Er: YAG Laser Medium for Medical and Dental Applications

• Customization: Available
• After-sales Service: Shelf Life One Year (Under Normal Use Conditions)
• Warranty: Shelf Life One Year (Under Normal Use Conditions)
• Model NO.: Er: YAG
• Certification: ISO9001
• Customized: Customized
• Crystal Orientation: <111>±5°
• Transmitted Wavefront Distortion: ≤ 0.125λ Per Inch
• Extinction Ratio: ≥ 25 dB
• Product Dimensions: Diameter ≤ 15 mm, Length ≤ 150 mm
• Dimensional Tolerances: Diameter: 0:0/-0.03 mm, Length: 0/+0.5 mm
• Cylindrical Surface Processing: Precision Ground, Polished, Threaded
• Laser Damage Threshold of Coating: ≥ 5 J/Cm² at 10 Ns, 10 Hz
• Laser Wavelength: 2940 Nm
• Trademark: CRYSTRONG
• Origin: China

Product Description

Laser crystal Er:YAG
Erbium Doped Yttrium Aluminum Garnet  (Er:YAG) is an excellent laser crystal which lases at 2940 nm. This band is at the hydroxyl absorption peak which can be strongly absorbed by biological tissues. So it widely applies to medical area, such as dental (hard tissues), orthopedics, etc.
 

Technical Specifications	Details
Doping Concentration	50 at%
Crystal Orientation	<111>±5°
Transmitted Wavefront Distortion	≤ 0.125λ per inch
Extinction Ratio	≥ 25 dB
Product Dimensions	Diameter ≤ 15 mm, Length ≤ 150 mm
Dimensional Tolerances	Diameter: 0:0/-0.03 mm, Length: 0/+0.5 mm
Cylindrical Surface Processing	Precision ground, polished, threaded
Endface Parallelism	≤ 10 arcseconds
Endface Perpendicularity to Rod Axis	≤ 5 arcminutes
Endface Flatness	λ/10 at 632.8 nm
Surface Quality	10/5 (MIL-0-13830A)
Chamfering	0.15 ± 0.05 mm
Coating	S1/S2: R ≤ 0.25% at 2940 nm
	S1: PR = 88% ± 3% at 2940 nm; S2: HR ≥ 99.8% at 2940 nm
	Other coatings customizable
Laser Damage Threshold of Coating	≥ 5 J/cm² at 10 ns, 10 Hz
Laser Wavelength	2940 nm
Refractive Index	1.79 at 2940 nm
Special Features	Wedge angles, concave/convex surfaces, thermal gold plating, etc.

About Us:
Crystrong Photonics Technology Co., Ltd. was established in 2012. The company integrates research and development (R&D), production, and sales, covering the entire laser industry chain. It serves the global laser application field and is committed to becoming a globally influential laser industry solution provider. Crystrong excels in various crystal growth technologies. Their crystal products span the infrared, visible light, and ultraviolet bands, and they have a track record of supporting large-scale national projects. As a long-term strategic partner of renowned domestic and foreign laser manufacturers, Crystrong offers dozens of conventional pockels cell models. These models encompass a variety of crystal materials, wavelengths, and frequencies. Additionally, special pockels cell models can be customized to meet customers' diverse use environments and application requirements. Crystrong also provides coating services and a range of lens optics components, which constitute the core advantage of their entire industry chain, ensuring superior product quality and competitive pricing.

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