CN112803233A - Medium infrared laser generation method based on multi-order diamond Raman and tunable medium infrared laser - Google Patents
Medium infrared laser generation method based on multi-order diamond Raman and tunable medium infrared laser Download PDFInfo
- Publication number
- CN112803233A CN112803233A CN202011624870.8A CN202011624870A CN112803233A CN 112803233 A CN112803233 A CN 112803233A CN 202011624870 A CN202011624870 A CN 202011624870A CN 112803233 A CN112803233 A CN 112803233A
- Authority
- CN
- China
- Prior art keywords
- raman
- tunable
- diamond
- laser
- mid
- 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
Images
Classifications
-
- 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
- H01S3/106—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
- H01S3/108—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using non-linear optical devices, e.g. exhibiting Brillouin or Raman scattering
- H01S3/1086—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using non-linear optical devices, e.g. exhibiting Brillouin or Raman scattering using scattering effects, e.g. Raman or Brillouin effect
Abstract
The invention belongs to the technical field of laser, and discloses a multi-order diamond Raman based mid-infrared laser generation method and a tunable mid-infrared laser, wherein the mid-infrared laser generation method comprises the following steps: the pump light output by the tunable pump source is collimated through a first focusing lens; then the collimated pump light is incident to a diamond Raman conversion system consisting of an input lens, a diamond, an output lens and a mode matching lens, and wavelength expansion is realized through multi-stage cascade Raman scattering to generate middle infrared tunable Raman laser; the laser has high power, high conversion efficiency, excellent light beam quality and continuously tunable output light.
Description
Technical Field
The invention belongs to the technical field of laser, and particularly relates to a multi-order diamond Raman based mid-infrared laser generation method and a tunable mid-infrared laser.
Background
In the mid-infrared band with a wavelength of 2-20 μm, the photon energy corresponds to the fundamental transition frequency of the vibrational energy level of the molecule, and therefore the molecule produces a strong absorption of the incident photons. Depending on the application range, the mid-IR spectrum can be divided into two parts, a radical frequency region with a wavelength of 2-7.5 μm and a molecular fingerprint region with a wavelength of 7.5-15 μm. Wherein, the laser wavelength with the wavelength of 2-7.5 μm covers the atmospheric window and the vibration spectrum of a plurality of molecules, and has important application prospect in the fields of medical treatment, spectrum detection, mid-infrared countermeasure, special material processing and the like. In addition, mid-infrared lasers with wavelengths greater than 2.45 μm are also of great importance in the field of non-metal processing, for example welding of plastic materials that are transparent to visible light.
In recent years, with the rapid increase of the application requirements of mid-infrared laser with different wave bands, obtaining a high-power and high-beam-quality mid-infrared tunable laser becomes one of the research hotspots of novel laser technology. The main methods and devices for generating mid-infrared tunable laser currently include: (1) a rare earth or transition metal ion doped gain medium laser; (2) a semiconductor quantum cascade laser; (3) an Optical Parametric Oscillator (OPO). Although the laser technology has been greatly developed, the output power of the mid-infrared tunable laser based on the diamond stimulated raman scattering effect in the prior art is generally small; the stokes order of excitation cannot break through the second order, so that the final output wavelength is limited in a narrow waveband range, and a laser with high power larger than 1W, wide bandwidth with spectral bandwidth exceeding 1 μm and high beam quality in middle infrared different wavebands cannot be realized.
Disclosure of Invention
Aiming at the problems that the output power of a mid-infrared tunable laser based on a diamond stimulated Raman scattering effect in the prior art is generally low; the excited Stokes light order can not break through the second order, so that the final output wavelength is limited in a narrower waveband range, and the problems of high power larger than 1W, wide bandwidth with the spectral bandwidth exceeding 1 mu m, lasers with high beam quality and different mid-infrared wavebands can not be realized; the invention provides a multi-order diamond Raman based mid-infrared laser generation method and a tunable mid-infrared laser, which solve the problems and have the outstanding advantages of high power, high conversion efficiency, excellent beam quality, continuously tunable output light and the like.
The invention is realized by that, the invention provides a middle infrared laser generating method based on multi-order diamond Raman, which comprises the following steps,
the pump light output by the tunable pump source is collimated through a first focusing lens;
and then the collimated pump light is incident to a diamond Raman conversion system consisting of an input lens, a diamond, an output lens and a mode matching lens, and the wavelength is expanded through multi-order cascade Raman scattering to generate middle infrared tunable Raman laser.
