Er:YAG (Erbium-doped Yttrium Aluminium Garnet)

Home

Products

Optical Products

Laser Crystal

CY0484 Er:YAG (Erbium-doped Yttrium Aluminium Garnet)

Catalog No.	CY0484
Surface Quality	10/5(MIL-PRF-13830B)
Perpendicularity	≤5′

Er:YAG is a famous laser crystal that can be widely used in medical, such as dental (hard tissues), orthopedics, etc. Stanford Advanced Materials (SAM) is a trusted supplier and manufacturer of Er:YAG products.

Er:YAG Description

Erbium-doped Yttrium Aluminum Garnet (Er:YAG) Crystal combines the exceptional optical properties of YAG with the unique doping of Erbium ions. Er:YAG crystals are renowned for their ability to emit laser light at wavelengths highly absorbed by water, making them indispensable in medical and dental applications, including precise tissue ablation and dental procedures. Moreover, Er:YAG lasers find applications in telecommunications, spectroscopy, and materials processing due to their precise control over mid-infrared wavelengths.

Er: YAG Specifications

Dopant Concentration	Er: ~50 at%
Wavefront Distortion	≤0.125λ/inch(@1064nm)
Extinction Ratio	≥25 dB
Rod Sizes	Diameter:3～6mm, Length:50～120 mm Upon request of customer
Dimensional Tolerances	Diameter:+0.000"/-0.002", Length: ± 0.02"
Barrel Finish	Ground Finish: 400# Grit
Parallelism	≤10"
Perpendicularity	≤5′
Flatness	λ/10
Surface Quality	10/5(MIL-PRF-13830B)
Chamfer	0.006"±0.002" at 45°± 5°
AR Coating Reflectivity	≤ 0.25% (@2940nm)

Notes:

1. To inquire or order a finished crystal, please provide the specifications as listed above. For most applications, we only need to know the following:

1) Nd-dopant concentration; 2) Sizes; 3) Surface quality; 4) Coating.

2. For special requests, please provide a detailed specification for evaluation and fabrication.

Er: YAG Applications

1. Dermatology and Aesthetics:

· Skin Resurfacing: Er:YAG lasers are used for fractional skin resurfacing to treat wrinkles, scars, and pigmentation irregularities.

· Tattoo Removal: They are effective in breaking down tattoo ink particles for tattoo removal procedures.

2. Dentistry:

· Dental Drilling: Er:YAG lasers are employed for cavity preparation, dental enamel ablation, and soft tissue procedures, offering precise and minimally invasive treatments.

· Periodontal Treatment: They can be used for gum disease treatment, pocket sterilization, and gingivectomy.

3. Medical Applications:

· Ophthalmology: Er:YAG lasers are used for procedures like cataract surgery and LASIK (Laser-Assisted in Situ Keratomileusis).

· Lithotripsy: They can be used for non-invasive fragmentation of urinary and gallbladder stones.

4. Materials Processing:

· Precision Cutting and Drilling: Er:YAG lasers can cut and drill various materials, including metals and ceramics, with high precision.

· Microfabrication: They are used for microstructuring and micromachining processes.

5. Telecommunications:

· Optical Fiber Amplifiers: Er:YAG crystals are used as gain media in optical fiber amplifiers to amplify signals in the 1.5-micron wavelength range, which is essential for long-distance telecommunications.

6. Spectroscopy:

· Infrared Spectroscopy: Er:YAG lasers are used in research and analytical instruments for spectroscopic applications, such as analyzing chemical compounds and detecting trace gases.

7. Research and Development:

· Scientific Research: Er:YAG lasers play a crucial role in various research applications, including laser physics, materials science, and quantum optics.

8. Defense and Security:

· Target Illumination: They are used for target illumination and range finding in military and defense applications.

· Countermeasures: Er:YAG lasers can be employed for countermeasure systems to disrupt or blind sensors and targeting systems.

Specification

Dopant Concentration	Er: ~50 at%
Wavefront Distortion	≤0.125λ/inch(@1064nm)
Extinction Ratio	≥25 dB
Rod Sizes	Diameter:3～6mm, Length:50～120 mm Upon request of customer
Dimensional Tolerances	Diameter:+0.000"/-0.002", Length: ± 0.02"
Barrel Finish	Ground Finish: 400# Grit
Parallelism	≤10"
Perpendicularity	≤5′
Flatness	λ/10
Surface Quality	10/5(MIL-PRF-13830B)
Chamfer	0.006"±0.002" at 45°± 5°
AR Coating Reflectivity	≤ 0.25% (@2940nm)