CN202749674U - Seed injection Q-switched single-frequency optical fiber laser - Google Patents
Seed injection Q-switched single-frequency optical fiber laser Download PDFInfo
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- CN202749674U CN202749674U CN201220454461.2U CN201220454461U CN202749674U CN 202749674 U CN202749674 U CN 202749674U CN 201220454461 U CN201220454461 U CN 201220454461U CN 202749674 U CN202749674 U CN 202749674U
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- optical fiber
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Abstract
The utility model relates to an optical fiber laser, and particularly relates to a seed injection Q-switched single-frequency optical fiber laser obtaining single-frequency laser output. The utility model is characterized in that an output tail fiber of the single-frequency seed laser is connected to an input port of an optical fiber coupler, an output optical fiber port of the optical fiber coupler and a pump semiconductor laser are connected to a signal input port of an optical fiber combiner, an output port of the optical fiber combiner is connected to an input end of an optical fiber isolator through a gain optical fiber, an output end of the optical fiber isolator is connected to a Q-switched optical switch, the other end of the Q-switched optical switch is connected to an optical fiber band-pass filter, the other end of the optical fiber band-pass filter is connected to an input end of the optical fiber coupler, and an output end of the optical fiber coupler is connected to an output optical fiber. The seed injection Q-switched single-frequency optical fiber laser has the following advantages: first, effects such as space hole burning and like are avoided effectively; second, relatively high power output can be acquired by using a relatively long gain optical fiber; and third, regulation on the wavelength of the Q-switched single-frequency optical fiber laser with a ring cavity is realized through regulating the wavelength of the single-frequency seed laser.
Description
Technical field
The utility model relates to a kind of fiber laser, and especially a kind of seed that obtains single-frequency laser output injects transfers the Q single frequency optical fiber laser.
Background technology
Fiber laser is the laser take the optical fiber of doped with rare-earth elements as gain media, by the different rare earth element that mixes, such as bait (Er), an an ancient unit of weight equal to 20 or 24 *taels of silver (Yb), thulium (Tm), holmium (Ho), neodymium (Nd) etc., the service band of fiber laser covered from ultraviolet to infrared.Compare with other lasers, it is low that fiber laser has the laser work threshold value, energy transformation ratio is high, output beam quality is good, compact conformation, working stability, need not the distinguishing features such as light path adjustment, perfect heat-dissipating, long service life and Maintenance free, therefore is rapidly developed and uses widely.
SF pulse optical fibre laser except possessing the general advantage of fiber laser, can provide narrow linewidth simultaneously, high-peak power, and these characteristics make it be widely used in the fields such as sensing, radar, spectroscopy, nonlinear optics.The pure-tone pulse laser realizes by building very short (several centimetres) laser cavity usually, but usually because gain fibre that the power that (gain that provides is less) obtain relatively is provided is not high, and linear cavity has the effect such as spatial hole burning and affects laser performance.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of method of injecting by seed to obtain the fiber laser of single-frequency laser output.
The utility model can reach by following measure.
A kind of seed injects transfers the Q single frequency optical fiber laser, comprise the single-frequency seed laser, fiber coupler (coupler), optical-fiber bundling device (Combiner or WDM), the pumping semiconductor laser, gain fibre, fibre optic isolater, transfer the Q optical switch, band pass filter, fiber coupler (coupler) and output optical fibre, the output tail optical fiber that it is characterized in that the single-frequency seed laser is connected in the fiber coupler input port, the output optical fibre port of fiber coupler is connected the signal input port of optical-fiber bundling device with the pumping semiconductor laser, the optical-fiber bundling device output port is connected with the fibre optic isolater input through gain fibre, the fibre optic isolater output is connected with transferring the Q optical switch, transfer the Q optical switch other end to be connected with a fiber band-pass filter, the band pass filter other end is connected in the fiber coupler input, and the fiber coupler output is connected with output optical fibre.
The utility model is to inject a seed laser in common circular cavity optic fibre laser the inside by fiber coupler, the injecting power of single-frequency seed laser and pumping semiconductor laser, single-frequency, stable, narrow linewidth are complementary, to realize that seed laser is to the induction of laser output mode.