Furthermore, the pump light output by the tunable pump source sequentially passes through the phase modulator, the pump light amplifier composed of the isolator, the laser diode, the coupling system and the gain medium for power amplification, and then is collimated through the first focusing mirror.
Further, the diamond Raman conversion system is set to be a multi-diamond stimulated Raman scattering structure comprising at least two Raman resonant cavities, then the collimated pump light is incident to the diamond Raman conversion system, and the wavelength is expanded through multi-diamond cascade stimulated Raman scattering or multi-order cascade stimulated Raman scattering, so that middle infrared tunable Raman laser is generated.
Furthermore, the pump wavelength of the tunable pump source is tuned, so that the output pump wavelength is changed, and the output mid-infrared Raman laser can be tuned.
The tunable intermediate infrared laser based on the multi-order diamond Raman comprises a tunable pump source with the same optical axis, a first focusing mirror and a diamond Raman conversion system, wherein the diamond Raman conversion system comprises an input mirror, a diamond, an output mirror and a mode matching mirror which are sequentially arranged with the same optical axis along the propagation direction of a light beam.
Further, the diamond raman conversion system is a multi-diamond stimulated raman scattering structure comprising at least two raman resonant cavities.
Furthermore, a phase modulator and a pump optical amplifier composed of an isolator, a laser diode, a coupling system and a gain medium are sequentially and coaxially arranged between the tunable pump source and the first focusing mirror along the propagation direction of the light beam.
Further, the gain medium is a medium including Nd doped3+Er doped3+Doped Tm3+And doped with Cr3+Ho doping3+And Yb doping3+And doped with Pr3+Single ion doped or multiple ion doped optical fibers, glass, crystal or ceramic.
Further, the tunable pump source is a tunable solid laser including a gain medium, or a tunable gas laser, or a tunable dye laser.
Further, the mode matching mirror comprises a second focusing mirror and a half-wave plate, the second focusing mirror and the half-wave plate are arranged along the same optical axis in the light beam propagation direction, the second focusing mirror is used for adjusting the pump light mode of the tunable pump source to be matched with the Raman resonant cavity mode of the diamond Raman conversion system, and the half-wave plate is used for adjusting the polarization direction of the pump light to be matched with the Raman gain direction of the diamond.
Further, the laser diode is a single laser diode tube coupled by optical fibers, or the laser diode is composed of at least two single laser diode tube arrays coupled by optical fibers.
The invention has the following beneficial effects:
the multi-order diamond Raman based mid-infrared laser generation method and the tunable mid-infrared laser have the following advantages that: (1) the whole system has the outstanding advantages of high power, high conversion efficiency, excellent light beam quality, continuous tunable output mid-infrared band light and the like; (2) the adopted diamond has the characteristics of high temperature load and stable Raman wavelength conversion, so that the quality of the output mid-infrared Raman laser beam is more excellent; (3) the laser diode adopts a tunable pumping source, can be combined with the laser diode with high power and high beam quality to carry out beam combination pumping, outputs tunable mid-infrared Raman laser, and has important significance for the application of the diamond Raman laser in different fields; the method has good application prospect in the fields of medical treatment, spectrum detection, infrared countermeasure, special material processing and the like.
Drawings
FIG. 1 is a schematic structural diagram of one embodiment of a tunable mid-IR laser based on multi-step diamond Raman of the present invention;
FIG. 2 is a schematic diagram of another embodiment of a tunable mid-IR laser based on multi-step diamond Raman according to the present invention;
FIG. 3 is a schematic diagram of a specific structure of a pump light amplifier in the tunable intermediate infrared laser based on multi-order diamond Raman according to the present invention;
fig. 4 is a schematic structural diagram of a diamond raman conversion system in the tunable mid-infrared laser based on multi-step diamond raman according to the present invention.
In the figure, 1 is a tunable pump source, 2 is a focusing mirror, 3 is a diamond raman conversion system, 301 is an input mirror, 302 is diamond, 303 is an output mirror, 304 is a mode matching mirror, 4 is a phase modulator, 5 is a pump optical amplifier, 501 is an isolator, 502 is a laser diode, 503 is a coupling system, and 504 is a gain medium.
