博文

Er Glass EAT14 Presentation Video

图片

Cr: YAG Crystal

Cr: YAG crystal , also known as chrome-doped yttrium aluminum garnet, is a good passive Q-switching product or saturated absorber. Cr: YAG crystals (passive Q-switches, saturated absorbing) provide high-power laser pulses without the need for electro-optic Q-switches. Such passive Q-switching materials or saturated absorbers can significantly reduce the pulsed laser and stay clear of the high voltage power supply of electro-optic Q-switches. Cr4+: YAG (chromium-doped yttrium light weight aluminum garnet) is widely utilized in Nd: YAG, Nd: Ce: YAG, Nd: YLF, Nd: YVO4, Yb: YAG lasers with wavelengths ranging from 800nm to 1200 nm. Easy Q-switches or saturable absorbers can give high-power laser pulses in the absence of EO Q-switches. Cr4+: YAG crystals are excellent crystals for passive Q-switched diode-pumped or light pumped Nd: YAG, Nd: YLF, Nd: YVO4 or other Nd and also YB-doped lasers at wavelengths ranging from 0.8 to 1.2 µm. Due to its chemical stability, longevity, UV resistance, g...

Pockels Cells Crystal

1. Pockels Cells Based on the electro-optic effect , when the applied electric area acts on the Pockels cell crystal ( electro-optic crystal ), the Pockels cell crystal (electro-optic crystal) is like a wave plate whose phase delay is related to the used electric field. The polarization state of the outbound light from the Pockels cell crystal will certainly change so that the strength as well as amplitude of the outbound light from the analyzer are regulated, which is electro-optic inflection, and the modulation tool is called a Pockels cell. 2. Pockels cell crystal The crystals that produce the electro-optical effect are called Pockels cell crystals, that is, electro-optical crystals. They each have their benefits. Presently, the major Pockels cell crystals on the marketplace consist of BBO crystals , DKDP crystals , KTP crystals , as well as LN (LiNbO3) crystals . (1) BBO crystal BBO crystal , additionally called barium metaborate crystal, chemical formula BaB2O4, is an electro-opt...

Er: YAG Crystal

图片
Er: YAG crystal , likewise referred to as erbium-doped yttrium aluminum garnet, with the chemical formula Er: Y3Al5O12, is a well-integrated laser crystal currently commonly made use of in the clinical field fields. Er: YAG crystal is based upon YAG crystal as well as Er3+ ions as doping ions. It comes from the cubic crystal system and is one of the laser crystals that work at room temperature. Er: YAG crystal has an abundant energy level structure and also great laser performance. It can stably send out lasers with wavelengths of 1.64 μm, 1.78 μm, and also 2.94 μm, permitting high-concentration ion doping, and the power degree lifetime of the laser decreases when high doping is used. Little, the laser performance is boosted. The 2.94 μm emission wavelength of Er: YAG with a doping focus of 50% is located at the water absorption optimal, which can be highly soaked up by water molecules as well as can also be absorbed by biological cells. Since the absorption coefficient of water at thi...

What is Er glass

图片
 (1) What is Er glass? Er3+, Yb3+ co-doped phosphate glass ( Er, Yb: phosphate glass ) is a popular and normally used active device for lasers generating in the "eye-safe" spectral range of 1,5-1,6 µm. (2) What's the system of erbium glass? Phosphate glass integrates a long life time (~ 8 ms) of 4I13/2 Er3+ top laser degree with a low (2-3 ms) life time of 4I11/2 Er3+ level that continues to be in vibration with Yb3+ 2F5/2 fired up state. Quick non-radiative multi-phonon leisure from 4I11/2 to 4I13/2 level significantly reduces the back-energy transfer as well as up-conversion losses due to the communication between Yb3+ and also Er3+ ions, thrilled at the 2F5/2 along with the 4I11/2 levels, respectively. Essentially continuously, erbium-ytterbium-doped phosphate glass is pumped with wavelengths around the 975-nm absorption height of Yb3+ ions. That leads to the excitation of the ytterbium ions. Afterwards, the excitation power might be transferred to close-by erbium ions...

