CN218976012U - Green light laser - Google Patents
Green light laser Download PDFInfo
- Publication number
- CN218976012U CN218976012U CN202223256181.3U CN202223256181U CN218976012U CN 218976012 U CN218976012 U CN 218976012U CN 202223256181 U CN202223256181 U CN 202223256181U CN 218976012 U CN218976012 U CN 218976012U
- Authority
- CN
- China
- Prior art keywords
- light
- cavity mirror
- splitting device
- cavity
- green laser
- 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.)
- Active
Links
Images
Landscapes
- Lasers (AREA)
Abstract
The application provides a green laser which sequentially comprises a pumping source, a collimating lens, a focusing lens, a first cavity mirror, a gain medium, a Q-switching element and a second cavity mirror in a first direction; the second direction sequentially comprises a third cavity mirror and a displacement motor; the third direction sequentially comprises a first light-splitting device, a frequency doubling crystal and a fourth cavity mirror; the third cavity mirror is positioned behind the second cavity mirror in the second direction, and the first light splitting device is positioned behind the first cavity mirror in the third direction. According to the green laser, the third cavity mirror is driven to move in the second direction through the position of the movable displacement motor, so that the cavity length can be adjusted, the cavity length suitable for the corresponding power output can be obtained through adjusting the cavity length, the same green laser can stably and continuously output multiple powers, and the green laser which is precise and adjustable in cavity length, compatible with multiple high-low power overlapping stable outputs, high in integration and compact in structure is obtained.
Description
Technical Field
The utility model relates to the technical field of lasers, in particular to a green laser with adjustable cavity length and high stability.
Background
In recent years, with the increasingly vigorous demands of new energy industries, higher requirements are put on front-end laser processing technology. The effect of laser stability on laser light is enormous, especially when the laser is used in precision machining, the effect of cavity length on laser stability is particularly critical, and we know that the stability conditions of the resonant cavity are:
the curvatures R1 and R2 of the laser cavity mirror are generally specific in practical use, and the cavity length L can be controlled to greatly improve the practical use effect for the laser. The influence of a thermal lens of a high-power solid laser is not negligible in the actual working process, the traditional solid laser can achieve stable laser output under a certain specific state, and one laser can not meet the requirement when an application end needs to use high-power and low-power overlapped light emitting operation, or can not be compatible when the application end needs to use lasers with different powers for operation. The green laser has a shorter wavelength than infrared, has larger photon energy, and is widely applied to the fields of fine processing, crystal inner engraving and the like, and the stability of the green laser directly determines the yield of the fine processing.
Based on the above, it is necessary to invent a solid green laser capable of obtaining a green light output with adjustable cavity length, high stability and compact structure.
Disclosure of Invention
The present application is directed to a green laser for solving the above-mentioned problems in the prior art.
In order to achieve the above purpose, the present application provides the following technical solutions:
the green laser has the advantages of adjustable cavity length, high stability and compact structure. The green laser sequentially comprises a pumping source, a collimating lens, a focusing lens, a first cavity mirror, a gain medium, a Q-switching element and a second cavity mirror in a first direction; the second direction sequentially comprises a third cavity mirror and a displacement motor; the third direction sequentially comprises a first light-splitting device, a frequency doubling crystal and a fourth cavity mirror; the third cavity mirror is positioned behind the second cavity mirror in the second direction, and the first light splitting device is positioned behind the first cavity mirror in the third direction.
The pump source is generally a semiconductor laser, and emits infrared light beams with the wavelength of 808nm/880nm, the infrared light beams are output through optical fiber jumpers, and when the light beams collimated by the collimating lens pass through the focusing lens, the light beams are converged by the focusing lens, so that the light beams are focused in the gain medium after passing through the first cavity mirror. The pump source, the optical fiber jumper, the collimating lens and the focusing lens together form the pump coupling module of the green laser.
The Q-switched element may control the power pulses required for the forming operation.
The first cavity mirror, the second cavity mirror, the third cavity mirror and the fourth cavity mirror jointly form a resonant module, namely a resonant cavity, of the green laser.