Detailed Description
The following description of the embodiments of the present invention refers to the accompanying drawings and examples:
example 1
The method for generating the mid-infrared laser based on the multi-order diamond Raman comprises the following steps of collimating pump light output by a tunable pump source 1 through a first focusing mirror 2 as shown in figures 1 and 2;
and then the collimated pump light is incident to a diamond Raman conversion system 3 formed by an input mirror 301, a diamond 302, an output mirror 303 and a mode matching mirror 304, wavelength expansion is realized through multi-order cascaded Raman scattering, and mid-infrared tunable Raman laser is generated.
It should be noted that the collimated pump light may pass through a primary diamond raman conversion system 3, as shown in fig. 1; or the collimated pump light may be passed through a two-stage or more than two-stage diamond raman conversion system 3 as described in embodiment 2, as shown in fig. 2.
It should be further noted that, when the power of the pump light output by the tunable pump source 1 cannot meet the requirement, the pump light output by the tunable pump source 1 may be subjected to power amplification by the phase modulator 4 and the pump light amplifier 5 as described in embodiment 2, as shown in fig. 3.
Example 2
In the method for generating multi-order diamond raman-based mid-infrared laser according to embodiment 1, as shown in fig. 3 and 4, the pump light output by the tunable pump source 1 sequentially passes through the phase modulator 4, the pump light amplifier 5 composed of the isolator 501, the laser diode 502, the coupling system 503 and the gain medium 504 for power amplification, and then is collimated by the first focusing mirror 2.
Further, the diamond raman conversion system 3 is set to be a multi-diamond stimulated raman scattering structure including at least two raman resonant cavities, then the collimated pump light is incident to the diamond raman conversion system 3, and through multi-diamond cascade stimulated raman scattering or multi-order cascade stimulated raman scattering, wavelength expansion is achieved, and mid-infrared tunable raman laser is generated.
Further, the pump wavelength of the tunable pump source 1 is tuned, so that the wavelength of the output pump light changes, and the wavelength change of the output mid-infrared raman laser is realized. Namely, the output mid-infrared Raman laser can be tuned.
Example 3
A tunable mid-infrared laser based on multi-order diamond raman, which is used to implement the mid-infrared laser generating method based on multi-order diamond raman described in embodiment 1 or embodiment 2, as shown in fig. 1 and fig. 2, includes a tunable pump source 1, a first focusing mirror 2, and a diamond raman conversion system 3, which are sequentially arranged along a beam propagation direction with an optical axis, where the diamond raman conversion system 3 includes an input mirror 301, a diamond 302, an output mirror 303, and a mode matching mirror 304 with the optical axis.
It should be noted that the diamond raman conversion system 3 may be a first-order diamond raman conversion system 3, as shown in fig. 1; also as described in example 4, the diamond raman conversion system 3 is a multi-diamond stimulated raman scattering structure comprising at least two raman cavities, as shown in fig. 2.
It should be further noted that, when the power of the pump light output by the tunable pump source 1 cannot meet the requirement, the pump light output by the tunable pump source 1 may be subjected to power amplification by the phase modulator 4 and the pump light amplifier 5 as described in embodiment 4, as shown in fig. 3.
Example 4
The tunable mid-infrared laser based on multi-step diamond raman of embodiment 3, further, as shown in fig. 3 and 4, a phase modulator 4 and a pump optical amplifier 5 composed of an isolator 501, a laser diode 502, a coupling system 503 and a gain medium 504 are sequentially and coaxially arranged along the propagation direction of the light beam between the tunable pump source 1 and the first focusing mirror 2.
Further, the gain medium 504 is a film including Nd-doped3+(Neodymium ion) Er-doped3+(erbium ion) doped Tm3+(Thulium ion) and Cr-doped3+(chromium ion) Ho-doped3+(holmium ion) and Yb-doped3+(ytterbium ion) doped Pr3+Single-ion doped or multi-ion doped optical fibers of (praseodymium ions), glass, crystals or ceramics.
Further, the tunable pump source 1 is a tunable solid laser, or a tunable gas laser, or a tunable dye laser including the gain medium 504.
Further, the mode matching mirror 304 includes a second focusing mirror disposed along the optical axis along the propagation direction of the light beam for adjusting the pump light mode of the tunable pump source 1 to match the raman cavity mode of the diamond raman conversion system 3, and a half-wave plate for adjusting the polarization direction of the pump light to match the raman gain direction of the diamond.
