Stoichiometric Lithium Tantalate
Description
Stoichiometric Lithium Tantalate (SLT) is superior to congruently grown Lithium Tantalate (CLT) as it is closer to ideal ratio of Lithium to Tantalum (50:50). This improved ratio provides the crystal with much lower defect density, thereby reducing the chances for optical damage and improving UV transmittance, at the same time having larger non-linear and electro-optic coefficients. When used in quasi-phase matched applications, SLT requires significantly less voltage during the periodical poling process, thus allowing the manufacture of thicker chips.
Stoichiometric Lithium Tantalate
Specifications |
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|---|---|
| Crystal Type: | LT (LiTaO3) |
| Phase Mathcing Type: | Not Applicable |
| Width: | -- mm |
| Height: | -- mm |
| Length: | -- mm |
| Flatness: | Not Available |
| Surface Quality (Scratch-Dig): | Not Available |
| AR Coating: | Both Sides |
Features
Low Coercive Field
Higher Optical Damage Threshold
Available Undoped and MgO doped
Applications
Mainly for QPM devices where photorefractive damage resistance in the visible and UV spectrum is required
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Frequently Asked Questions
Stoichiometric Lithium Tantalate (SLT) is a crystal that has a closer ratio of Lithium to Tantalum, resulting in lower defect density and improved UV transmittance.
SLT is superior to CLT due to its improved ratio of Lithium to Tantalum, which reduces the chances of optical damage and enhances UV transmittance.
SLT is mainly used in quasi-phase matched (QPM) devices where resistance to photorefractive damage in the visible and UV spectrum is required.
SLT has a low coercive field, higher optical damage threshold, and is available in both undoped and MgO doped forms.
The transparent wavelength range of SLT is 270 - 5500 nm, and the refractive indices at 633 nm are ne = 2.177 and no = 2.1745.