CN104836106A - Miniature solid mode locked laser - Google Patents
Miniature solid mode locked laser Download PDFInfo
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- CN104836106A CN104836106A CN201510309074.8A CN201510309074A CN104836106A CN 104836106 A CN104836106 A CN 104836106A CN 201510309074 A CN201510309074 A CN 201510309074A CN 104836106 A CN104836106 A CN 104836106A
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Abstract
The invention relates to the short pulse laser field; a rectangular prism combination is employed in a chamber; a multi-reflection method between rectangular prism pairs can enlarge a physics chamber length of a laser chamber; a full reflection surface of the rectangular prism is plated with a chirp mirror reflection film so as to generate chamber inner element dispersion compensation effect; in addition, a semiconductor saturable absorber serves as a front chamber mirror or a rear chamber mirror of a standing-wave chamber, thus realizing the full solid miniature mode locked laser, and realizing burst pulse or ultrashort pulse output with a high peak power a narrow pulse width; in addition, each optical element in the laser chamber can form an integrated body through optical cement or deepening optical cement.
Description
Technical field
This patent is the patent of invention relating to short-pulse laser field, particularly relates to a kind of miniaturized solid mode-locked laser.
Background technology
Ultrashort pulse has the pulse duration of psec, femtosecond magnitude, high pulse repetition frequency, wide spectrum and high peak power, at physics, biology, OCT, laser spectroscopy, optical communication and Laser focus, the various fields tools such as nonlinear frequency transformation have been widely used.
Concerning laser, if do not add any model selection device in laserresonator, so the output spectral line of laser is by many discrete, is made up of the horizontal frequency spectrum determined of transverse and longitudinal.Laser transition live width is limited in some the number of the oscillation mode with enough large gain.The light only having the gain of those laser mediums to exceed the wavelength of the loss of resonator just forms laser emission.In free running laser, simultaneously longitudinal mode and transverse mode vibrate under without any fixing amplitude and phase relation, and the output of this laser is temporally average statistics mean value.In general resonant cavity, the gain longitudinal mode be greater than in loss of resonator frequency range being in laser medium has hundreds of.In frequency domain category, the spectral line that laser emission is C/2L by many longitudinal mode spacings forms.These moulds mutually irrelevantly vibrate, and its phase place is distributed between a π to ten π randomly.The similar thermal noise of its time domain output characteristic.But if force oscillation mode phase relation each other to keep fixing, so Laser output will with completely specified variation.Now, we say that laser is locked mode or phase-locked.
Therefore mode-locked laser is the important direction of a certainty of laser developments.But it requires that longer chamber length is to obtain more multimodal locking, so the mode-locked laser of microchip seems impossible, but practical device requires that again miniaturized efficiency is high.And this patent propose realize by right-angle prism this feature that multipass end pump solid mode-locked laser has just in time catered to mode-locked laser application development.And though fiber laser will simplify practicality more than solid state laser, there is not mode locked fiber laser to adopt all optical fibre structure so far, and do not need artificially to regulate and self-starting.And each optical element in this patent in laser cavity can be single entirety by optical cement or in-depth optical cement gummed, device is made to exempt to regulate, so the proposition of this patent is necessary.
Summary of the invention
This patent overcomes the deficiencies in the prior art, provides a kind of miniaturized solid mode-locked laser.