Further, the laser diode 502 is a single laser diode tube coupled out by an optical fiber, or the laser diode 502 is formed by an array of at least two single laser diodes coupled out by an optical fiber.
The mid-infrared laser generation method based on multi-order diamond Raman and the tunable mid-infrared laser of the embodiment can be obtained through quantitative analysisThe input light scattered to another wavelength with the same incident wavelength, such as 1064nm, is incident to the diamond 302, and output raman light at 1240nm is obtained through first-order stimulated raman scattering; obtaining 1485nm output Raman light through second-order stimulated Raman scattering; the output Raman light of 1851nm is obtained by third-order stimulated Raman scattering. The Raman frequency shift amount of the diamond 302 is 1332cm-1Therefore, a specific numerical value of the wavelength of the output light can be obtained by the formula (1).
In the formula (1), lambdaFRepresenting the wavelength (in cm) of the input light, i.e. the fundamental wavelength, lambdaSRepresenting the output light wavelength (in cm), i.e. the stokes light wavelength. n represents the order of stimulated Raman scattering, 1332 is the Raman frequency shift of diamond, and the unit is cm-1. By the formula (1), the Raman output wavelengths of the diamond 302 corresponding to different optical wavelengths can be obtained.
In addition, the pump light power required for each Stokes light order and the total power (unit: GW or W) of the required pump light in the external cavity Raman laser can be approximately obtained by the formula (2).
In the formula (2), T represents the output coupling ratio of corresponding Stokes light in the Raman resonant cavity, alpha represents the round-trip linear loss of the Stokes light in the Raman resonant cavity, L represents the length of a Raman medium, and gsDenotes the Raman gain coefficient, wpRepresenting the pump spot radius. The primary Raman scattering light of 1240nm is obtained through 1064nm primary frequency light, and the power of the primary frequency light is required to be 12.44W; obtaining 1485nm second-order Stokes light, wherein the total power of fundamental frequency light is required to be 34.02W; to obtain 1851nm third-order Stokes light, total power 197.02W of fundamental frequency light is required. If higher-order Raman scattering light is required, up to the mid-infrared band, the required fundamental frequency light power is also increased correspondingly.
Specifically, the tunable pump source 1 is sequentially connected to the phase modulator 4, the isolator 501, and the coupling system 503, and the laser diode 502 is coupled into the optical path through the coupling system 503; the coupling system 503 is connected with the gain medium 504, the focusing mirror 2, the input mirror 301, the diamond 302, the output mirror 303 and the mode matching mirror 304 in sequence. After passing through the phase modulator 4, the pump light of the tunable pump source 1 is subjected to power amplification by a pump light amplifier 5 composed of the isolator 501, the laser diode 502, the coupling system 503 and the gain medium 504, and then is incident to a diamond raman conversion system 5 composed of an input mirror 301, a diamond 302, an output mirror 303 and a mode matching mirror 304 through a first focusing mirror 2 after amplification, and wavelength expansion is realized through multi-order cascade stimulated raman scattering or multi-diamond 302 cascade stimulated raman scattering, thereby generating middle infrared tunable raman laser. By tuning the pumping wavelength of the tunable pumping source 1, the wavelength of the output pumping light changes within a certain range, and the wavelength of the finally output mid-infrared raman laser also changes correspondingly. That is, the diamond raman conversion system 3 cascade may be configured as at least two stages of raman conversion systems, and the raman conversion systems after the second stage, such as the second stage raman conversion system, the third stage raman conversion system, and the like, are composed of the diamond raman conversion system 3 composed of the input mirror 301, the diamond 302, the output mirror 303, and the mode matching mirror 304.
More specifically, the half-wave plate is used for adjusting the polarization direction of the pump light to be matched with the optimal Raman gain direction of the diamond. The laser diode 502 comprises a single or multiple fiber-coupled-out laser diode single tube or array.
In the method for generating mid-infrared laser based on multi-order diamond raman according to any of the embodiments, the pump wavelength of the tunable pump source 1 is further tuned, so that the wavelength of the output pump light changes, and the wavelength change of the output mid-infrared tunable raman laser is realized.
