Tm:YAP “b”切割

Tm:YAP “b”切割

Supplier
Blueoptics
Part Number
“b”切割
Category
Laser Crystals
Origin
China

Tm:YAP is thulium-doped yttrium aluminate, an ideal medium for 2-micrometer solid-state laser sources. Self-quenching involving its H4 and F4 energy levels can generate two-photon excitation in the upper level, potentially providing high quantum efficiency. Absorption between H6 and H4 peaks at 795nm, well suited to high-power AlGaAS diode pumping. Its absorption peak is broader than Tm:YAG, making it suitable even with diode wavelength drift. Emission wavelength depends on crystal orientation; common cuts are along a and b.

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Overview

Tm:YAP is thulium-doped yttrium aluminate, an ideal medium for 2-micrometer solid-state laser sources. Self-quenching involving its H4 and F4 energy levels can generate two-photon excitation in the upper level, potentially providing high quantum efficiency. Absorption between H6 and H4 peaks at 795nm, well suited to high-power AlGaAS diode pumping. Its absorption peak is broader than Tm:YAG, making it suitable even with diode wavelength drift. Emission wavelength depends on crystal orientation; common cuts are along a and b.

Specifications

ParameterValue
Absorption Peak793.5nm
Peak Effective Pump Absorption Coefficient (4% Tm)aa=3.3/cm
Peak Emission Wavelength1.98μm
Dopant ConcentrationTm: 0.2~15at%
Crystal Orientation[010] or [100] (Pnma), deviation within 5°
Crystal DimensionsDiameter 2~10mm, length 2~100mm; customizable to customer requirements
Wavefront Distortion≤0.125λ/25mm@632.8nm
Extinction Ratio≥25dB
Dimensional ToleranceDiameter :+0.00/-0.04, Length &pλusmn;0.5mm
Cylindrical ProcessingFine ground or polished
End-Face Parallelism≤10"
End-Face Perpendicularity to Rod Axis≤5′
End-Face Flatnessλ/8@632.8nm
Surface Finish10/5 (MIL-O-13830A)
Edge Bevel0.15±0.05mm
Antireflection Coating Reflectance≤0.25%
Optical Transition³F₄®³H₆
Absorption Cross Section3.7~8.5 x 10⁻²¹cm²
Fluorescence Lifetime4.4~7.7ms
Emission Cross Section5~6 x 10⁻²¹cm²
Emission Wavelength1.98mm@a Axis ,1.94mm@b Axis
Diode Pump Wavelength794.8nm@a Axis ,793.5nm@b Axis
Space GroupD162h (Pnma)
Lattice Constanta=5.307,b=7.355,c=5.176
Melting Point1850±30 ℃
Thermal Conductivity0.11 W·cm⁻¹·K⁻¹
Coefficient of Thermal Expansion4.3//a,10.8//b,9.5//c
Density5.35 g/cm⁻³
Refractive Index1.943//a, 1.952//b, 1.929//c @589nm
Hardness (Mohs)8.5-9
Refractive index1.943//a,1.952//b,1.929//c at 0.589 mm

Key Features

Excellent physical and chemical properties; higher laser output efficiency in the 2mm band than Tm:YAG; direct linearly polarized output; LD pump absorption bandwidth is 4nm wider than that of Tm:YAG; the 795nm pump absorption band is better matched to commonly used AlGaAs diode emission wavelengths.

Datasheet

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Supplier Information

Bl
Blueoptics
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Shanghai Blue Crystal Optoelectronic Technology Co., Ltd., established in January 2010, specializes in the R&D, production, processing, and sales of laser crystals (Nd:YAG, YAP), scintillation crystals (Ce:YAG), optical crystals, and various optical components. Located in Qingpu District, Shanghai, the company boasts a high-level scientific research and innovation team and skilled precision processing personnel. Its main business includes the production and precision micro-machining of laser crystals, scintillation crystals, optical crystals, and other optical products, which are widely applied in industrial, medical, military, and scientific research fields, providing high-quality optoelectronic functional materials and precision optical components. Adhering to the spirit of 'integrity, pragmatism, quality, and innovation', the company is committed to technological innovation and first-class service, striving to build a high-end optoelectronic components brand and become a top optical component supplier both domestically and internationally.

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Tm:YAP “b”切割
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