Stable, narrow spectral linewidth, fiber-delivered laser source for spin exchange optical pumping
US-2017199389-A1 · Jul 13, 2017 · US
External resonator-type semiconductor laser device
US12155177B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12155177-B2 |
| Application number | US-201917265983-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 31, 2019 |
| Priority date | Aug 8, 2018 |
| Publication date | Nov 26, 2024 |
| Grant date | Nov 26, 2024 |
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- Title
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Abstract
Official abstract text for this publication.
An external resonator-type semiconductor laser device 1 A includes an external resonator formed of one or a plurality of laser diode light sources and a VBG; an optical fiber which outputs output light La from the laser diode light source toward the VBG, and into which return light Lb from the VBG is input; and a displacement unit that displaces a disposition position of the VBG with respect to an input and output end surface of the optical fiber.
First claim
Opening claim text (preview).
The invention claimed is: 1. An external resonator-type semiconductor laser device comprising: an external resonator formed of one or a plurality of laser diode light sources and a VBG; an optical fiber configured to output an output light from the laser diode light source toward the VBG, and to input a return light from the VBG; and a displacement unit configured to displace a disposition position of the VBG with respect to an input and output end surface of the output light and the return light in the optical fiber. 2. The external resonator-type semiconductor laser device according to claim 1 , wherein the displacement unit displaces the VBG in a direction along an optical axis of the output light. 3. The external resonator-type semiconductor laser device according to claim 2 , wherein a condensing lens is disposed between the input and output end surface of the optical fiber and the VBG. 4. The external resonator-type semiconductor laser device according to claim 1 , wherein a collimating lens is disposed between the input and output end surface of the optical fiber and the VBG, and the displacement unit displaces the VBG in a direction intersecting an optical axis of the output light.
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Classifications
Single longitudinal mode emission · CPC title
one of the reflectors being constituted by a diffraction grating · CPC title
Combinations of electrical or optical elements · CPC title
Beam combining, e.g. by the use of fibres, gratings, polarisers, prisms · CPC title
- H01S5/141Primary
using a wavelength selective device, e.g. a grating or etalon (H01S5/146 takes precedence) · CPC title
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- What does patent US12155177B2 cover?
- An external resonator-type semiconductor laser device 1 A includes an external resonator formed of one or a plurality of laser diode light sources and a VBG; an optical fiber which outputs output light La from the laser diode light source toward the VBG, and into which return light Lb from the VBG is input; and a displacement unit that displaces a disposition position of the VBG with respect t…
- Who is the assignee on this patent?
- Hamamatsu Photonics Kk
- What technology area does this patent fall under?
- Primary CPC classification H01S5/141. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 26 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).