Saturable absorbers for q-switching of middle infrared laser cavities
US-2016294151-A1 · Oct 6, 2016 · US
Saturable absorbers for Q-switching of middle infrared laser cavities
US10027085B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10027085-B2 |
| Application number | US-201615182384-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 14, 2016 |
| Priority date | Sep 20, 2001 |
| Publication date | Jul 17, 2018 |
| Grant date | Jul 17, 2018 |
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Abstract
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A Q-switched laser includes a laser cavity including a cavity mirror and an output coupler mirror. The Q-switched laser also includes a doped laser gain material disposed in the laser cavity and a Q-switch including a saturable absorber comprising Fe 2+ :ZnSe or Fe 2+ :ZnS.
First claim
Opening claim text (preview).
What is claimed is: 1. A Q-switched laser comprising: a laser cavity including a cavity mirror and an output coupler mirror; an erbium doped laser gain material in the laser cavity to produce laser light at a laser wavelength around 3 μm under optical pumping; and a Q-switch including a saturable absorber comprising Fe 2+ :ZnSe or Fe 2+ :ZnS. 2. The Q-switched laser of claim 1 wherein the Q-switched laser is operable to lase at a wavelength ranging from 2.5 μm to 4.0 μm. 3. The Q-switched laser of claim 2 wherein the Q-switched laser is operable to lase at a wavelength ranging from 2.5 μm to 3.4 μm. 4. The Q-switched laser of claim 1 wherein the Fe 2+ :ZnSe or Fe 2+ :ZnS is single crystalline. 5. The Q-switched laser of claim 1 wherein the Fe 2+ :ZnSe or Fe 2+ :ZnS is polycrystalline. 6. The Q-switched laser of claim 1 wherein the saturable absorber is placed at Brewster's angle. 7. The Q-switched laser of claim 1 wherein the Q-switch is disposed between the cavity mirror and the doped laser gain material. 8. The Q-switched laser of claim 1 wherein the saturable absorber comprises a passive solid state saturable absorber. 9. The Q-switched laser of claim 1 wherein the erbium doped laser gain material comprises Er:YAG. 10. A Q-switched laser comprising: a laser cavity defined by a first cavity mirror and a second cavity mirror; an output coupler disposed in the laser cavity; an erbium doped laser gain material disposed between the first cavity mirror and the output coupler to produce laser light at a laser wavelength around 3 μm under optical pumping; and a Q-switch including a saturable absorber comprising Fe 2+ :ZnSe or Fe 2+ :ZnS. 11. The Q-switched laser of claim 10 wherein the Q-switched laser is operable to lase at a wavelength ranging from 2.5 μm to 4.0 μm. 12. The Q-switched laser of claim 11 wherein the the Q-switched laser is operable to lase at a wavelength ranging from 2.5 μm to 3.4 μm. 13. The Q-switched laser of claim 10 wherein the Fe 2+ :ZnSe or Fe 2+ :ZnS is single crystalline. 14. The Q-switched laser of claim 10 wherein the Fe 2+ :ZnSe or Fe 2+ :ZnS is polycrystalline. 15. The Q-switched laser of claim 10 wherein the saturable absorber is placed at Brewster's angle. 16. The Q-switched laser of claim 10 wherein the Q-switch is disposed between the output coupler and the second cavity mirror. 17. The Q-switched laser of claim 10 wherein the saturable absorber comprises a passive solid state saturable absorber. 18. The Q-switched laser of claim 10 wherein the erbium doped laser gain material comprises Er:YAG.
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Functional characteristics · CPC title
rare earth · CPC title
transition metal · CPC title
garnet · CPC title
erbium · CPC title
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- What does patent US10027085B2 cover?
- A Q-switched laser includes a laser cavity including a cavity mirror and an output coupler mirror. The Q-switched laser also includes a doped laser gain material disposed in the laser cavity and a Q-switch including a saturable absorber comprising Fe 2+ :ZnSe or Fe 2+ :ZnS.
- Who is the assignee on this patent?
- Uab Res Found
- What technology area does this patent fall under?
- Primary CPC classification H01S3/11. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jul 17 2018 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).