CN201289959Y - Narrow longitudinal mode line width solid-state laser - Google Patents
Narrow longitudinal mode line width solid-state laser Download PDFInfo
- Publication number
- CN201289959Y CN201289959Y CNU2008201610226U CN200820161022U CN201289959Y CN 201289959 Y CN201289959 Y CN 201289959Y CN U2008201610226 U CNU2008201610226 U CN U2008201610226U CN 200820161022 U CN200820161022 U CN 200820161022U CN 201289959 Y CN201289959 Y CN 201289959Y
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- bragg grating
- state laser
- fiber
- laser
- solid state
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Abstract
The utility model discloses a solid laser, in particular to a solid laser with narrow line width of longitudinal mode. The solid laser comprises a laser driver and a solid laser which are connected with each other, and a set of optical-fiber systems written with Bragg grating is connected on the solid laser. The optical-fiber systems written with Bragg grating can adopt single mode fiber and also can adopt multimode optical fiber; the optical-fiber systems written with Bragg grating comprise at least one grating, and comprises a lens system and optical fibers written with Bragg grating; the lens system comprises at least one lens; the optical-fiber system written with Bragg grating can also be made up of an optical-fiber lens and optical fibers written with Bragg grating. The laser of the single longitudinal mode produced by the solid laser and the external cavity of the fiber Bragg grating has narrow spectrum and high side-mode suppression ratio, the method is very simple and effective, and the cost is low.
Description
Technical field
The utility model relates to a kind of solid state laser, especially a kind of solid state laser of narrow longitudinal mode live width.
Background technology
Solid state laser has exquisite small and exquisite efficient advantages of higher with respect to the laser of other types.The single-vertical mode solid state laser has very important use at aspects such as instrument and equipment, transducer, biomedical instrument, metrical instrument and communications.In order to obtain the laser of single Transverse mode, there has been certain methods to constrain the high-order Transverse mode.
United States Patent (USP) 6,625,182, disclosed laser system, a solid laser medium is provided as the waveguide of horizontal various modes and obtains bulk of optical feedback from body grating and constrains the high-order Transverse mode, swashs in the output at height and has only basic zero level Transverse mode.
In case single Transverse mode laser output becomes a reality, the solid state laser Study on Technology of narrow longitudinal mode live width becomes very important.That need obtain the laser of the single-vertical mode of narrow linewidth and high side mode suppression ratio, and spectrum narrows down and the key issue that has been chosen to single longitudinal mode laser of laser system pattern.Someone is used as the live width that external cavity mirror reduces laser spectroscopy by the body grating with the optics temperature-sensitive.
Te-yuan chung, the bragg grating of the refractive index type that human thermo-sensitive materials such as Alexandra Rapaport constitute narrows down the spectrum of solid state laser.(Te-yuan Chung, Alexandra Rapaport, Vadim Smirnov, Leonid B.Glebov, Martin C.Richardson, and Michael Bass, Solid-state laser spectral narrowing using a volumetric photothermal refractive Bragggrating cavity mirror, Optics Letters 2006 Vol.31, No.2,229-231). this mode complexity and cost height.
Summary of the invention
Technical problem to be solved in the utility model provides the solid state laser of the simple and narrow longitudinal mode live width that cost is low of a kind of implementation.
For solving the problems of the technologies described above, the solid state laser of the narrow longitudinal mode live width that the utility model provides comprises laser driver connected to one another, solid state laser, also is connected with the fibre system of a cover with Bragg grating on the solid state laser.
Fibre system with Bragg grating can be a monomode fiber, also can be multimode fiber.
Fibre system with Bragg grating has a grating at least.
Fibre system with Bragg grating is formed by lens combination with the optical fiber of Bragg grating.Lens combination has lens at least.
Also can be optical fiber lens and constitute with the fibre system of Bragg grating with the optical fiber of Bragg grating.
Beneficial effect: the solid state laser of the narrow longitudinal mode live width that the utility model provides, comprise on driver, solid state laser and the optical fiber with Bragg grating as exocoel, the Bragg grating exocoel has been selected solid state laser single longitudinal mode laser wavelength and has been suppressed other longitudinal mode laser wavelength, the laser of the single longitudinal mode that solid state laser and Fiber Bragg Grating FBG exocoel produce has narrow spectrum and high side mode suppression ratio, this mode is very simple and effective, and with low cost.