The utility model induces laser cavity in the place's starting of oscillation of the single-frequency pattern place of the seed laser that injects by the injection of seed single frequency laser, has realized the single-frequency of longer laser annular chamber, narrow-linewidth laser output.
The utility model fibre can be single cladded fiber, also can be doubly clad optical fiber, can be any rare-earth doped optical fibre (Yb, Er, Tm, Ho, Nd, etc.), also can be multiple rare earth co-doped fiber (Er/Yb, Tm/Ho, etc.).
The utility model is various forms of optical switches, comprises acousto-optic modulator, electrooptic modulator, magneto optical modulator etc.
The utlity model has following advantage: the one, can adopt the long relatively long ring cavity structure in chamber to realize single-frequency laser pulse output, effectively avoid the effects such as spatial hole burning; The 2nd, need not obtain single-frequency laser pulse output by control laser cavity length, can obtain relatively high power stage with relatively long gain fibre; The 3rd, can pass through to regulate the wavelength realization of single-frequency seed laser to the adjusting of circular chamber regulating Q single frequency optical fiber laser wavelength.
Description of drawings
Accompanying drawing 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As shown in the figure, a kind of seed injects transfers the Q single frequency optical fiber laser, comprise single-frequency seed laser 1, fiber coupler (coupler) 2, optical-fiber bundling device (Combiner or WDM) 3, pumping semiconductor laser 4, gain fibre 5, fibre optic isolater 6, transfer Q optical switch 7, band pass filter 8, fiber coupler (coupler) 9 and output optical fibre 10, the structure of above-mentioned each part is same as the prior art, this does not give unnecessary details, the utility model gain fibre 5 can be single cladded fiber, it also can be doubly clad optical fiber, can be any rare-earth doped optical fibre (Yb, Er, Tm, Ho, Nd, Deng), also can be multiple rare earth co-doped fiber (Er/Yb, Tm/Ho, Deng), transferring Q optical switch 7 can be various forms of optical switches, comprise acousto-optic modulator, electrooptic modulator, magneto optical modulator etc., the output tail optical fiber of single-frequency seed laser 1 that is characterised in that of the present utility model is connected in fiber coupler 2 input ports, the output optical fibre port of fiber coupler 2 is connected the signal input port that connects optical-fiber bundling device 3 with the pumping semiconductor laser, optical-fiber bundling device 3 output ports are connected with fibre optic isolater 6 inputs through gain fibre 5, fibre optic isolater 6 outputs are connected with transferring Q optical switch 7, transfer Q optical switch 7 other ends to be connected with a fiber band-pass filter 8, band pass filter 8 other ends are connected in fiber coupler 9 inputs, fiber coupler 9 outputs are connected with output optical fibre 10, the utility model is to inject a seed laser in common circular cavity optic fibre laser the inside by fiber coupler, the injecting power of single-frequency seed laser and pumping semiconductor laser, single-frequency, stable, narrow linewidth is complementary, to realize that seed laser is to the induction of laser output mode.
The utility model induces laser cavity in the place's starting of oscillation of the single-frequency pattern place of the seed laser that injects by the injection of seed single frequency laser, has realized the single-frequency of longer laser annular chamber, narrow-linewidth laser output.
The utility model fibre can be single cladded fiber, also can be doubly clad optical fiber, can be any rare-earth doped optical fibre (Yb, Er, Tm, Ho, Nd, etc.), also can be multiple rare earth co-doped fiber (Er/Yb, Tm/Ho, etc.).
The utility model is various forms of optical switches, comprises acousto-optic modulator, electrooptic modulator, magneto optical modulator etc.
The utlity model has following advantage: the one, can adopt the long relatively long ring cavity structure in chamber to realize single-frequency laser pulse output, effectively avoid the effects such as spatial hole burning; The 2nd, need not obtain single-frequency laser pulse output by control laser cavity length, can obtain relatively high power stage with relatively long gain fibre; The 3rd, can pass through to regulate the wavelength realization of single-frequency seed laser to the adjusting of circular chamber regulating Q single frequency optical fiber laser wavelength.
