or in instances where the lens can’t be in direct contact with the emission source, all lens... (read more)

HG Optronics, Inc. - Yb:YAG crystals

YbYAG crystal is more suitable for diode-pumping than the traditional Nd-doped systems. It can be pumped at 0.94 μm laser output. Compared with the commonly used Nd:YAG crystal, Yb:YAG crystal has a much larger absorption bandwidth to reduce thermal management requirements for diode lasers, a longer upper-state lifetime, three to four times lower thermal loading per unit pump power. Y... (read more)

HG Optronics, Inc. - Co2+:MgAl2O4 Cospinel

Co2+:MgAl2O4 Cobalt-Doped Magnesium Aluminate Spinel


  • 1) Rare excited absorption
  • 2) High constant of Q-switch
  • 3) High absorption section
  • 4) Long excited lifetime
  • 5) Evenly distributed cobalt
  • 6) Wide absorption band
(read more)
HG Optronics, Inc. - Optical Excellence with Meniscus Lenses

Discover the world of Meniscus Lenses – convex-concave marvels that enhance image quality. Ideal for infrared applications and more. (read more)

HG Optronics, Inc. - KDP & DKDP Crystal for Laser frequency conversion

Main applications:

1. Laser frequency conversion — harmonic generation for high pulse energy;

2.Electro-optical modulation;

3. Q-switching crystal for Pockels cells;


1) Good UV transmission;

2) High birefringence

3) High optical damage threshold;

4) High nonlinear coefficients;

5) Non-hygroscopic, chemically... (read more)

HG Optronics, Inc. - UV Fused Silica Plano-Convex Lenses

A Plano-Convex lens causes light to focus to a point,it has a positive focal length,which is ideal for light collimation or for focusing applications utilizing monochromatic illumination, in a range of industries. HG OPTRONICS offers Plano-Convexlenses with a variety of coating options.

1.1. What is Plano-Convex Lenses?

Plano-convex lenses are positive focal length O... (read more)

HG Optronics, Inc. - Precision Imaging with Cylindrical Lenses

Explore our precision-engineered Plano-Concave Circular Cylindrical Lenses designed for uni-axial negative imaging, anamorphic beam expansion, and versatile optical applications. (read more)

HG Optronics, Inc. - Laser Optics

C-lens are specifically designed for fiber optics applications such as collimator, isolator, switch, collimator array and laser assembly. Compare to other gradient index lens, C-lens have several advantages including low cost, low insertion loss in long working distance, and wide working distance range. With our experienced optical design engineers, HG OPTRONICS can also provide custom d... (read more)

HG Optronics, Inc. - a-BBO Crystal alpha -Barium Borate

α-BBO (α-BaB2O4) is a negative uniaxial crystal which has large birefringence over a broad transparent range of 190nm to 3500nm. α-BBO is an excellent crystal especially in UV and high power applications.

The physical, chemical, thermal, and optical properties of alpha-BBO crystal are similar to those of Beta-BBO. However, there is no second... (read more)

HG Optronics, Inc. - TGG crystal Terbium Gallium Garnet

TGG is an excellent magneto-optical crystal used in various Faraday devices(Polarizer and Isolator) in the range of 400nm-1100nm, excluding 475-500nm.


TGG crystal Terbium Gallium Garnet is an essential magneto-optical crystal l for faraday polarizer. Faraday polarizer is composed of the TGG crystal rod and a specially designed magnet. The polarization o... (read more)

HG Optronics, Inc. - Coated Double-Concave Lenses

Double Concave Lenses are used in beam expansion, image reduction, or light projection applications. These lenses are also ideal for expanding the focal length of an optical system. Double Concave Lenses, which have two concave surfaces, are Optical Lenses with negative focal lengths. HG OPTRONICS offers Double Concave lenses with a variety of coating options.

4.1.What is B... (read more)

HG Optronics, Inc. - Broadband AR Coated Achromatic Lenses

Achromatic Lenses are used to minimize or eliminate chromatic aberration. The achromatic design also helps minimize spherical aberrations. Achromatic Lenses are ideal for a range of applications, including fluorescence microscopy, image relay, inspection, or spectroscopy. Achromatic Lenses, which are often designed by either cementing two elements together or mounting the two elements in... (read more)

HG Optronics, Inc. - Crystals and Optics Coating Service

HGO have advanced coating machines which can meet endusers’ different application requirement. (read more)

HG Optronics, Inc. - LiNbO3 crystal Lithium niobate

LiNbO3 is widely used as electro-optic modulators and Q-switches for Nd:YAG, Nd:YLF and Ti:Sapphire lasers as well as modulators for fiber optics.


Lithium niobate (LiNbO3, LN) is a multi-purpose material in photonics and optoelectronics fields. It features excellent nonlinear, electro-optic, and piezoelectric properties. it is widely used as elec... (read more)

HG Optronics, Inc. - KTiOPO4 or KTP/Large nonlinear optical coefficient

Potassium Titanyl Phosphate (KTiOPO4 or KTP) is widely used in both commercial and military lasers including laboratory and medical systems, range-finders, lidar, optical communication and industrial systems.