Nd: YVO4 crystal qualities

图片
Neodymium doped yttrium vanadate (Nd: YVO4) is a kind of laser crystal extensively utilized at present. It has superb efficiency as well as is among the major laser crystals for semiconductor pumped solid state lasers today. Nd: YVO4 crystal is a tetragonal crystal, belonging to the uniaxial crystal system, which is composed of doped ion Nd and also laser matrix YVO4. Compared to another frequently utilized Nd: YAG crystal, Nd: YVO4 has the advantage of higher absorption coefficient. In a specific variety of absorption transmission capacity, the absorption effectiveness of Nd: YVO4 is 5 times that of Nd: YAG, the transmission capacity is 2.4-6.3 times that of Nd: YAG, as well as the peak wavelength of the absorption top is reached at concerning 808nm, which has satisfied the requirements of present high-power laser diodes. The boosted sample of Nd: YVO4 at 1064nm and also 1342nm are bigger, and also the boosted random sample of Nd: YAG at 1064nm have to do with 3 times that of Nd: YAG...

Nd: YAG principle

图片
Nd: YAG crystal product, likewise called neodymium-doped yttrium aluminium garnet crystal, is a sort of laser tool crystal with good thorough efficiency for solid-state laser. YAG has been and will continue to be the extra widely utilized laser crystal; whether strong state or light pump, CW or pulse, it has an one-of-a-kind mix of qualities conducive to laser operation. Nd: YAG pump tube of using triggered compounds crystal generally krypton light or xenon lamp and pump broadband discharge range is a continual range, however only a few fixed spectrum top absorbed by neodymium ions, so the pump is just a small part of the advantageous spectrum energy is used, and also most are not taken in spectrum power is transformed to heat, so the power utilization proportion is low. The Nd: YAG absorption range ranges from 0730 to 0760 microns and also 0.790 microns to 0.820 microns. The spectrum can be taken in, and after that it will trigger the atom to shift from reduced to higher power degre...

What is Co: Spinel

图片
Cobalt spinel , chemical formula Co: MgAl2O4, spinel is a hard, secure crystal that brightens well. Cobalt quickly changes magnesium in spinel without the need for added charge-compensating ions. Passive Q-switches or saturable absorbers produce high-power laser pulses without using electro-optic Q-switches , decreasing bundle dimension and getting rid of high-voltage power products. Co: Spinel has actually been shown to be an extremely effective passive Q-switch for giving off 1.2 µm - 1.6 µm lasers. Co2+ activated MgAl2O4 (Co: MALO, Co: back) can be used as a medium for easy Q-switching of lasers operating in the 1.3 - 1.6 µm spectral array. Examples are 1.32 µm and 1.44 µm Nd: YAG lasers , 1.31 µm iodine lasers, and especially 1.54 µm erbium glass lasers. The completely high absorption cross-section of the Co2+ ion and the practical absence of excited-state absorption make this material a very effective passive Q-switch (without the need for intracavity) for various sorts of erbiu...

Why choose phosphate glass

图片
Optical properties of the host medium such as uniform and inhomogeneous expanding as well as thrilled and ground state absorption cross sections are figured out by the structure. Fused silica is an extremely helpful host for applications where very long amplifiers can be utilized. It has high toughness, low development and also good optical transmission properties along with higher chemical security and better mechanical residential or commercial properties than phosphate glasses . Though tiny silica laser tools have actually been revealed to function, silica based systems suffer from the rare earth focus being limited by focus quenching (or "clustering"), low solubility and various other undesirable impacts. Much more complex silicate glasses can conquer several of these issues however these sorts of glasses still have actually low Er stimulated emission cross sections and also reduced laser efficiencies at 1.54 μm. Phosphate glass is a prominent laser oscillator/amplifier ...