To achieve these goals, this patent adopts following technical scheme:
Employing right-angle prism combines, by right-angle prism between the mode of multiple reflections to increase the physics chamber of laser cavity long, and be coated with chirped mirror reflectance coating on the fully reflecting surface of right-angle prism, play element dispersion compensation functions in chamber; Simultaneously, this patent using semiconductor saturable absorber as the front cavity mirror of laser or Effect of Back-Cavity Mirror, and each optical element in this laser device laser chamber can be single entirety by optical cement or in-depth optical cement gummed, and then realizing complete solid miniaturized mode-locked laser, the short pulse or the ultrashort pulse that obtain high-peak power narrow spaces export.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention one structural representation;
Fig. 2 is embodiment of the present invention two structural representation;
Fig. 3 is embodiment of the present invention three structural representation.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated:
Execution mode one: single unit system as shown in Figure 1, the light of pumping source 101 outgoing is through condenser lens 102, laser crystal 104 is incided again through speculum 103,105 is semiconductor saturable absorbing mirror, be coated with the high-reflecting film of Output of laser as front cavity mirror, laser enters right-angle prism to 106 and 107 after semiconductor saturable absorber, roundtrip between two right-angle prisms, realize the increase that chamber is long, as figure, there is the relative changing of the relative positions two right-angle prism positions, finally pass through Effect of Back-Cavity Mirror 108 Output of laser by right-angle prism 106 outgoing.The right-angle side face that wherein right-angle prism is right is also coated with rete of warbling, the dispersion compensation functions of element in chamber can have been played.
Execution mode two: single unit system as shown in Figure 2, the light of pumping source 201 outgoing is through condenser lens 202, laser crystal 204 is incided again through speculum 203, the end face of laser crystal is coated with pump light high-reflecting film and Output of laser anti-reflection film Effect of Back-Cavity Mirror, pump light enters right-angle prism to 205 and 206 by after 204 reflections, roundtrip between two right-angle prisms, 207 is semiconductor saturable absorbing mirror, be coated with the high-reflecting film of Output of laser as front cavity mirror, laser returns through semiconductor saturable absorbing mirror Hou Yuan road and exports from laser crystal end face.
Execution mode three: single unit system as shown in Figure 3, compared with execution mode two, single unit system is arranged on the same line, the light of pumping source 301 outgoing is through condenser lens 302, focus on laser crystal 304, the end face of laser crystal is coated with pump light high-reflecting film and Output of laser anti-reflection film as resonant cavity Effect of Back-Cavity Mirror, enter right-angle prism to 305 and 306, roundtrip between two right-angle prisms, 307 is semiconductor saturable absorbing mirror, be coated with the high-reflecting film of Output of laser as front cavity mirror, laser returns through semiconductor saturable absorbing mirror Hou Yuan road and exports from speculum 303.
Although specifically show in conjunction with preferred embodiment and describe this patent; but those skilled in the art should be understood that; in the spirit and scope not departing from this patent that appended claims limits; can make a variety of changes this patent in the form and details, be the protection range of this patent.
Claims (4)
1. a miniaturized solid mode-locked laser, comprising: pumping source (101), condenser lens (102), speculum (103), laser crystal (104), semiconductor saturable absorbing mirror (105), right-angle prism are to (106), (107) and Effect of Back-Cavity Mirror (108); It is characterized in that: adopt right-angle prism to the combination of (106), by the multiple reflections of laser between right-angle prism, the physics chamber increasing laser cavity is long, and is coated with chirped mirror reflectance coating on the fully reflecting surface of right-angle prism, plays element dispersion compensation functions in chamber; Simultaneously using semiconductor saturable absorbing mirror (105) as a front cavity mirror of standing-wave cavity or Effect of Back-Cavity Mirror, and then realize complete solid miniaturized mode-locked laser.
2. the miniaturized solid mode-locked laser of one according to claim 1, is characterized in that: on semiconductor saturable absorbing mirror (105), be coated with corresponding membrane system, makes its front cavity mirror as laser cavity or Effect of Back-Cavity Mirror.
3. the miniaturized solid mode-locked laser of one according to claim 1, is characterized in that: the mode adopting end pumping, improves pumping efficiency.