KTP Nonlinear crystal Potassium Titanyl Phosphate is the most commonly used material for frequency doubling of Nd-doped lasers, particularl... (read more)

HG Optronics, Inc. - Pr:YLF crystals

HGO grows Pr:YLF laser crystals using Czochralski technology. Pr3+:YLF has been found as promising laser material for producing visible lasers directly and UV lasers through intracavity second-harmonic generation. Very few laser materials have the necessary properties for the realization of lasing in the visible spectral range. Trivalent praseodymium (Pr3+) is known to be an i... (read more)

HG Optronics, Inc. - YVO4 crystal Yttrium Orthovanadate

Main applications:

  • 1) Fiber-optic isolators
  • 2) Beam displacers.
  • 3) optical circulators
(read more)
HG Optronics, Inc. -  Negative Meniscus Lenses

The Positive Meniscus Lenses are a convex-concave lens, but it is thicker at the center than at the edges. They are felt polished and are used universally in the ophthalmic industry where convention dictates that lens power be specified in Diopters.

The Negative Meniscus Lenses are a convex-concave lens, but it is thinner at the center than at the edges. Otherwise description is s... (read more)

HG Optronics, Inc. - Optical Domes

Optical domes are lenses with two concentric spherical surfaces. Sometimes they are being referred to as bent plan parallel plates. Consequently it is customary to define parallelism between two surfaces as the maximum thickness variation between the two surfaces.

In perfect domes the convex radius is equal to the sum of the dome thickness and concave radius. Slight departures fro... (read more)

HG Optronics, Inc. - Er:Yb:glass crystal

Er3+, Yb3+ co-doped phosphate glass is a well-known and commonly used active medium for lasers emitting in the “eye-safe” spectral range of 1,5-1,6 µm.

As an eye-safe wavelength laser, 1540um ,Er3+/Yb3+ co-doped phosphate glass lasers have attracted much attention for their compactness and low cost, such as laser generation and signal amplif... (read more)

HG Optronics, Inc. - Positive Meniscus Lenses

The Positive Meniscus Lenses are a convex-concave lens, but it is thicker at the center than at the edges. They are felt polished and are used universally in the ophthalmic industry where convention dictates that lens power be specified in Diopters.

The Negative Meniscus Lenses are a convex-concave lens, but it is thinner at the center than at the edges. Otherwise description is s... (read more)

HG Optronics, Inc. - YAG window crystals Yttrium Aluminum Garnet

Pure YAG Yttrium Aluminum Garnet is a new substrate and window material that can be used for both UV and IR optics. It is particularly useful for high-temperature and high-energy applications. The mechanical and chemical stability of YAG is comparable to sapphire crystal, but YAG is unique with no birefringence which is extremely important for some optical applications.

Des... (read more)

HG Optronics, Inc. - Tm:YLF crystal

HGO grows Tm:YLF laser crystals using Czochralski technology. Tm:YLF is an important middle infrared laser crystal. Because Tm:YLF is negative uniaxial crystal, whose thermal refractive index coefficient is negative, some thermal distortion may be counteracted and high-quality light can be output. Conveniently pumped at 792nm, 1.9μm linearly polarized beam is output in a axis, and non... (read more)

HG Optronics, Inc. - Ti:Sapphire Crystal Titanium Doped Sapphire

Ti:Sapphire crystal is the most widely used tunable solid-state laser material combining the supreme physical and optical properties with the extremely broad lasing range. Its lasing bandwidth can support pulses < 10fs making it the crystal of choice for femtosecond mode-locked oscillators and amplifiers. The absorption band of Ti:Sapphire centers at ~ 490 nm so it may be conveniently... (read more)

HG Optronics, Inc. - Nd:YLF Crystal

HGO grows Nd:YLF laser crystals using Czochralski technology. Nd3+:YLF crystal is characterized by its long lifetime of 4F3/2 neodymium energy level. Compared to Nd:YAG, the lower thermal conductivity and a weak negative dn/dT lead to lower thermal distortions and allow to achieve a better output beam quality. Another distinctive feature is the high UV transparency, which is f... (read more)

HG Optronics, Inc. - Nd:YAG crystals

Nd:YAG is the earliest and most famous laser host crystal. Since it combines great advantages in many basic properties,Nd:YAG is the ubiquitous presence for near-infrared solid-state lasers and their frequency-doubler, tripler, and higher order multiplier.

It is widely used in industrial, medical, military and scientific fields.. Nd:YAG crystals are wildly used in all types of sol... (read more)

HG Optronics, Inc. - Nd:GdVO4 Crystal

Nd:GdVO4, is a promising material for diode pumped lasers. Similar to the more well-known Nd:YVO4 crystal, Nd:GdVO4 crystal also exhibits high gain, low threshold, and high absorption coefficients at pumping wavelengths. Nd:GdVO4 has the additional advantage over Nd:YVO4 of a much higher thermal conductivity. For CW lasing at 1.06 um and 1.34 um and intracavity doubling with KTP and LBO,... (read more)