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Laser light emitting device having a mode scrambler for unifying light intensity distribution
US9709676B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9709676-B2 |
| Application number | US-201514813399-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 30, 2015 |
| Priority date | Jul 31, 2014 |
| Publication date | Jul 18, 2017 |
| Grant date | Jul 18, 2017 |
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- Title
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Abstract
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The invention provides a laser light emitting device, which comprises a laser light emitter for emitting a pump light, a resonator for emitting a laser beam by oscillating and amplifying the pump light and a multi-mode fiber for guiding the pump light emitted from the laser light emitter to the resonator, wherein a mode scrambler is provided on the multi-mode fiber, the pump light propagating the multi-mode fiber is stirred and a light intensity distribution is unified by the mode scrambler, and the pump light is entered to the resonator.
First claim
Opening claim text (preview).
The invention claimed is: 1. A laser light emitting device, comprising a laser light emitter for emitting a pump light, an optical cavity for emitting a laser beam by oscillating and amplifying the pump light and a multi-mode fiber for guiding the pump light emitted from said laser light emitter to said optical cavity, wherein a mode scrambler is provided on said multi-mode fiber, the pump light propagating said multi-mode fiber is stirred and a light intensity distribution is unified by said mode scrambler, and the pump light is entered to said optical cavity. 2. A laser light emitting device according to claim 1 , wherein said mode scrambler is provided at an emitting end of said multi-mode fiber. 3. A laser surveying instrument which projects a laser beam to an object to be measured and performs distance measurement by receiving a reflection light from said object to be measured, comprising said laser light emitting device according to claim 1 as a light emitting source of said laser beam.
Assignees
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Classifications
- H01S3/0941Primary
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- What does patent US9709676B2 cover?
- The invention provides a laser light emitting device, which comprises a laser light emitter for emitting a pump light, a resonator for emitting a laser beam by oscillating and amplifying the pump light and a multi-mode fiber for guiding the pump light emitted from the laser light emitter to the resonator, wherein a mode scrambler is provided on the multi-mode fiber, the pump light propagating t…
- Who is the assignee on this patent?
- Kk Topcon
- What technology area does this patent fall under?
- Primary CPC classification H01S3/0941. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jul 18 2017 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).