The resonance principle of the green laser of the present application is as follows: the pumping light passing through the first cavity mirror generates stimulated radiation in the gain medium to generate 1000-1100nm infrared light beams, and reflecting films are plated on the corresponding sides of the cavities of the first cavity mirror, the second cavity mirror, the third cavity mirror and the fourth cavity mirror. The 1000-1100nm infrared beam is returned to the first cavity mirror through the second cavity mirror, the third cavity mirror and the fourth cavity mirror, and is continuously reflected to form a loop. When the pump source is continuously excited, the 1000-1100nm infrared photons continuously resonate in the loop. The 1000-1100nm beam in the cavity may have a nonlinear effect when passing through the frequency doubling crystal in the cavity, producing 500-550nm beam. And the 500-550nm green light is efficiently and stably output to the fourth direction through the side surface of the 500-550nm high-reflection film of the first light-splitting device.
In order to match different powers of the green laser, adverse effects on stability of the resonant cavity caused by the thermal lens under different powers are eliminated, high-stability green light output is obtained, the third cavity mirror is fixed on the displacement motor, and the third cavity mirror is driven to move in the second direction by moving the position of the displacement motor, so that the cavity length is adjustable. Meanwhile, the third cavity mirror moves in the second direction, so that the light path direction of the whole green laser cannot be changed when the cavity length is regulated, and the stability of green light output is ensured.
According to the green laser, the third cavity mirror is driven to move in the second direction through the position of the movable displacement motor, so that the cavity length can be adjusted, the cavity length suitable for the corresponding power output can be obtained through adjusting the cavity length, the same green laser can stably and continuously output multiple powers, and the green laser which is precise and adjustable in cavity length, compatible with multiple high-low power overlapping stable outputs, high in integration and compact in structure is obtained.
Drawings
For a clearer description of embodiments of the present application or of the prior art, the drawings that are used in the description of the embodiments or of the prior art will be briefly described, it being apparent that the drawings in the description that follow are only some embodiments of the present application, and that other drawings may be obtained from these drawings by a person of ordinary skill in the art without inventive effort.
Fig. 1 is a schematic diagram of a first structure of a green laser provided in the present application;
fig. 2 is a schematic diagram of a second structure of the green laser provided in the present application;
fig. 3 is a schematic diagram of a third structure of the green laser provided in the present application;
fig. 4 is a schematic diagram of a fourth structure of the green laser provided in the present application;
fig. 5 is a schematic view of a fifth structure of the green laser provided in the present application.
Reference numerals: 1. the device comprises a pumping source, 2, a collimating lens, 3, a focusing lens, 4, a first cavity mirror, 5, a gain medium, 6, a first aperture diaphragm, 7, a Q-switched element, 8, a second aperture diaphragm, 9, a second cavity mirror, 10, a third cavity mirror, 11, a first idler light collector, 12, a displacement motor, 13, a third aperture diaphragm, 14, a first light splitting device, 15, a temperature control module, 16, a frequency doubling crystal, 17, a fourth cavity mirror, 18, a second idler light collector, 19, a fourth aperture diaphragm, 20, a second light splitting device, 21, a third light splitting device, 22, a third idler light collector, 23 and a fourth idler light collector.
Detailed Description
In order to provide a better understanding of the present application, those skilled in the art will now make further details of the present application with reference to the drawings and detailed description. It should be apparent that the described embodiments are only some of the embodiments of the present application and are not intended to limit the scope of the claims of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
Referring to fig. 1, fig. 1 is a schematic diagram of a first structure of a green laser provided in the present application, where the green laser includes a pump source 1, a collimating lens 2, a focusing lens 3, a first cavity mirror 4, a gain medium 5, a Q-switching element 7, and a second cavity mirror 9 in order in a first direction; the second direction comprises a third cavity mirror 10 and a displacement motor 12 in sequence; the third direction sequentially comprises a first light-splitting device 14, a frequency doubling crystal 16 and a fourth cavity mirror 17; the third cavity mirror 10 is located behind the second cavity mirror 9 in the second direction, and the first light splitting device 14 is located behind the first cavity mirror 4 in the third direction.
The pump source 1 is typically a semiconductor laser, and emits an infrared beam with a wavelength of about 808nm/880nm, and when the infrared beam is output through an optical fiber jumper (not shown in the figure) and collimated by the collimating lens 2, the infrared beam is converged by the focusing lens 3 and focused in the gain medium 5 after passing through the first cavity lens 4. I.e. the pump source 1, the optical fiber jumper, the collimator lens 2 and the focusing lens 3 together form a pump coupling module of the green laser of the present application.
The first cavity mirror 4, the second cavity mirror 9, the third cavity mirror 10 and the fourth cavity mirror 17 together form a resonant module, namely a resonant cavity, of the green laser.
