Stoichiometric Lithium Tantalate LiTaO3
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 LiTaO3
Specifications |
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|---|---|
| Crystal Type: | LT (LiTaO3) |
| Phase Mathcing Type: | Type I, Type II |
| Mounting: | Unmounted |
| Width: | -- mm |
| Height: | -- mm |
| Length: | -- mm |
| Flatness: | Not Available |
| Surface Quality (Scratch-Dig): | Not Available |
| AR Coating: | Not Coated |
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 as it has a lower defect density, reducing the chances of optical damage, and larger non-linear and electro-optic coefficients.
The features of SLT include a low coercive field, higher optical damage threshold, and it is available in both undoped and MgO doped forms.
SLT is mainly used in quasi-phase matched (QPM) devices where resistance to photorefractive damage in the visible and UV spectrum is required.
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.