CN104577683A - Resonant cavity of hollow-core photonic crystal fiber gas laser - Google Patents
Resonant cavity of hollow-core photonic crystal fiber gas laser Download PDFInfo
- Publication number
- CN104577683A CN104577683A CN201510015162.7A CN201510015162A CN104577683A CN 104577683 A CN104577683 A CN 104577683A CN 201510015162 A CN201510015162 A CN 201510015162A CN 104577683 A CN104577683 A CN 104577683A
- Authority
- CN
- China
- Prior art keywords
- hollow
- photonic crystal
- fiber
- crystal fiber
- core photonic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention discloses a resonant cavity of a hollow-core photonic crystal fiber gas laser. The resonant cavity comprises a microwave source which is connected with a microwave resonant cavity body through an output coupling waveguide. A hollow-core photonic crystal fiber is placed in an output coupling structure in the microwave resonant cavity body. The two ends of the hollow-core photonic crystal fiber both penetrate out of the output coupling structure, and one end or two ends of the hollow-core photonic crystal fiber is or are in fusion connection with a fiber Bragg grating. According to the resonant cavity, the narrow line wide output of the hollow-core photonic crystal fiber gas laser can be achieved without additionally arranging a grating element, the Bragg grating is used as the laser resonant cavity body, the size is small, the resonant cavity is easy to adjust, and laser operation is stable.
Description
Technical field
The present invention relates to laserresonator field, specifically a kind of resonant cavity of hollow core photon crystal fiber-optic fiber gas laser.
Background technology
Hollow-core photonic crystal fiber (Hollow Core Photonic Crystal Fibers, be called for short HC-PCF) be a kind of special optical fiber that newly-developed gets up, there is the Waveguide Mechanism based on photonic band gap effects and transmission characteristic, have investigation and application widely in fields such as light wave transmissions and control, light and material nonlinear interaction, Novel photonic devices.HC-PCF cross-sectional distribution two-dimensional and periodic aperture, and aperture and pitch-row are generally wavelength magnitude, and fibre core is a larger-size airport.Fiber core refractive index is lower than cladding index, and light transporting mechanism is wherein different from the total reflection principle of conventional fiber, but based on the brand-new Waveguide Mechanism of one of photonic band gap effects.HC-PCF distinctive catch light power transmitting level and extremely low loss characteristic, make it be suitable as very much miniature electric discharge resonant cavity, makes microcavity gas laser.This hollow core photon crystal fiber-optic fiber gas laser has that threshold value is low, volume is little, gas lifetime is long, is easy to advantages such as other optical fibre device combinations.Gas laser resonant cavity generally adopts two panels optical mirror slip, is placed in active medium two ends respectively, is formed the resonant cavity types such as stable cavity, unsteady cavity, metastable resonators with different curvature and reflectivity, and resonant cavity regulates difficulty larger.Because the general spectral line of emission of gas laser is wider, in the application needing narrow spectral line light source, need to add special linewidth narrowing module to reduce output spectra line width, such as excimer laser is used for semiconductor lithography processing.
Hollow core photon crystal fiber-optic fiber gas laser generally adopts microwave excitation, its basic structure is described by patent 201220733246.6, as shown in Figure 1, microwave source 1 is connected with microwave cavity 3 by exporting coupled waveguide 2, at output coupled structure 4 place of microwave cavity 3, be placed with hollow-core photonic crystal fiber 5, and the two ends of hollow-core photonic crystal fiber 5 all pass output coupled structure 4, the two ends of hollow-core photonic crystal fiber 5 are sealedly connected with air chamber 6 respectively, air chamber 6 has vacuum orifice 7 and gas feed 8, vacuum orifice 7 connects vacuum pump 10, in air chamber 6, the near ports of hollow-core photonic crystal fiber 5 is provided with resonant cavity sheet 9.Resonant cavity sheet 9 is two panels altogether, is placed on hollow-core photonic crystal fiber 5 two-port place respectively, general a slice plating total reflection film, and a slice plating part reflectance coating, two chamber sheets form laserresonator.