The resonance principle of the green laser of the present application is as follows: the pump light passing through the first cavity mirror 4 generates stimulated radiation in the gain medium 5 to generate 1000-1100nm infrared light beams, the light beams are reflected to the third cavity mirror 10 through the second cavity mirror 9 and then turned back by the original path of the third cavity mirror 10, the light beams are reflected through the second cavity mirror 9 and the first cavity mirror 4 and then turned back by the original path at the fourth cavity mirror 17, and the light beams turned back by the fourth cavity mirror 17 are reflected by the first cavity mirror 4, so that a loop is completed. The 1000-1100nm beam in the cavity experiences a nonlinear effect as it passes through the frequency doubling crystal 16, producing a 500-550nm beam. When the pump source 1 is continuously excited, the 1000-1100nm infrared photons continuously resonate in this loop.
In order to ensure the high-efficiency and stable normal operation of the resonant cavity, a side surface of the first cavity mirror 4, which is close to the gain medium 5 or the first light-splitting device 14, is plated with a 1000-1100nm high-reflection film, a side surface of the second cavity mirror 9, which is close to the Q-switching element 7 or the third cavity mirror 10, is plated with a 1000-1100nm high-reflection film, a side surface of the third cavity mirror 10, which is close to the second cavity mirror 9, is plated with a 1000-1100nm high-reflection film, and a side surface of the fourth cavity mirror 17, which is close to the first light-splitting device 14, is plated with a 1000-1100nm high-reflection film and a 500-550nm high-reflection film. A 500-550nm high-reflection film is also plated on the side surface of the first light-splitting device 14, which is close to the fourth cavity mirror 17, and 500-550nm green light is efficiently and stably output to the fourth direction through the side surface of the 500-550nm high-reflection film of the first light-splitting device 14.
The Q-switching element 7 can control the formation of the required power pulses. In particular embodiments, an acousto-optic Q-switched element may be used.
In order to match the different powers generated by the green laser, a green light output with high stability is obtained, the third cavity mirror 10 is fixed on the displacement motor 12, and the third cavity mirror 10 is driven to move in the second direction by moving the position of the displacement motor 12, so that the cavity length is adjustable. Meanwhile, the third cavity mirror 10 moves in the second direction, so that the light path direction of the whole green laser is not changed when the cavity length is adjusted, and the stability of green light output is ensured. The displacement motor 12 is a precision displacement motor, and the displacement motor 12 can be controlled to move through software.
In a preferred scheme, the first cavity mirror 4 is placed at an angle of 60 degrees to the light paths in the first direction and the third direction, and the second cavity mirror 9 is placed at an angle of 45 degrees to the light paths in the first direction and the second direction. The device in second direction and the third direction all sets up in the same one side of first direction, above structure setting can make this application green laser is high integration level, compact structure's laser instrument, simultaneously, when adjusting the chamber length, can not change the light path direction of whole green laser instrument, guarantees green light output's stability.
Further, in order to reduce the energy loss of the light beam and improve the transmittance of the pumping light, the front end face and the rear end face of the collimating lens 2, the focusing lens 3, the first cavity lens 4, the gain medium 5 and the Q-switching element 7 are all plated with 808/880nm antireflection films.
Further, in order to fully and effectively utilize the light beams, the front and rear end surfaces of the gain medium 5, the Q-adjusting element 7 and the first light splitting device 14 are coated with 1000-1100nm antireflection films, and the two sides of the frequency doubling crystal 16 are coated with 1000-1100nm antireflection films and 500-550nm antireflection films.
Further, in order to improve the stability of the overall operation of the device, the gain medium 5 is further provided with a heat sink structure, and the heat sink structure timely conducts out the redundant heat on the gain medium 5.
Further, referring to fig. 2, fig. 2 is a schematic diagram of a second structure of the green laser provided in the present application, a temperature control module 15 is further sleeved outside the frequency doubling crystal 16, and the temperature control module 15 provides a stable temperature environment for the frequency doubling crystal 16, so as to improve the overall working stability of the device.
Further, in order to reduce interference of idler light on resonance, two sides of the first cavity mirror 4 are plated with 500-550nm antireflection films, and two sides of the second cavity mirror 9 and the third cavity mirror 10 are plated with 808/880nm antireflection films.
