Coated glass substrate or glass ceramic substrate with resistant multifunctional surface properties, method for production thereof, and use of thereof
US-2021238085-A1 · Aug 5, 2021 · US
Cladding glass for solid-state lasers
US12057679B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12057679-B2 |
| Application number | US-202016844035-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 9, 2020 |
| Priority date | Jul 22, 2019 |
| Publication date | Aug 6, 2024 |
| Grant date | Aug 6, 2024 |
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Abstract
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The present disclosure relates to a glass having a refractive index of at least 1.7 as well as the use of the glass as a cladding glass of a solid-state laser. The disclosure also relates to a laser component comprising a core of doped sapphire and a cladding glass being placed on said core. The cladding glass is arranged on said core such that light exiting from the core due to parasitic laser activity can enter the cladding glass and can be absorbed there. Thus, a laser component with improved efficiency is obtained. The present disclosure also relates to a method for producing the laser component.
First claim
Opening claim text (preview).
The invention claimed is: 1. A glass having a refractive index of at least 1.70, the glass comprising the following components (in % by weight): Component Proportion (% by weight) SiO 2 20 to 50 B 2 O 3 0 to 5 BaO 1 to 15 CaO 0 to 10 SrO 0 to 2 ZnO 0 to 5 Na 2 O 2 to 20 K 2 O 1 to 15 TiO 2 10 to 50 La 2 O 3 0 to 5 ZrO 2 0 to 5 Nb 2 O 5 1 to 20 Y 2 O 3 0 to 5 absorption component 0.1 to 10 As 2 O 3 0 to 1 Sb 2 O 3 0 to 1, wherein the absorption component is selected from the group consisting of: CuO, NiO, CoO, Fe 2 O 3 , V 2 O 5 , CrO, MnO, SeO 2 , and mixtures of two or more thereof, and wherein the glass has a linear thermal expansion of the glass <α glass > in a range of 4.5*10 −6 K −1 to 7.0*10 −6 K −1 in a temperature range of −30° C. to 70° C. 2. The glass according to claim 1 , wherein the equation c × ɛ λ × l > - 1 2 ln ( 1 - R G l a s s / E n ν ) is fulfilled, wherein c is the proportion of the absorption component in the glass in mol %, ε λ is the molar extinction coefficient of the absorption component for light of the wavelength λ in (mm*mol %) −1 , l is the glass thickness in mm, R Glass/Env is the Fresnel coefficient given by the relation R G l a s s / E n v = ( n λ E n ν - n λ G l a s s ) 2 ( n λ E n ν + n λ G l a s s ) 2 with n λ Glass being the refractive index of the glass for light of the wavelength λ and n λ Env being the refractive index of an environment for light of the wavelength λ, and A is the fraction of light of the wavelength λ absorbed by the glass, wherein A is at least 0.95. 3. A cladding glass of a solid state laser, comprising the glass of claim 1 . 4. A laser component, comprising a) a core comprising doped sapphire, and b) a cladding glass according to claim 3 on the core, wherein for radiation in the wavelength range of 750 nm to 850 nm the extraordinary refractive index of the doped sapphire and the refractive index of the cladding glass differ from each other by at most 0.05. 5. A method for producing a laser component ac
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- What does patent US12057679B2 cover?
- The present disclosure relates to a glass having a refractive index of at least 1.7 as well as the use of the glass as a cladding glass of a solid-state laser. The disclosure also relates to a laser component comprising a core of doped sapphire and a cladding glass being placed on said core. The cladding glass is arranged on said core such that light exiting from the core due to parasitic laser…
- Who is the assignee on this patent?
- Schott Ag
- What technology area does this patent fall under?
- Primary CPC classification C03C3/07. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 06 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 11 related publications on this page (citations in our corpus or others sharing the same primary CPC).