Such laser resonator structure does not possess the effect of frequency-selecting, and Laser output is the spectrum in broadband.If need narrow linewidth to export needs additionally add a grating again, such structure has three shortcomings: one is that the general volume of grating is comparatively large, and this allows original very compact and small and exquisite photon crystal fiber-optic fiber gas laser volume increase; Two is that grating price general charged is higher, adds system cost; Three is because optical fiber bore is very little, the reverberation of chamber sheet 9 will return in optical fiber, only resonant cavity sheet regulates difficulty just very large, if add this class of grating to the strict device of incident angle requirement, overall tuning difficulty is just larger, and the slight instability of grating will cause laser spectral variations, thus make Laser output unstable.
summary of the inventionthe object of this invention is to provide a kind of resonant cavity of hollow core photon crystal fiber-optic fiber gas laser, to solve prior art hollow core photon crystal fiber-optic fiber gas laser Problems existing.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of resonant cavity of hollow core photon crystal fiber-optic fiber gas laser, comprise microwave source, microwave source is connected with microwave cavity by exporting coupled waveguide, there is in microwave cavity output coupled structure, export in coupled structure and be placed with hollow-core photonic crystal fiber, and the two ends of hollow-core photonic crystal fiber all pass output coupled structure, it is characterized in that: hollow-core photonic crystal fiber one end is as output and be sealedly connected with air chamber, air chamber has vacuum orifice and gas feed, vacuum orifice connects vacuum pump, the near ports being positioned at hollow-core photonic crystal fiber in air chamber is provided with resonant cavity sheet, resonant cavity sheet is coated with part reflectance coating, the hollow-core photonic crystal fiber other end is as reflection end and welding has Fiber Bragg Grating FBG, described Fiber Bragg Grating FBG is chosen for the total reflection chamber of the device needing centre wavelength reflectivity high as laser.
The resonant cavity of described a kind of hollow core photon crystal fiber-optic fiber gas laser, is characterized in that: the output of hollow-core photonic crystal fiber also with a Fiber Bragg Grating FBG welding, and this Fiber Bragg Grating FBG is part grating, as output cavity.
Advantage of the present invention is: 1, can additional optical grating element just can realize hollow core photon crystal fiber-optic fiber gas laser narrow linewidth export.2, adopt Fiber Bragg Grating FBG as laserresonator, volume is little, and resonant cavity regulates easily, and laser is stable.If 3 outputs are Fiber Bragg Grating FBG, by the mode Output of laser of welding optic fibre, can be convenient to connect with other optical fibre device, the gas laser device of all-fiber can be realized.4, device cost is low.
Accompanying drawing explanation
Fig. 1 is prior art hollow core photon crystal fiber-optic fiber gas laser structure schematic diagram.
Fig. 2 be hollow-core photonic crystal fiber output of the present invention be tightly connected air chamber time structural representation.
Fig. 3 be hollow-core photonic crystal fiber output of the present invention be tightly connected air chamber time light path principle figure.
Structural representation when Fig. 4 is hollow-core photonic crystal fiber output welding optic fibre Bragg grating of the present invention.
Light path principle figure when Fig. 5 is hollow-core photonic crystal fiber output welding optic fibre Bragg grating of the present invention.
Embodiment
As Fig. 2, shown in Fig. 3, a kind of resonant cavity of hollow core photon crystal fiber-optic fiber gas laser, comprise microwave source 1, microwave source 1 is connected with microwave cavity 3 by exporting coupled waveguide 2, have in microwave cavity 3 and export coupled structure 4, export in coupled structure 4 and be placed with hollow-core photonic crystal fiber 5, and the two ends of hollow-core photonic crystal fiber 5 all pass output coupled structure 4, hollow-core photonic crystal fiber 5 one end is as output and be sealedly connected with air chamber 6, air chamber 6 has vacuum orifice 7 and gas feed 8, vacuum orifice 7 connects the near ports being positioned at hollow-core photonic crystal fiber 5 in vacuum pump 10 air chamber 6 and is provided with resonant cavity sheet 9, resonant cavity sheet 9 is coated with part reflectance coating, hollow-core photonic crystal fiber 5 other end is as reflection end and welding has Fiber Bragg Grating FBG 11, Fiber Bragg Grating FBG 11 is chosen for the total reflection chamber of the device needing centre wavelength reflectivity high as laser.
As shown in Figure 4, Figure 5, the output of hollow-core photonic crystal fiber 5 also with the welding of a Fiber Bragg Grating FBG 12, and this Fiber Bragg Grating FBG 12 is part grating, as output cavity.
The present invention implements in two kinds of situation: a kind of is that laser working gas needs periodic replacement, as excimer laser, carbon dioxide laser etc.; Another kind without the need to ventilation, as He-Ne Lasers etc.
