YCOB Crystal
YCOB crystal is one of the most widely used nonlinear optical crystals. Its nonlinear optical coefficient is equivalent to that of BBO crystal and LBO crystal. The effective frequency multiplication coefficients of the second and third order reach 2, 8 and 1, 4 times of KDP respectively.The YCOB crystal has the following advantages : large aperture, high damage intensity in femtosecond regime,about2000-2500GW/cm2 wide allowable Angle range and allowable temperature range,small dispersion Angle, shorter growth period by Cz method.At the same time, it has stable physical and chemical properties (non-deliquescent) and good machining properties. Therefore, it is considered to have good application prospects of blue-green light and UV band optical frequency multiplier crystal.
YCOB (YCa4O(BO3)3, Yttrium Calcium Oxyborate)—Nonlinear crystal considered to have good prospects of UV band optical frequency multiplier
One of the latest technical achievements connected with YCOB is the generation of 2.35-W CW green output (λ = 532 nm) in a 1.2-cm-long crystal (θ = 64.5◦, φ =35.5◦) via inter cavity SHG of a diode-array end-pumped Nd:YVO4 laser (P = 5.6W). Another similar application is THG of NdYVO4 laser radiation. Using the KTP crystal for frequency doubling and a 1.1-cm-longYCOB crystal (θ = 106◦, φ =77.2◦), the authors managed to obtain 124mW of quasi-CW light (pulse repetition frequency 20 kHz) at 355 nm.
Parameter
| Crystal Structure | Monoclinic, Point group m |
| Lattice Parameter | a=8.0770 Å, b=16.0194 Å , c=3.5308 Å , β=101.167º, Z=2 |
| Melting Point | About 1510ºC |
| Mohs Hardness | 6~6.5 |
| Density | 3.31 g/cm3 |
| Thermal Conductivity | 2.6 W/m/K (||X), 2.33 W/m/K (||Y), 3.1 W/m/K (||Z) |
| λ[μm] | τp[ns] | Ithr[GW/cm2] | Note |
| 0.532 | 6 | 1 | |
| 1.064 | 10 | 85 | 1 pulse |
| 6 | >1 | 10Hz | |
| 1.1 | 18.4 | along Y axis, E||Z |
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| The blue line is the spectral intensity after SHG. The red line is Wizzler’s phase | The blue line is the pulse FTL shape after SHG. The red line is the shape of time Wizzler measured. |
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| OPA spectra were obtained by the first stage (black solid line) based on BBO crystals and the second stage (red solid line) based on YCOB crystals. | X-ray sway curves of YCOB wafers |
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| Transmission spectrum of YCOB crystal |
YCOB crystal case (1) for OPA
Size: 10*10*4, 10*10*5, 10*10*6;
Coating S1/S2: AR/AR@1030nm
- Electric resistivity is high
- Temperature acceptance is high
- Laser induce damage threshold is high
- Less anisotropy
- Thermal expansion coefficient is small
- Less parametric luminescence
- SHG(second-harmonic generation),THG(third-harmonic generation)
- OPO(optical parametric oscillator)
- OPA(optical parametric amplification)
- OPCPA (optical parametric chirped-pulse amplification)
- Piezoelectric acceleration sensors
- Pressure sensors
- Gas sensors
| Temperature effects on laser action of Yb3+:YCa4O(BO3)3 crystal Optics and Laser Technology 108 (2018) 360–363 |
| Effect of 120 MeV Au9+ ion irradiation on structural, optical and dielectric properties of YCa4O(BO3)3 nonlinear optical crystal Nuclear Instruments and Methods in Physics Research B 280 (2012) 134–139 |
| Investigation on intracavity second-harmonic generation at 1.06μm in YCa4O(BO3)3 by using an end-pumped Nd:YVO4 laser Optics Communications 182 2000 187–191 |
| A combinatorial approach to the discovery and optimization of YCa4O(BO3)3-based luminescent materials Applied Surface Science 252 (2006) 2493–2496 |
| Optical characterizations of YCa4O(BO3)3 and Nd:YCa4O(BO3)3 crystals Optical Materials 29 (2007) 975–982 |
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| Effect of disordered structure and crystal defects on heat transfer behavior in Er:Yb: YCa4O(BO3)3 crystal Journal of Physics and Chemistry of Solids 124 (2019) 121–129 |
| Crystal growth and characterization of 4 in. YCa4O(BO3)3 crystal Journal of Crystal Growth 401 (2014) 160–163 |
| Scintillation and optical properties of Pb-doped YCa4O(BO3)3 crystals Nuclear Instruments and Methods in Physics Research A 652 (2011) 238–241 |
| Optical bistability in Yb3+:YCa4O(BO3)3 crystal Optical Materials 26 (2004) 281–286 |
| Laser action in Yb :YCOB Yb3+:YCa4O(BO3)3 Optics Communications 156 1998 327–330 |
| Properties of single crystal piezoelectric Ca3TaGa3Si2O14 and YCa4O(BO3)3 resonators at high-temperature and vacuum conditions Sensors and Actuators A 216 (2014) 167–175 |
| Crystal growth of YCa4O(BO3)3 and its orientation Journal of Crystal Growth 197 (1999) 228—235 |
| Combustion synthesis and optical properties of Oxy-borate phosphors YCa4O(BO3)3:RE3+ (RE = Eu3+, Tb3+) under UV, VUV excitation Journal of Alloys and Compounds 585 (2014) 633–636 |
| Laser tunability in Yb3+:YCa4O(BO3)3{Yb:YCOB} Optics Communications 167 1999 149–153 |
| Polarised infrared and Raman studies of YCa4O(BO3)3 a non-linear optical single crystal Spectrochimica Acta Part A 60 (2004) 2733–2739 |
| Spectral and luminescent properties of Yb3+ ions in YCa4O(BO3)3 crystal Chemical Physics Letters 361 (2002) 499–503 |
| Second harmonic generation in Yb doped YCa4O(BO3)3 Optics Communications 155 1998 332–334 |
| Refractive index profiles in YCa4O(BO3)3 and Nd:YCa4O(BO3)3 waveguides created by MeV He ions Nuclear Instruments and Methods in Physics Research B 191 (2002) 789–793 |
| Diode-end-pumped solid-state ultraviolet laser based on intracavity third-harmonic generation of 1.06 μm in YCa4O(BO3)3 crystal Optics & Laser Technology 34 (2002) 695 – 698 |
The Growth of YCOB Nonlinear Crystals — 2020/12/21— CRYLINK
YCOB crystals crylink have supplied
| Product | Size(mm) | Angle | Orientation |
| YCOB | 10x10x4 | ||
| 10x10x5 | |||
| 10x10x6 | |||
| 18x18x2 | theta=37° phi=0° | XZ | |
| 18x18x2 | theta=37° phi=0° | XZ | |
| 18x18x5 | theta=37° phi=0° | XZ | |
| 18x18x4 | theta=37° phi=0° | XZ |
YCOB Crystal
18*18*2mm
18*18*4mm
18*18*4mm
Orientation: XZ plane,Type Ⅰ;
θ=37°, φ=0°
Size: 10x10x4 mm
Size: 10x10x5 mm
Size: 10x10x6 mm
