CN111900600A - Compact laser machine case capable of carrying out temperature control and repetition frequency locking - Google Patents
Compact laser machine case capable of carrying out temperature control and repetition frequency locking Download PDFInfo
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- CN111900600A CN111900600A CN202010622795.5A CN202010622795A CN111900600A CN 111900600 A CN111900600 A CN 111900600A CN 202010622795 A CN202010622795 A CN 202010622795A CN 111900600 A CN111900600 A CN 111900600A
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- repetition frequency
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
- H01S3/06704—Housings; Packages
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
- H01S3/1106—Mode locking
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- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
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- Optics & Photonics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Lasers (AREA)
Abstract
The invention discloses a compact laser case capable of carrying out temperature control and repetition frequency locking, which comprises an inner layer structural member and an outer layer structural member; the inner-layer structural part comprises an inner-layer base, and inner-layer fastening pieces are respectively arranged on two opposite sides of the inner-layer base; the outer layer structural part comprises an outer layer base and an outer layer cover positioned on the upper surface of the outer layer base, and outer layer fasteners are respectively arranged on two opposite sides of the outer layer base; a groove matched with the inner-layer structural member is formed in the outer-layer base; the outer cover, the outer fastening piece, the outer base and the inner base are provided with coaxial threaded holes for fixing the inner structural member and the outer structural member.
Description
Technical Field
The invention relates to the field of ultrafast laser of lasers, and provides a compact laser case capable of performing temperature control and repetition frequency locking.
Background
In recent years, mode-locked pulse lasers with high repetition rates have been one of the hot spots of research because of their important applications in optical frequency combing, ultrafast measurement, laser processing, and the like.
Compared with a laser with a space structure, the all-fiber mode-locked laser has the advantages of compact structure, small influence of external environment and the like, but the optical fiber is easy to deform along with the change of the working temperature of the laser, so that the output of the laser is unstable, and if stable mode-locked pulse output is formed, a temperature controller and piezoelectric ceramic are required to be additionally arranged on the laser to carry out strict temperature control and repetition frequency locking.
However, the laser cavity for realizing mode-locked pulse output with High repetition frequency (GHz) is usually an ultra-short linear laser cavity (cm), and the difficulty lies in the construction and packaging of the laser, how to fix the ultra-short linear laser cavity to prevent the break of the ultra-short optical fiber, how to install the temperature control and repetition frequency locking device in the ultra-short linear laser cavity, which is a breakthrough problem required for the construction of the laser (TianQiao, huhui Cheng, Xiaoxiao Wen, Wenlong Wang, Wei Lin, YiZhou, YuankaiGuo, Yicai Liu, and Zhongmin Yang, "High-power 2 GHz pulse-fiber amplified laser system at 2.0-.
Disclosure of Invention
One of the purposes of the invention is to provide a compact laser case capable of carrying out temperature control and repetition frequency locking, which is used for building and packaging an all-fiber ultrashort linear laser cavity and realizing high repetition frequency mode-locked pulse laser output.
The second purpose of the present invention is to provide a design concept and scheme for a compact laser housing that can perform temperature control and repetition frequency locking.
The invention innovatively provides a compact laser case structure capable of carrying out temperature control and repetition frequency locking. The invention uses a special design of an inner and outer double-layer structure, designs a groove matched with the structure of the ultrashort linear cavity optical fiber laser, and tightly fixes the laser in a structural member, thereby avoiding the influence of environmental disturbance and ensuring the stable operation of a laser cavity. In addition, a sensor for placing a temperature controller and a position of piezoelectric ceramics are designed in the case, so that temperature control and repetition frequency locking are realized for the laser, and the stability of outputting mode locking pulses is further ensured. The whole case is in a compact cuboid appearance.
The invention is realized by at least one of the following technical schemes.
A compact laser case capable of temperature control and repetition frequency locking comprises an inner layer structural member and an outer layer structural member;
the inner-layer structural part comprises an inner-layer base for fixing the laser, and inner-layer fasteners are respectively arranged on two opposite sides of the inner-layer base;
the outer layer structural part comprises an outer layer base and an outer layer cover positioned on the upper surface of the outer layer base, and outer layer fasteners are respectively arranged on two opposite sides of the outer layer base; a groove matched with the inner-layer structural member is formed in the outer-layer base;
the outer cover, the outer fastening piece, the outer base and the inner base are provided with coaxial threaded holes for fixing the inner structural member and the outer structural member.