Further, referring to fig. 3, fig. 3 is a schematic diagram of a third structure of the green laser provided in the present application, so as to make the 500-550nm green light output more efficiently and stably, and obtain purer 500-550nm green light. The green laser, on the basis of the green laser shown in fig. 2, may further include: a second spectroscopic device 20; the second light-splitting device 20 is located at the rear of the first light-splitting device 14 in the fourth direction and is placed at 45 ° to the optical path in the fourth direction, and the second light-splitting device 20 is located at the side close to the third cavity mirror 10. The two sides of the second light-splitting device 20 are plated with 1000-1100nm antireflection films, and one side surface close to the first light-splitting device 14 is plated with 500-550nm high reflection films. The 500-550nm green light is reflected to the 500-550nm high-reflection film of the second light-splitting device 20 by the first light-splitting device 14, and the green light can be output efficiently and stably from the fifth direction. The green laser is high in integration level and compact in structure.
The green laser may further include: the third light-splitting device 21, the third light-splitting device 21 is located at one side of the second light-splitting device 20, which is far away from the first direction, and is placed at 45 degrees to the light path in the fifth direction, the two sides of the third light-splitting device are coated with 1000-1100nm antireflection films, one side surface close to the second light-splitting device 20 is coated with 500-550nm high reflection films, and after the 500-550nm green light is reflected to the second light-splitting device 20 by the first light-splitting device 14, the green light is finally output efficiently and stably from the sixth direction by the 500-550nm high reflection films of the third light-splitting device 21. The green laser is high in integration level and compact in structure.
In order to make the 500-550nm green light output more efficiently and stably, the 500-550nm green light is obtained more pure. The green laser of the present application is provided with a second light-splitting device 20 in order to obtain particularly high quality green light of 500-550 nm. The green laser of the present application is provided with a second spectroscopic device 20 and a third spectroscopic device 21.
Further, referring to fig. 4, fig. 4 is a schematic diagram of a fourth structure of the green laser provided in the present application. The green laser may further include, on the basis of the green laser provided with the second spectroscopic device 20 shown in fig. 3: a first aperture stop 6, a second aperture stop 8, a third aperture stop 13, a fourth aperture stop 19. The first aperture diaphragm 6 is positioned between the gain medium 5 and the Q-switching element 7, and can play a role in limiting modes and blocking stray light on a non-axis to improve the light path stability of the whole system; the second aperture diaphragm 8 is located between the Q-switching element 7 and the second cavity mirror 9, and can filter out diffracted light after passing through the Q-switching element 7; the third aperture diaphragm 13 is located between the first cavity mirror 4 and the first light splitting device 14, and can also play roles in limiting modes and blocking stray light on a non-axis to improve the light path stability of the whole system; the fourth aperture stop 19 is located between the first beam splitter 14 and the second beam splitter 20, so as to limit the output green light and improve the quality of the output green light.
Further, referring to fig. 5, fig. 5 is a schematic diagram of a fifth structure of the green laser provided in the present application. To reduce interference of the idler light on the resonance operation and obtain stable green light output, the green light laser further comprises, based on the green light laser shown in fig. 4: a first idler collector 11, a second idler collector 18, a third idler collector 22, a fourth idler collector 23; the first idler light collector 11 is positioned on one side of the second cavity mirror 9 away from the Q-switching element 7 in the first direction and is mainly used for collecting 808/880nm and 500-550nm idler light; the second idler collector 18 is positioned on one side of the first cavity mirror 4 away from the first light splitting device 14 in the third direction and mainly collects 500-550nm idler light; the third idler collector 22 is positioned at one side of the first cavity mirror 4, which is far away from the first light splitting device 14 in the fourth direction, and mainly collects 1000-1100nm idler light; the fourth idler collector 23 is located at a side of the third spectroscopic device 21 away from the second spectroscopic device 20 in the fifth direction, and mainly collects the 1000-1100nm idler. The first idler collector 11, the second idler collector 18, the third idler collector 22 and the fourth idler collector 23 are all used for absorbing and radiating residual fundamental frequency signal light, and the residual fundamental frequency signal light and incompletely reflected frequency doubling light passing through the devices are annihilated in the idler collectors, so that the system stability and the purity of the output green light are improved.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements is inherent to. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or device that comprises the element. In addition, the parts of the above technical solutions provided in the embodiments of the present application, which are consistent with the implementation principles of the corresponding technical solutions in the prior art, are not described in detail, so that redundant descriptions are avoided.