Claims (3)
1. a seed injects and transfers the Q single frequency optical fiber laser, comprise the single-frequency seed laser, fiber coupler, optical-fiber bundling device, the pumping semiconductor laser, gain fibre, fibre optic isolater, transfer the Q optical switch, band pass filter, fiber coupler and output optical fibre, the output tail optical fiber that it is characterized in that the single-frequency seed laser is connected in the fiber coupler input port, the output optical fibre port of fiber coupler is connected the signal input port of optical-fiber bundling device with the pumping semiconductor laser, the optical-fiber bundling device output port is connected with the fibre optic isolater input through gain fibre, the fibre optic isolater output is connected with transferring the Q optical switch, transfer the Q optical switch other end to be connected with a fiber band-pass filter, the band pass filter other end is connected in the fiber coupler input, and the fiber coupler output is connected with output optical fibre.
2. a kind of seed according to claim 1 injects and transfers the Q single frequency optical fiber laser, it is characterized in that gain fibre is single cladded fiber.
3. a kind of seed according to claim 1 injects and transfers the Q single frequency optical fiber laser, it is characterized in that gain fibre is doubly clad optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220454461.2U CN202749674U (en) | 2012-09-07 | 2012-09-07 | Seed injection Q-switched single-frequency optical fiber laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220454461.2U CN202749674U (en) | 2012-09-07 | 2012-09-07 | Seed injection Q-switched single-frequency optical fiber laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202749674U true CN202749674U (en) | 2013-02-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220454461.2U Expired - Lifetime CN202749674U (en) | 2012-09-07 | 2012-09-07 | Seed injection Q-switched single-frequency optical fiber laser |
Country Status (1)
| Country | Link |
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| CN (1) | CN202749674U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102856781A (en) * | 2012-09-07 | 2013-01-02 | 山东海富光子科技股份有限公司 | Seed injecting Q-switching single-frequency fiber laser |
| CN106129791A (en) * | 2016-09-07 | 2016-11-16 | 电子科技大学 | The Gao Zhongying Harmonic mode-locked fiber laser injected based on outside continuous light |
| CN107482432A (en) * | 2017-08-16 | 2017-12-15 | 中国科学院上海光学精密机械研究所 | Annular multi-pass laser amplification device |
-
2012
- 2012-09-07 CN CN201220454461.2U patent/CN202749674U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102856781A (en) * | 2012-09-07 | 2013-01-02 | 山东海富光子科技股份有限公司 | Seed injecting Q-switching single-frequency fiber laser |
| CN106129791A (en) * | 2016-09-07 | 2016-11-16 | 电子科技大学 | The Gao Zhongying Harmonic mode-locked fiber laser injected based on outside continuous light |
| CN106129791B (en) * | 2016-09-07 | 2019-10-18 | 电子科技大学 | Gao Zhongying Harmonic mode-locked fiber laser based on external continuous light injection |
| CN107482432A (en) * | 2017-08-16 | 2017-12-15 | 中国科学院上海光学精密机械研究所 | Annular multi-pass laser amplification device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Seed injecting Q-switching single-frequency fiber laser Effective date of registration: 20140829 Granted publication date: 20130220 Pledgee: Weihai commercial bank Limited by Share Ltd. Pledgor: HFB Photonics Co.,Ltd. Registration number: 2014990000717 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20180326 Granted publication date: 20130220 Pledgee: Weihai commercial bank Limited by Share Ltd. Pledgor: HFB Photonics Co.,Ltd. Registration number: 2014990000717 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Seed injecting Q-switching single-frequency fiber laser Effective date of registration: 20180326 Granted publication date: 20130220 Pledgee: Weihai City Commercial Bank Limited by Share Ltd. high tech branch Pledgor: HFB Photonics Co.,Ltd. Registration number: 2018990000227 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20211014 Granted publication date: 20130220 Pledgee: Weihai City Commercial Bank Limited by Share Ltd. high tech branch Pledgor: HFB Photonics Co.,Ltd. Registration number: 2018990000227 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130220 |
|
| CX01 | Expiry of patent term |