The situation of periodic replacement is needed to be described below for laser working gas:
Hollow core photon crystal fiber-optic fiber gas laser adopts the middle hollow core portion of hollow-core photonic crystal fiber as laser working gas airtight container, excitation microwave is from being laterally evenly injected into the laser working gas of hollow core portion, energized gas, to reach the reversion of active population number, forms laser generation and exports under the effect of two ends resonant cavity.Meanwhile, hollow-core photonic crystal fiber plays guide-lighting effect.Fiber grating be a kind of by certain method make fiber core refractive index generation axial cyclic modulation and formed diffraction grating, be a kind of passive frequency-selecting device.Particularly Fiber Bragg Grating FBG realizes narrowband reflection to specific wavelength, has extraordinary frequency selectivity and higher damage threshold.As shown in Figure 2, one end of hollow-core photonic crystal fiber 5 and Fiber Bragg Grating FBG 11 welding, the other end is sealed by air chamber 6, end face fixing resonance chamber sheet 9.Because Fiber Bragg Grating FBG 11 is solid core fibres, hollow-core photonic crystal fiber 5 achieves the sealing of this end by welding with it, and the other end is connected with air chamber 6, and the laser working gas in Fiber Bragg Grating FBG can be changed.
Optical principle corresponding to this structure as shown in Figure 3,13 is hollow-core photonic crystal fiber 5 and the posetionof weld of Fiber Bragg Grating FBG 11, laser working gas bright dipping under microwave excitation at hollow-core photonic crystal fiber 5 center, the light that the light propagated towards Fiber Bragg Grating FBG 11 direction returns hollow-core photonic crystal fiber 5 through frequency-selecting and the reflection of Fiber Bragg Grating FBG 11 is the light of narrow linewidth.Fiber Bragg Grating FBG 11 can be chosen for the total reflection chamber of the device needing centre wavelength reflectivity high as laser.The narrow band light that reflection returns hollow-core photonic crystal fiber 5 propagates into the resonant cavity sheet 9 being coated with part reflectance coating after working-laser material gain, wherein a part of narrow band light directly exports, namely resonant cavity sheet 9 is as Laser output resonant cavity, another part is reflected back hollow-core photonic crystal fiber 5, obtains gain and again propagates to Fiber Bragg Grating FBG 11 direction.Said process runs repeatedly, forms stable narrow-linewidth laser and exports.
The situation of laser working gas without the need to periodic replacement is described below:
Because laser working gas is without the need to periodic replacement, hollow-core photonic crystal fiber inside is substituted the bad for the good after working gas, and two ends can be closed, and need not be connected again carry out gas exchanges with the external world.
As shown in Figure 4, one end of hollow-core photonic crystal fiber 5 and Fiber Bragg Grating FBG 12 welding, the other end and another Fiber Bragg Grating FBG 11 welding.It is inner that laser working gas is sealed in hollow-core photonic crystal fiber 5.
As shown in Figure 5,14 is hollow-core photonic crystal fibers 5 and the posetionof weld of Fiber Bragg Grating FBG 12 to optical principle corresponding to this structure, and 15 is hollow-core photonic crystal fibers 5 and the posetionof weld of Fiber Bragg Grating FBG 11.Laser working gas bright dipping under microwave excitation at hollow-core photonic crystal fiber 5 center, the light that the light propagated towards Fiber Bragg Grating FBG 11 direction returns hollow-core photonic crystal fiber 5 through frequency-selecting and the reflection of grating is the light of narrow linewidth.Fiber Bragg Grating FBG 11 can be chosen for the total reflection chamber of the device needing centre wavelength reflectivity high as laser.The narrow band light that reflection returns hollow-core photonic crystal fiber 5 propagates into Fiber Bragg Grating FBG 12 after working-laser material gain.Fiber Bragg Grating FBG 12 is part grating, as output cavity.Laser is by Fiber Bragg Grating FBG 12 rear portion narrow band light directly to outer output, and another part is reflected back hollow-core photonic crystal fiber 5, obtains gain and again propagates to Fiber Bragg Grating FBG 11 direction.Said process runs repeatedly, forms stable narrow-linewidth laser and exports.
Claims (2)
1. the resonant cavity of a hollow core photon crystal fiber-optic fiber gas laser, comprise microwave source, microwave source is connected with microwave cavity by exporting coupled waveguide, there is in microwave cavity output coupled structure, export in coupled structure and be placed with hollow-core photonic crystal fiber, and the two ends of hollow-core photonic crystal fiber all pass output coupled structure, it is characterized in that: hollow-core photonic crystal fiber one end is as output and be sealedly connected with air chamber, air chamber has vacuum orifice and gas feed, vacuum orifice connects vacuum pump, the near ports being positioned at hollow-core photonic crystal fiber in air chamber is provided with resonant cavity sheet, resonant cavity sheet is coated with part reflectance coating, the hollow-core photonic crystal fiber other end is as reflection end and welding has Fiber Bragg Grating FBG, described Fiber Bragg Grating FBG is chosen for the total reflection chamber of the device needing centre wavelength reflectivity high as laser.
2. the resonant cavity of a kind of hollow core photon crystal fiber-optic fiber gas laser according to claim 1, it is characterized in that: the output of hollow-core photonic crystal fiber also with a Fiber Bragg Grating FBG welding, and this Fiber Bragg Grating FBG is part grating, as output cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510015162.7A CN104577683A (en) | 2015-01-12 | 2015-01-12 | Resonant cavity of hollow-core photonic crystal fiber gas laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510015162.7A CN104577683A (en) | 2015-01-12 | 2015-01-12 | Resonant cavity of hollow-core photonic crystal fiber gas laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104577683A true CN104577683A (en) | 2015-04-29 |
Family
ID=53093173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510015162.7A Pending CN104577683A (en) | 2015-01-12 | 2015-01-12 | Resonant cavity of hollow-core photonic crystal fiber gas laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104577683A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106680218A (en) * | 2016-12-29 | 2017-05-17 | 中国人民解放军国防科学技术大学 | Optical fiber ring-down cavity for gas concentration measuring system, and gas concentration measuring system and method |
| CN111770741A (en) * | 2018-01-25 | 2020-10-13 | 克拉诺瓦公司 | Instrument for cutting human or animal tissue comprising an optical coupler |
| EP3889681A1 (en) * | 2020-03-31 | 2021-10-06 | ASML Netherlands B.V. | An assembly including a non-linear element and a method of use thereof |
| CN113557472A (en) * | 2019-03-04 | 2021-10-26 | Asml荷兰有限公司 | Hollow core photonic crystal fiber based optical component for producing broadband radiation |
| CN114199222A (en) * | 2021-12-13 | 2022-03-18 | 北京航空航天大学 | Active resonance optical fiber gyroscope |
| CN114754800A (en) * | 2022-06-15 | 2022-07-15 | 中国船舶重工集团公司第七0七研究所 | Method and system for assembling hollow microstructure fiber optic gyroscope light path |
| CN114779411A (en) * | 2022-03-23 | 2022-07-22 | 武汉锐科光纤激光技术股份有限公司 | Laser transmission optical cable |
| CN116161608A (en) * | 2022-11-29 | 2023-05-26 | 北京大学长三角光电科学研究院 | Crystal microcavity packaging structure and method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070019689A1 (en) * | 2003-09-30 | 2007-01-25 | The Regents Of The University Of Ca | Diode pumped alkali vapor fiber laser |
| CN103066490A (en) * | 2012-12-11 | 2013-04-24 | 华中科技大学 | Optical fiber alkali metal vapor laser |
| CN103078239A (en) * | 2012-12-27 | 2013-05-01 | 中国科学院安徽光学精密机械研究所 | Microwave gas excitation device and method |
| CN203071386U (en) * | 2012-12-27 | 2013-07-17 | 中国科学院安徽光学精密机械研究所 | Device exciting gas through microwaves |
| US20140048410A1 (en) * | 2011-04-29 | 2014-02-20 | Universite De Limoges | Device for the excitation of a gas column enclosed in a hollow-core optical fibre |
-
2015
- 2015-01-12 CN CN201510015162.7A patent/CN104577683A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070019689A1 (en) * | 2003-09-30 | 2007-01-25 | The Regents Of The University Of Ca | Diode pumped alkali vapor fiber laser |
| US20140048410A1 (en) * | 2011-04-29 | 2014-02-20 | Universite De Limoges | Device for the excitation of a gas column enclosed in a hollow-core optical fibre |
| CN103066490A (en) * | 2012-12-11 | 2013-04-24 | 华中科技大学 | Optical fiber alkali metal vapor laser |
| CN103078239A (en) * | 2012-12-27 | 2013-05-01 | 中国科学院安徽光学精密机械研究所 | Microwave gas excitation device and method |
| CN203071386U (en) * | 2012-12-27 | 2013-07-17 | 中国科学院安徽光学精密机械研究所 | Device exciting gas through microwaves |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106680218A (en) * | 2016-12-29 | 2017-05-17 | 中国人民解放军国防科学技术大学 | Optical fiber ring-down cavity for gas concentration measuring system, and gas concentration measuring system and method |
| CN111770741A (en) * | 2018-01-25 | 2020-10-13 | 克拉诺瓦公司 | Instrument for cutting human or animal tissue comprising an optical coupler |
| US11754906B2 (en) | 2019-03-04 | 2023-09-12 | Asml Netherlands B.V. | Hollow-core photonic crystal fiber based optical component for broadband radiation generation |