Specific examples are set forth herein to illustrate the principles and embodiments of the present application, and the description of the examples above is only intended to assist in understanding the methods of the present application and their core ideas. It should be noted that it will be apparent to those skilled in the art that various improvements and modifications can be made to the present application and the various embodiments in the present application can be combined without departing from the principles of the present application, and such improvements, modifications and combinations also fall within the scope of the claims of the present application.
Claims (10)
1. The green laser is characterized by sequentially comprising a pumping source (1), a collimating lens (2), a focusing lens (3), a first cavity mirror (4), a gain medium (5), a Q-switching element (7) and a second cavity mirror (9) in a first direction;
the device comprises a third cavity mirror (10) and a displacement motor (12) in sequence in a second direction, wherein the third cavity mirror (10) is positioned behind the second cavity mirror (9) in the second direction;
the device comprises a first light-splitting device (14), a frequency doubling crystal (16) and a fourth cavity mirror (17) in sequence in a third direction, wherein the first light-splitting device (14) is positioned behind the first cavity mirror (4) in the third direction;
the pumping source (1) is a semiconductor laser, and emits 808nm/880nm infrared light beams, the infrared light beams are output through optical fiber jumpers, and when the light beams collimated by the collimating lens (2) pass through the focusing lens (3), the light beams are converged by the focusing lens (3) so as to be focused in the gain medium (5) after passing through the first cavity mirror (4);
the pump light passing through the first cavity mirror (4) generates stimulated radiation in the gain medium (5) to generate 1000-1100nm infrared light beams, the light beams are reflected to the third cavity mirror (10) through the second cavity mirror (9) and then turned back by the original path of the third cavity mirror (10), then the light beams reflected by the second cavity mirror (9) and the first cavity mirror (4) are turned back by the original path at the fourth cavity mirror (17), and the light beams turned back by the fourth cavity mirror (17) are reflected by the first cavity mirror (4) to complete a loop;
the 1000-1100nm beam in the cavity will have nonlinear effect when passing through the frequency doubling crystal (16) to generate 500-550nm beam;
a side surface of the first cavity mirror (4) close to the gain medium (5) or the first light splitting device (14) is plated with a 1000-1100nm high-reflection film, a side surface of the second cavity mirror (9) close to the Q-switching element (7) or the third cavity mirror (10) is plated with a 1000-1100nm high-reflection film, a side surface of the third cavity mirror (10) close to the second cavity mirror (9) is plated with a 1000-1100nm high-reflection film, a side surface of the fourth cavity mirror (17) close to the first light splitting device (14) is plated with a 1000-1100nm high-reflection film and a 500-550nm high-reflection film, and a side surface of the first light splitting device (14) close to the fourth cavity mirror (17) is also plated with a 500-550nm high-reflection film;
the third cavity mirror (10) is fixed on the displacement motor (12), and the third cavity mirror (10) is driven to move in the second direction by moving the position of the displacement motor (12).
2. Green laser according to claim 1, characterized in that the first cavity mirror (4) is placed at 60 ° to the light path in both the first direction and the third direction, the second cavity mirror (9) is placed at 45 ° to the light path in both the first direction and the second direction, and the devices in both the second direction and the third direction are arranged on the same side of the first direction.
3. The green laser according to claim 1, wherein front and rear end surfaces of the collimator lens (2), the focusing lens (3), the first cavity mirror (4), the gain medium (5) and the Q-switching element (7) are coated with 808/880nm antireflection films.
4. The green laser according to claim 1, wherein the front and rear end surfaces of the gain medium (5), the Q-switching element (7) and the first spectroscopic device (14) are coated with 1000-1100nm antireflection films, and the double surfaces of the frequency doubling crystal (16) are coated with 1000-1100nm and 500-550nm antireflection films.
5. Green laser according to claim 1, characterized in that the outer part of the frequency doubling crystal (16) is sleeved with a temperature control module (15).
6. Green laser according to claim 1, characterized in that the two sides of the first cavity mirror (4) are coated with 500-550nm antireflection film, and the two sides of the second cavity mirror (9) and the third cavity mirror (10) are coated with 808/880nm antireflection film.
7. A green laser according to claim 5, characterized by further comprising a second beam splitter (20), the second beam splitter (20) being located behind the first beam splitter (14) in the fourth direction, being placed at 45 ° to the optical path in the fourth direction, and the second beam splitter (20) being located on the side close to the third cavity mirror (10);
the two sides of the second light-splitting device (20) are plated with 1000-1100nm antireflection films, one side surface close to the first light-splitting device (14) is plated with 500-550nm high-reflection films, and 500-550nm light beams are reflected to the 500-550nm high-reflection films of the second light-splitting device (20) through the first light-splitting device (14) and output from the fifth direction.