Furthermore, irregular grooves are formed in the surfaces of the two sides of the inner layer base and the bottom surface of the inner layer fastening piece and are matched with an optical fiber and a ceramic ferrule metal handle of the packaged laser, so that the laser can be embedded and fixed in a gap formed between the inner layer base and the inner layer fastening piece.
Furthermore, one side of the inner layer base is provided with a circular groove for placing a sensor of a temperature controller to control the temperature of the laser.
Furthermore, the middle of the inner layer base is provided with a concave platform for placing piezoelectric ceramics, and the piezoelectric ceramics can finely regulate and control the optical fiber length of the packaged laser and realize the locking of the repetition frequency of the laser.
Furthermore, the two sides of the outer-layer base provided with the outer-layer fastening piece and the bottom surface of the outer-layer fastening piece are provided with irregular grooves which are matched with the ceramic ferrule and the sleeve structure of the packaged laser, so that the two sides of the laser can be embedded and fixed in a gap formed between the outer-layer base and the outer-layer fastening piece.
Furthermore, one side surface of the outer layer base is provided with a small hole at a position corresponding to the circular groove of the inner layer base, and the small hole is used for leading out an electric wire of the sensor.
Furthermore, two side surfaces of the outer layer base are provided with small holes at positions corresponding to the concave platforms of the inner layer base, and the small holes are used for leading out wires of the piezoelectric ceramics.
Compared with the prior art, the invention has the following advantages:
1. the building and packaging scheme designed for the high repetition frequency ultrashort linear cavity laser is compact in structure;
2. the heat conduction speed is high due to the all-metal structure;
3. the full-screw assembly is adopted, the structure is simple, and the operation is convenient;
4. the invention skillfully utilizes an internal and external double-layer structure, is provided with a groove matched with the structure of the ultrashort linear cavity optical fiber laser, tightly fixes the laser in a structural member, tightly fixes the ultrashort linear cavity laser by utilizing a fastener, can turn over the laser at will, is convenient for product transportation, avoids the influence of environmental disturbance at the same time, and ensures the stable operation of the laser cavity. In addition, a sensor for placing a temperature controller and a position of piezoelectric ceramics are designed in the case, so that temperature control and repetition frequency locking are realized for the laser, and the stability of outputting mode locking pulses is further ensured. The whole case is in a compact cuboid appearance and has important significance in installation.
Drawings
FIG. 1 is a perspective view of a compact laser housing with temperature control and repetition rate locking according to the present invention;
FIG. 2 is a schematic perspective view of a compact laser housing with temperature control and repetition rate locking according to the present invention;
FIG. 3 is a perspective view of the inner layer fastener of the compact laser housing of the present invention with temperature control and repetition rate locking;
FIG. 4 is a perspective view of the compact laser housing outer layer fastener of the present invention with temperature control and repetition rate locking;
wherein: 1-inner layer base; 2-inner layer fasteners; 3-outer layer base; 4-outer layer fasteners; 5-outer layer cover.
Detailed Description
The invention is further described with reference to the following figures and examples.
A compact laser housing with temperature control and repetition rate locking as shown in fig. 1 and 2 comprises an inner structure and an outer structure;
the inner layer structural part comprises an inner layer base 1 for fixing the laser, and inner layer fasteners 2 are respectively arranged on two opposite sides of the inner layer base 1; the inner layer base 1 and the inner layer fastening piece 2 are both provided with coaxial threaded holes for fixing the inner layer base 1 and the inner layer fastening piece to form an inner layer structural piece; fig. 3 is a perspective view of the inner layer fastener.
Irregular grooves are formed in the surfaces of the two sides of the inner layer base 1 and the bottom surface of the inner layer fastening piece 2 and are matched with an optical fiber and a ceramic ferrule metal handle of the packaged laser, so that the laser can be embedded and fixed in a gap formed between the inner layer base 1 and the inner layer fastening piece 2.
One side of the inner layer base 1 is provided with a circular groove for placing a sensor of a temperature controller to control the temperature of the laser.
The middle of the inner layer base 1 is provided with a concave platform for placing piezoelectric ceramics, and the piezoelectric ceramics can finely regulate and control the optical fiber length of the packaged laser and realize the locking of the repetition frequency of the laser.
The outer layer structural part comprises an outer layer base 3 and an outer layer cover 5 positioned on the upper surface of the outer layer base 3, and outer layer fasteners 4 are respectively arranged on two opposite sides of the outer layer base 3; fig. 4 is a perspective view of the outer layer fastener.
The two opposite sides of the outer-layer base 3 and the bottom surface of the outer-layer fastening piece 4 are provided with irregular grooves which are matched with a ceramic ferrule and a sleeve structure of the packaged laser, so that the two sides of the laser can be embedded and fixed in a gap formed between the outer-layer base 3 and the outer-layer fastening piece 4.
The inner part of the outer layer base 3 is provided with a groove matched with the inner layer structural member, and the inner layer structural member is arranged in the groove.
And a small hole at the position corresponding to the circular groove of the inner layer base 1 is formed in one side surface of the outer layer base 3 and used for leading out an electric wire of the sensor.
Two sides of the outer layer base 3 are provided with small holes corresponding to the concave stations of the inner layer base 1, and the small holes are used for leading out the wires of the piezoelectric ceramics.
The outer layer cover 5, the outer layer fastening piece 4, the outer layer base 3 and the inner layer base 1 are provided with coaxial threaded holes for fixing the inner layer structural piece and the outer layer structural piece, and a stable compact laser case capable of performing temperature control and repetition frequency locking is formed integrally.
Coaxial threaded holes formed in the outer layer cover 5, the outer layer fastening piece 4 and the outer layer base 3 are countersunk holes, the surfaces of screws are flush with the upper surface of the outer layer cover 5, and the whole structure is cuboid in appearance, 106mm long, 18mm wide and 14.5mm high.
The method for packaging the ultrashort linear cavity laser by the case comprises the following steps:
1) placing an ultrashort linear cavity laser on an inner layer base 1, fixing the laser by using an inner layer fastener 2, screwing a fastening screw on a corresponding threaded hole, perfectly matching a gap formed between an optical fiber and a ceramic ferrule metal piece of the laser and the inner layer base 2 and the inner layer fastener 3, and fixing the laser in an inner layer structural member;
2) fixing an inner layer structural member in an outer layer base 3, fixing two sides of a laser by using outer layer fastening 4 pieces, forming a ground gap between a ceramic ferrule and a ceramic sleeve on two sides of the laser and the outer layer base 3 and the outer layer fastening 4, and fixing the laser in the inner layer structural member and the outer layer structural member;
3) fixing the piezoelectric ceramic in a concave table of the inner-layer base 1, leading out an electric wire from small holes on two corresponding side surfaces of the outer-layer base 3, and then connecting the electric wire into a circuit control system to realize the locking of the repetition frequency of the laser;
4) fixing a sensor of a temperature controller in a circular groove on the side surface of the inner-layer base 1, leading out an electric wire from a small hole on the side surface corresponding to the outer-layer base, and then connecting the electric wire to the temperature controller to realize temperature control on the laser;
5) covering an outer layer cover 5, and screwing fastening screws on corresponding threaded holes to form a completely packaged laser case; and the high repetition frequency mode locking pulse output can be realized by switching on a power supply, pumping the optical fiber and the like.
The above embodiment is one of the embodiments of the present invention, but the embodiments of the present invention are not limited by the above embodiment and the test examples, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be regarded as equivalent substitutions and are included in the scope of the present invention.
Claims (7)
1. A compact laser case capable of temperature control and repetition frequency locking is characterized by comprising an inner layer structural member and an outer layer structural member;
the inner-layer structural part comprises an inner-layer base (1) for fixing the laser, and inner-layer fasteners (2) are respectively arranged on two opposite sides of the inner-layer base (1);
the outer layer structural part comprises an outer layer base (3) and an outer layer cover (5) positioned on the upper surface of the outer layer base (3), and outer layer fasteners (4) are respectively arranged on two opposite sides of the outer layer base (3); a groove matched with the inner-layer structural member is formed in the outer-layer base (3);
the outer cover (5), the outer fastening piece (4), the outer base (3) and the inner base (1) are provided with coaxial threaded holes, and the inner structural piece and the outer structural piece are fixed.
2. The compact laser cabinet capable of temperature control and repetition frequency locking according to claim 1, characterized in that the two side surfaces of the inner base (1) and the bottom surface of the inner fastening member (2) are provided with irregular grooves matching the optical fiber and ferrule metal handle of the packaged laser, so that the laser can be embedded and fixed in the gap formed between the inner base (1) and the inner fastening member (2).
3. The compact laser cabinet capable of temperature control and repetition frequency locking according to claim 1, characterized in that one of the side surfaces of the inner base (1) is provided with a circular groove for placing a sensor of a temperature controller to control the temperature of the laser.
4. The compact laser cabinet capable of temperature control and repetition frequency locking according to claim 1, characterized in that the middle of the inner base (1) is provided with a concave platform for placing piezoelectric ceramics.
5. The compact laser cabinet capable of temperature control and repetition rate locking according to claim 1, characterized in that both sides of the outer base (3) and the bottom surface of the outer fastening member (4) are provided with irregular grooves matching the ferrule and sleeve structure of the packaged laser, so that both sides of the laser can be embedded and fixed in the gap formed between the outer base (3) and the outer fastening member (4).
6. The compact laser cabinet capable of temperature control and repetition frequency locking according to claim 1, characterized in that one of the side surfaces of the outer base (3) is provided with a small hole corresponding to the circular groove of the inner base (1) for leading out the wires of the sensor.
7. The compact laser cabinet capable of temperature control and repetition frequency locking according to claim 1, characterized in that the two sides of the outer base (3) are provided with small holes corresponding to the concave platform of the inner base (1) for leading out the wires of the piezoelectric ceramics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010622795.5A CN111900600A (en) | 2020-06-30 | 2020-06-30 | Compact laser machine case capable of carrying out temperature control and repetition frequency locking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010622795.5A CN111900600A (en) | 2020-06-30 | 2020-06-30 | Compact laser machine case capable of carrying out temperature control and repetition frequency locking |
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| Publication Number | Publication Date |
|---|---|
| CN111900600A true CN111900600A (en) | 2020-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010622795.5A Pending CN111900600A (en) | 2020-06-30 | 2020-06-30 | Compact laser machine case capable of carrying out temperature control and repetition frequency locking |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035125A (en) * | 2009-09-25 | 2011-04-27 | 中国科学院半导体研究所 | Encapsulating structure of distributed feedback (DFB) fiber laser |
| CN102496842A (en) * | 2011-12-15 | 2012-06-13 | 中国科学院上海光学精密机械研究所 | High pulse repetition frequency mode-locking optical fiber laser |
| US20140270668A1 (en) * | 2013-03-15 | 2014-09-18 | Ofs Fitel, Llc | Removing unwanted light from high-power optical systems |
| CN205377008U (en) * | 2016-01-22 | 2016-07-06 | 厦门彼格科技有限公司 | Narrow linewidth fiber laser packaging hardware |
| EP3236546A2 (en) * | 2016-04-22 | 2017-10-25 | ADVA Optical Networking SE | Fiber temperature control assembly |
| CN208336803U (en) * | 2018-06-29 | 2019-01-04 | 中国船舶重工集团公司第七一五研究所 | A kind of high reliability optical fiber laser packaging system |
| CN209266833U (en) * | 2019-01-29 | 2019-08-16 | 中山铟尼镭斯科技有限公司 | A kind of optical fiber femtosecond laser |
-
2020
- 2020-06-30 CN CN202010622795.5A patent/CN111900600A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035125A (en) * | 2009-09-25 | 2011-04-27 | 中国科学院半导体研究所 | Encapsulating structure of distributed feedback (DFB) fiber laser |
| CN102496842A (en) * | 2011-12-15 | 2012-06-13 | 中国科学院上海光学精密机械研究所 | High pulse repetition frequency mode-locking optical fiber laser |
| US20140270668A1 (en) * | 2013-03-15 | 2014-09-18 | Ofs Fitel, Llc | Removing unwanted light from high-power optical systems |
| CN205377008U (en) * | 2016-01-22 | 2016-07-06 | 厦门彼格科技有限公司 | Narrow linewidth fiber laser packaging hardware |
| EP3236546A2 (en) * | 2016-04-22 | 2017-10-25 | ADVA Optical Networking SE | Fiber temperature control assembly |
| CN208336803U (en) * | 2018-06-29 | 2019-01-04 | 中国船舶重工集团公司第七一五研究所 | A kind of high reliability optical fiber laser packaging system |
| CN209266833U (en) * | 2019-01-29 | 2019-08-16 | 中山铟尼镭斯科技有限公司 | A kind of optical fiber femtosecond laser |
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Application publication date: 20201106 |
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