Crylink's 1500 laser for Medical Applications

图片
  Theory Gain medium Er: Yb Glass It's used to make a 1500nm laser. The Er is a three-level structure with a low pump radiation absorption rate and low output energy. It is the safest for the human eye and penetrates well in smoke since it produces a laser with a wavelength of 1500nm. It has a wide range of uses in both military and civilian settings. Q-Switch Crystal - Co: Spinel It's used to make a 1500nm laser. The Er is a three-level structure with a low pump radiation absorption rate and low output energy. It is the safest for the human eye and penetrates well in smoke since it sends a laser with a wavelength of 1500nm. It has a lot of uses in both military and civilian settings. Feature Can be strongly absorbed by water High reliability and low cost Simple structure In the communication window In the human eye safety band Application Treating Acne Scars The Treatment Of Melasma The Treatment Of Inflammatory Facial Acne What are the advantages of 1500nm lasers for medical ...

Crylink's 1300nm laser for medical applications is described in detail.

图片
Because the water molecules in the 1300nm band are substantially absorbed, 1300nm lasers offer a wide variety of uses in clinical medical hemostasis, laser cosmetic, skin disease therapy, and dentistry treatment. The Nd:YAP laser crystal has a wavelength of 1300 nm. 1300nm Laser (Nd:YAP) Laser Crystal - Nd:YAP The transition cross section of the Nd:YAP crystal is enormous, and it has a high photomechanical coefficient, thermal conductivity, and polarization output. For high-power 1300nm lasers, the Nd:YAP crystal offers clear benefits. Long crystal rods constructed of long-term storage by rounding, cutting, polishing, and coating are utilized in the structure drawing. The holographic mirror M1 and the associated output mirror M2 make up the laser cavity. The frequency modulation range of the BBO crystal is 189-3500nm, and it is constantly changeable. In Nd:YAP lasers, BBO crystal is commonly employed. Feature Great optomechanical coefficient Large transition section High thermal condu...
图片
  An overview of Crylink's 532nm laser for Medical Application One of the most often utilized lasers in medicine is the 532nm laser (frequency-doubled Nd:YAG laser). Because red substances absorb green laser energy at a rapid rate, blood arteries rich in hemoglobin may absorb the majority of the laser energy. In patients with diabetic retinopathy, frequency-doubled Nd:YAG lasers ( wavelength532 nm ) are utilized for pan-retinal photocoagulation. These lasers are also used to cure eye floaters in some circumstances. Gain medium - Nd YAG In order to emit an infrared laser with a wavelength of 1064nm, the working medium of the laser is doped with trivalent Neodymium ions in a yttrium aluminum garnet crystal. AO-Q switch : TeO 2        We employ a TeO2 crystal as an AO-Q-switch so that we may change the radio-frequency signal delivered to the AO-Q-switch to regulate Q. Roughen the Yd:YAG crystal's side face. Its oscillation efficiency is improve...
图片
  1600nm Er YAG Laser For Optical Communication - Laser Crylink 1600nm laser is suitable for optical communication . 1600nm is located in the safe band of the human eye . And 1600nm is located in one of the atmospheric laser transmission windows, the transmission distance is farther, the corresponding distance and resolution and speed resolution are more accurate, and the corresponding photodetector parts have high detection sensitivity. Theory of 1600nm Er YAG laser Gain medium - Er:YAG The 4I11/2~4I13/2 and 4I13/2~4I15/2 transitions of the Er3+ ion produce laser radiation in two mid-infrared bands. The wavelength of the 4I11/2~4I13/2 transition is 2.7 μm~3 μm. 4I13/2~4I15/2 can emit at a wavelength of around 1.6 μm, which can meet the needs of space optical communication and other fields. E-O Q-switch:BBO Electro-optical Q-switching is to realize Q-modulation by using the electro-optic effect of the crystal, inserting a polarizer in the cavity, and using a polarizing plate t...