8. The green laser of claim 7, further comprising a third light-splitting device (21), wherein the third light-splitting device (21) is located at a side, far away from the first direction, of the second light-splitting device (20) in the rear direction of the fifth direction, and is placed at 45 ° to the optical path in the fifth direction, the two sides of the third light-splitting device are coated with a 1000-1100nm antireflection film, one side, close to the second light-splitting device (20), is coated with a 500-550nm high reflection film, and after the 500-550nm green light is reflected to the second light-splitting device (20) by the first light-splitting device (14), the green light is output from the sixth direction through the 500-550nm high reflection film of the third light-splitting device (21).
9. A green laser as defined in claim 7, further comprising: the first small aperture diaphragm (6), the second small aperture diaphragm (8), the third small aperture diaphragm (13) and the fourth small aperture diaphragm (19);
the first aperture diaphragm (6) is located between the gain medium (5) and the Q-switching element (7), the second aperture diaphragm (8) is located between the Q-switching element (7) and the second cavity mirror (9), the third aperture diaphragm (13) is located between the first cavity mirror (4) and the first light splitting device (14), and the fourth aperture diaphragm (19) is located between the first light splitting device (14) and the second light splitting device (20).
10. A green laser as defined in claim 9, further comprising: a first idler collector (11), a second idler collector (18), a third idler collector (22), a fourth idler collector (23);
the first idler light collector (11) is located on one side, away from the Q-switching element (7), of the second cavity mirror (9) in the first direction, the second idler light collector (18) is located on one side, away from the first light splitting device (14) of the first cavity mirror (4) in the third direction, the third idler light collector (22) is located on one side, away from the first light splitting device (14) of the first cavity mirror (4) in the fourth direction, and the fourth idler light collector (23) is located on one side, away from the second light splitting device (20) of the third light splitting device (21) in the fifth direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223256181.3U CN218976012U (en) | 2022-12-03 | 2022-12-03 | Green light laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223256181.3U CN218976012U (en) | 2022-12-03 | 2022-12-03 | Green light laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218976012U true CN218976012U (en) | 2023-05-05 |
Family
ID=86151092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223256181.3U Active CN218976012U (en) | 2022-12-03 | 2022-12-03 | Green light laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218976012U (en) |
-
2022
- 2022-12-03 CN CN202223256181.3U patent/CN218976012U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112260051B (en) | 1342nm infrared solid laser | |
| CN216850735U (en) | Narrow-linewidth dual-wavelength solid laser | |
| WO2019028679A1 (en) | Frequency-doubling laser and harmonic laser light generating method | |
| CN103872576A (en) | Gas Raman laser with nearly-concentric stable cavity | |
| CN108988117B (en) | Laser amplifier based on polarization synthesis laser gain | |
| CN101483317A (en) | Pump mode for semiconductor laser | |
| CN111478175A (en) | Laser energy amplifier | |
| CN218976012U (en) | Green light laser | |
| CN218976013U (en) | Ultraviolet laser | |
| CN112421361A (en) | Ultraviolet ultrafast laser for wood processing | |
| CN108512027B (en) | Annular cavity amplifying device for picosecond seed laser pulse | |
| CN110120622A (en) | A kind of 10 femtosecond Ti:Sapphire oscillator of the Asia that laser diode directly pumps | |
| CN115981015A (en) | Single-period relativistic vortex light generation system and method based on multi-slice post-compression | |
| CN116093725A (en) | Ultraviolet laser | |
| CN115799962A (en) | Green laser | |
| CN212725943U (en) | High-coupling-efficiency kilowatt-level optical fiber output nanosecond laser with arbitrarily adjustable power | |
| CN112636146B (en) | High-power mode-locked disc laser | |
| CN111585159B (en) | Device and method for guaranteeing frequency stability of microchip laser | |
| CN103972786A (en) | Amplifier structure and laser device | |
| CN218070536U (en) | High-power nanosecond intracavity quintupling frequency laser | |
| CN112134132A (en) | Human eye safe laser based on bonding technology and divergence optimization method | |
| CN221126529U (en) | End-pumped multichannel laser amplification device | |
| CN111244734A (en) | Mid-infrared single-mode laser | |
| CN218549065U (en) | Ultraviolet fiber laser | |
| CN220754000U (en) | Low-order microchip vortex rotation laser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |