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US 12,107,378 B2Granted
Light absorbing layer and bonded body comprising light absorbing layer
AssigneeJX Advanced Metals Corporation
InventorsYoshiki Yamazaki, Makoto Mikami
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AssigneeJX Advanced Metals Corporation
InventorsYoshiki Yamazaki, Makoto Mikami
Estimating the term…
A light absorbing layer which is bonded to a laser medium to configure a bonded body, wherein the light absorbing layer is formed from a glass material and, in an oscillation wavelength (wavelength of 650 nm or more and less than 1400 nm) of the laser medium, an absorption coefficient is 0.1 to 10.0 cm−1, a difference in refractive index between the light absorbing layer and the laser medium is within ±0.1, and a difference in linear thermal expansion coefficient between the light absorbing layer and the laser medium is within ±1 ppm/K. The present invention relates to a light absorbing layer for preventing parasitic oscillation, and aims to provide a material capable of suppressing the manufacturing cost and which can be easily processed for preparing a bonded body.
A light absorbing layer which is bonded to a laser medium to configure a bonded body, wherein the light absorbing layer is formed from a glass material and, in an oscillation wavelength of wavelength of 650 nm or more and less than 1400 nm of the laser medium, an absorption coefficient is 0.1 to 10.0 cm−1, a difference in refractive index between the light absorbing layer and the laser medium is within ±0.1, a difference in linear thermal expansion coefficient between the light absorbing layer and the laser medium is within ±1 ppm/K, the laser medium is one type among Nd:
A bonded body comprising a light absorbing layer bonded to and integrated with a laser medium, wherein the light absorbing layer is formed from a glass material and, in an oscillation wavelength of wavelength of 650 nm or more and less than 1400 nm of the laser medium, an absorption coefficient is 0.1 to 10.0 cm−1, a difference in refractive index between the light absorbing layer and the laser medium is within ±0.1, and a difference in linear thermal expansion coefficient between the light absorbing layer and the laser medium is within ±1 ppm/K, wherein the laser medium is Nd:
Dependencies are inferred from the claim text.