| CN113557472A (en) * | 2019-03-04 | 2021-10-26 | Asml荷兰有限公司 | Hollow core photonic crystal fiber based optical component for producing broadband radiation |
| US11556044B2 (en) | 2019-03-04 | 2023-01-17 | Asml Netherlands B.V. | Hollow-core photonic crystal fiber based optical component for broadband radiation generation |
| CN113557472B (en) * | 2019-03-04 | 2023-04-07 | Asml荷兰有限公司 | Hollow core photonic crystal fiber based optical component for producing broadband radiation |
| EP3889681A1 (en) * | 2020-03-31 | 2021-10-06 | ASML Netherlands B.V. | An assembly including a non-linear element and a method of use thereof |
| WO2021197716A1 (en) * | 2020-03-31 | 2021-10-07 | Asml Netherlands B.V. | An assembly including a non-linear element and a method of use thereof |
| US11886096B2 (en) | 2020-03-31 | 2024-01-30 | Asml Netherlands B.V. | Assembly including a non-linear element and a method of use thereof |
| CN114199222A (en) * | 2021-12-13 | 2022-03-18 | 北京航空航天大学 | Active resonance optical fiber gyroscope |
| CN114199222B (en) * | 2021-12-13 | 2023-03-14 | 北京航空航天大学 | Active resonance optical fiber gyroscope |
| CN114779411A (en) * | 2022-03-23 | 2022-07-22 | 武汉锐科光纤激光技术股份有限公司 | Laser transmission optical cable |
| CN114754800B (en) * | 2022-06-15 | 2022-09-06 | 中国船舶重工集团公司第七0七研究所 | Hollow microstructure fiber optic gyroscope light path assembly method and system |
| CN114754800A (en) * | 2022-06-15 | 2022-07-15 | 中国船舶重工集团公司第七0七研究所 | Method and system for assembling hollow microstructure fiber optic gyroscope light path |
| CN116161608B (en) * | 2022-11-29 | 2023-08-04 | 北京大学长三角光电科学研究院 | Crystal microcavity packaging structure and method thereof |
| CN116161608A (en) * | 2022-11-29 | 2023-05-26 | 北京大学长三角光电科学研究院 | Crystal microcavity packaging structure and method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104577683A (en) | Resonant cavity of hollow-core photonic crystal fiber gas laser | |
| US5497265A (en) | High-power signals optical generator for telecommunication systems | |
| CN104143757B (en) | Tunable wave length narrow linewidth light source based on distributed Bragg reflection laser | |
| EP3058628B1 (en) | Method and apparatus for generating high power laser light | |
| CN104466636A (en) | Single-frequency Q-switched pulsed fiber laser | |
| CN109802290A (en) | Based on ultrashort pulse fiber laser infrared in synchronizing mode-licked | |
| CN203377480U (en) | All-fiber external-cavity tunable fiber laser | |
| EP2557641B1 (en) | Pulse fiber laser device | |
| CN104409951B (en) | A kind of all -fiber mode-locked laser based on multimode interference couplers Kerr effect | |
| CN102332676A (en) | Mid-infrared fiber laser | |
| CN102299475A (en) | Narrow-linewidth single-transverse mode hundred watt level 2 micron thulium doped fiber laser with all-fiber structure | |
| CN107887785B (en) | Single-frequency fiber laser with composite optical fiber and waveguide resonant ring | |
| CN103427318A (en) | All-fiber external cavity tunable fiber laser | |
| CN211265955U (en) | Adjustable ultra-high repetition frequency ultra-short pulse fiber laser | |
| CN102122790B (en) | Linear polarization acousto-optic modulator Q-switched optical fiber laser with single end coupled with optical fiber | |
| CN205646425U (en) | Tunable fiber laser based on optic fibre overlaps grating | |
| CN105742948A (en) | Tunable fiber laser based on fiber Bragg grating | |
| CN105742959A (en) | Phase shifting fiber bragg grating based external cavity feedback semiconductor laser | |
| CN102570275B (en) | Laser capable of tuning wavelengths | |
| CN102610988B (en) | Dual-wavelength fiber laser | |
| CN216773785U (en) | 2-3 mu m broadband tuned intermediate infrared Raman soliton femtosecond laser | |
| CN211377170U (en) | Nonlinear ring mirror mode-locked fiber laser based on inner cavity phase modulator | |
| CN107706732B (en) | Active mode-locking fiber laser based on group velocity matching photonic crystal fiber | |
| KR100281642B1 (en) | Inductive Brillouin Scattering and Erbium Multi Wavelength Generator | |
| CN113131322B (en) | Mode locking fiber laser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150429 |
|
| RJ01 | Rejection of invention patent application after publication |