Description of drawings
Fig. 1 is first kind of structural representation of the present utility model;
Fig. 2 is second kind of structural representation of the present utility model;
The spectrum that Fig. 3 exports for the conventional solid state laser that does not have Fiber Bragg Grating FBG;
Fig. 4 is the spectrum of solid state laser output of the present utility model
Among the figure: 1-laser driver, 2-solid state laser, 3-optical lens system, 4-optical fiber, 5-Bragg grating, 6-optical fiber lens
Embodiment
Below in conjunction with accompanying drawing particular content of the present utility model is described further.
Shown in Fig. 1-2, the solid state laser of narrow longitudinal mode live width comprises laser driver 1 connected to one another, solid state laser 2, also is connected with the fibre system of a cover with Bragg grating on the solid state laser.
Fibre system with Bragg grating is a monomode fiber, also can be multimode fiber.
Fibre system with Bragg grating has a Bragg grating 5 at least.
Fibre system with Bragg grating is formed by lens combination with the optical fiber 4 of Bragg grating 5.Lens combination has lens 3 at least.
As shown in Figure 2, also can be optical fiber lens 6 and constitute with the fibre system of Bragg grating with the optical fiber 4 of Bragg grating 5.
Fiber end face and laser near Bragg grating 5 directly are coupled.Have Bragg grating 5 optical fiber lens 6 end face directly and the optical coupling of solid state laser 2.Optical Maser System can also use the Bragg grating 5 of different cycles, different reflectivity and different full bandwidths.
Optical fiber another end face output, can connect the spectrum of measuring output light with the analysis instruments such as spectrometer in the external world.
The solid state laser that does not have the fiber device of Bragg grating is exported multiple longitudinal mode laser as shown in Figure 3.And the Bragg grating exocoel has been selected solid state laser single longitudinal mode laser wavelength, and other longitudinal mode laser wavelength have been suppressed, as shown in Figure 4, the laser of the single longitudinal mode that solid state laser and Fiber Bragg Grating FBG exocoel produce has narrow spectrum and high side mode suppression ratio, and implementation is simple and cost is low.
Claims (6)
1, a kind of solid state laser of narrow longitudinal mode live width comprises laser driver connected to one another, solid state laser, it is characterized in that: also be connected with the fibre system of a cover with Bragg grating on the solid state laser.
2, the solid state laser of narrow longitudinal mode live width according to claim 1 is characterized in that: the fibre system with Bragg grating can be a monomode fiber, also can be multimode fiber.
3, the solid state laser of narrow longitudinal mode live width according to claim 1 is characterized in that: the fibre system with Bragg grating has a grating at least.
4, the solid state laser of narrow longitudinal mode live width according to claim 1 is characterized in that: the fibre system with Bragg grating is formed by lens combination with the optical fiber of Bragg grating.
5, the solid state laser of narrow longitudinal mode live width according to claim 4 is characterized in that: lens combination has lens at least.
6, the solid state laser of narrow longitudinal mode live width according to claim 1 is characterized in that: can be optical fiber lens and constitute with the optical fiber of Bragg grating with the fibre system of Bragg grating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201610226U CN201289959Y (en) | 2008-11-07 | 2008-11-07 | Narrow longitudinal mode line width solid-state laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201610226U CN201289959Y (en) | 2008-11-07 | 2008-11-07 | Narrow longitudinal mode line width solid-state laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201289959Y true CN201289959Y (en) | 2009-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201610226U Expired - Fee Related CN201289959Y (en) | 2008-11-07 | 2008-11-07 | Narrow longitudinal mode line width solid-state laser |
Country Status (1)
| Country | Link |
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| CN (1) | CN201289959Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110957637A (en) * | 2014-12-10 | 2020-04-03 | 特拉迪欧德公司 | Optical cross-coupling suppression system for wavelength beam combining laser system |
-
2008
- 2008-11-07 CN CNU2008201610226U patent/CN201289959Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110957637A (en) * | 2014-12-10 | 2020-04-03 | 特拉迪欧德公司 | Optical cross-coupling suppression system for wavelength beam combining laser system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090812 Termination date: 20101107 |