Laser Er YAG crystals
- Category: >>>
- Supplier: Nanjing MetaLaser Photonics Co. Ltd.
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Product Overview
Description
Product Description
1. Combines various output wavelength with the superior thermal and optical properties of YAG.
2. A wide pump band of 600 - 800 nm,and the Er:YAG lasers typically emit light with a wavelength of 2940 nm.
3. Used in medical applications such as surgery, cosmetic dermatology, and in many other laser applications.
4. Generate high power and high energy 1.6 micron 'eye-safe' laser emission thru 2 level resonant pumping schemes.
Features
1. Works in a relatively eye-safe wavelength region
2. Strongly absorbed by water, hydroxyapatite and human body fluid
3. Wide pump band from 600~800 nm
4. Works well under room temperature
5. High slope efficiency
6. Good optical quality
Applications
1. Medical laser systems
2. Skin disorder therapy, skin resurfacing
3. Hard tissue removal
4. Blood sugar monitoring
5. Dental laser systems
6. Tooth enamel, Cosmetic surgery
7. Cutting bone and soft tissue, bone surgery
Laser Properties
Value | |
Concentrations | 50 at.% (highly doped); (0.1~1) at.% (low doped) |
Laser transition | 4I11/2 → 4I13/2 (highly doped) 4I13/2 → 4I15/2 (low doped) |
Emission wavelength | 2940 nm (highly doped) 1645 nm (low doped) |
Pump wavelength | 600~800 nm (highly doped) 1530 nm (low doped) |
Fluorescence lifetime | 0.23 ms (highly doped) 2~5 ms (low doped) |
laser transition peak cross section, σl (E-20 cm2) | 3 |
Coatings | < 0.25% @ 2940 nm |
Polishing Specification
Value | |
Orientation Tolerance | < 0.5° |
Thickness/Diameter Tolerance | ±0.05 mm |
Surface Flatness | <λ/8@632 nm |
Wavefront Distortion | <λ/4@632 nm |
Surface Quality | 10/5 |
Parallel | 10″ |
Perpendicular | 5′ |
Clear Aperture | >90% |
<0.1×45° |
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