4. the miniaturized solid mode-locked laser of one according to claim 1, is characterized in that: each optical element in laser cavity can be single entirety by optical cement or in-depth optical cement gummed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510309074.8A CN104836106A (en) | 2015-06-09 | 2015-06-09 | Miniature solid mode locked laser |
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| CN201510309074.8A CN104836106A (en) | 2015-06-09 | 2015-06-09 | Miniature solid mode locked laser |
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| CN104836106A true CN104836106A (en) | 2015-08-12 |
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| CN201510309074.8A Pending CN104836106A (en) | 2015-06-09 | 2015-06-09 | Miniature solid mode locked laser |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975241A (en) * | 2019-02-27 | 2019-07-05 | 哈尔滨工业大学 | A kind of corner reflection enhancing optoacoustic spectroscopy formula trace gas detection device and method |
| CN110600979A (en) * | 2019-08-31 | 2019-12-20 | 湖北久之洋红外系统股份有限公司 | Pyramid prism folding cavity laser |
| CN110649453A (en) * | 2019-08-31 | 2020-01-03 | 湖北久之洋红外系统股份有限公司 | Right-angle prism folding cavity laser |
| CN112018589A (en) * | 2019-05-28 | 2020-12-01 | 天津凯普林激光科技有限公司 | Laser amplification device and laser amplification method |
Citations (6)
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| DE4004071A1 (en) * | 1990-02-08 | 1991-08-14 | Festkoerper Laser Inst Berlin | Solid state laser resonator - has laser beam releasable through partially reflective element, integral with prisms or through triple mirror |
| DE4304178A1 (en) * | 1993-02-12 | 1994-08-18 | Deutsche Aerospace | Active, folded resonator system |
| CN2786836Y (en) * | 2005-04-05 | 2006-06-07 | 吴砺 | Round cavity laser |
| CN101950115A (en) * | 2010-09-01 | 2011-01-19 | 天津大学 | Multi-way pulse compressor and using method thereof |
| CN103066488A (en) * | 2012-12-29 | 2013-04-24 | 深圳大学 | Multipass amplification system of ultrashort pulse laser |
| CN104201555A (en) * | 2014-09-18 | 2014-12-10 | 福建福晶科技股份有限公司 | Polarization insensitive electro-optic Q switch |
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2015
- 2015-06-09 CN CN201510309074.8A patent/CN104836106A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4004071A1 (en) * | 1990-02-08 | 1991-08-14 | Festkoerper Laser Inst Berlin | Solid state laser resonator - has laser beam releasable through partially reflective element, integral with prisms or through triple mirror |
| DE4304178A1 (en) * | 1993-02-12 | 1994-08-18 | Deutsche Aerospace | Active, folded resonator system |
| CN2786836Y (en) * | 2005-04-05 | 2006-06-07 | 吴砺 | Round cavity laser |
| CN101950115A (en) * | 2010-09-01 | 2011-01-19 | 天津大学 | Multi-way pulse compressor and using method thereof |
| CN103066488A (en) * | 2012-12-29 | 2013-04-24 | 深圳大学 | Multipass amplification system of ultrashort pulse laser |
| CN104201555A (en) * | 2014-09-18 | 2014-12-10 | 福建福晶科技股份有限公司 | Polarization insensitive electro-optic Q switch |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975241A (en) * | 2019-02-27 | 2019-07-05 | 哈尔滨工业大学 | A kind of corner reflection enhancing optoacoustic spectroscopy formula trace gas detection device and method |
| CN112018589A (en) * | 2019-05-28 | 2020-12-01 | 天津凯普林激光科技有限公司 | Laser amplification device and laser amplification method |
| CN112018589B (en) * | 2019-05-28 | 2021-07-13 | 天津凯普林激光科技有限公司 | Laser amplification device and laser amplification method |
| CN110600979A (en) * | 2019-08-31 | 2019-12-20 | 湖北久之洋红外系统股份有限公司 | Pyramid prism folding cavity laser |
| CN110649453A (en) * | 2019-08-31 | 2020-01-03 | 湖北久之洋红外系统股份有限公司 | Right-angle prism folding cavity laser |
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Application publication date: 20150812 |