It should be noted that the diamond raman conversion system 3 may be a mode matching mirror 304, an input mirror 301, a single diamond 302 and an output mirror 303 which are sequentially arranged along the light propagation direction along the same optical axis; it is also possible to have a combined structure of a plurality of sets of the input mirror 301, the diamond 302, the output mirror 303, and the mode matching mirror 304 arranged in this order along the optical axis in the light propagation direction.
More specifically, in the multi-order diamond raman-based mid-infrared laser generation method and the tunable mid-infrared laser according to the above embodiments, the phase modulator 4 is configured to suppress a Stimulated Brillouin Scattering (SBS) phenomenon generated during power amplification of the tunable pump source 1. When the pumping light amplifier 5 performs the power amplification process of the seed light, the multi-stage cascade power amplification can be performed, so that the seed light power is effectively amplified. The isolator 501 is used for effectively isolating the back reflection light in the light path, and the safe and stable operation of the whole system is ensured. The laser diode 502 may be composed of a plurality of single tubes or arrays of free space or fiber coupled high-power laser diodes, and each laser diode 502 may couple the pump light in the laser diode 502 into the optical path through a coupling system, thereby achieving effective pumping. The gain medium 504 is used for power amplification of the seed light. The diamond Raman conversion system 3 is arranged in a cascade mode, namely comprises a first-stage Raman conversion system, a second-stage Raman conversion system, a third-stage Raman conversion system and the like, so that effective expansion of wavelength is achieved, and mid-infrared Raman laser is generated. The diamond 302 may include natural diamond such as various kinds of diamond 302, e.g., synthetic single crystal diamond, synthetic polycrystalline diamond, synthetic nano-diamond, etc., by CVD (chemical vapor deposition) technique and HTHP (high temperature high pressure) technique.
Although the preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.
Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, but only by the scope of the appended claims.
Claims (11)
1. The mid-infrared laser generation method based on multi-order diamond Raman is characterized by comprising the following steps,
the method comprises the following steps that pump light output by a tunable pump source (1) is collimated through a first focusing mirror (2);
and then the collimated pump light is incident to a diamond Raman conversion system (3) formed by an input mirror (301), a diamond (302), an output mirror (303) and a mode matching mirror (304), and wavelength expansion is realized through multi-stage cascade Raman scattering, so that middle infrared tunable Raman laser is generated.
2. The mid-infrared laser generation method based on multi-order diamond Raman as claimed in claim 1, characterized in that the pump light outputted by the tunable pump source (1) passes through the phase modulator (4) in sequence, and is collimated by the first focusing mirror (2) after being power amplified by the pump light amplifier (5) composed of the isolator (501), the laser diode (502), the coupling system (503) and the gain medium (504).
3. The method for generating mid-infrared laser based on multi-order diamond Raman as claimed in claim 1 or 2, wherein the diamond Raman conversion system (3) is configured as a multi-diamond stimulated Raman scattering structure comprising at least two Raman resonant cavities, and then the collimated pump light is incident to the diamond Raman conversion system (3) and passes through multi-diamond cascaded stimulated Raman scattering or multi-order cascaded stimulated Raman scattering to realize wavelength expansion and generate mid-infrared tunable Raman laser.
4. The tunable mid-infrared laser generation method based on multi-order diamond Raman as claimed in claim 1 or 2, characterized in that the pump wavelength of the tunable pump source (1) is tuned so that the output pump wavelength is changed to realize the tunable output mid-infrared Raman laser.
5. Tunable mid-infrared laser based on multi-order diamond Raman, which is used for realizing the mid-infrared laser generation method based on multi-order diamond Raman as described in any one of claims 1-4, and is characterized by comprising a tunable pump source (1), a first focusing mirror (2) and a diamond Raman conversion system (3) which are sequentially arranged along the propagation direction of a light beam along the same optical axis, wherein the diamond Raman conversion system (3) comprises an input mirror (301), a diamond (302), an output mirror (303) and a mode matching mirror (304) along the same optical axis.
6. The tunable mid-infrared laser based on multi-order diamond Raman according to claim 5, wherein the diamond Raman conversion system (3) is a multi-diamond stimulated Raman scattering structure comprising at least two Raman resonant cavities.
7. The tunable mid-infrared laser based on multi-step diamond Raman according to claim 5 or 6, characterized in that a phase modulator (4) and a pump optical amplifier (5) composed of an isolator (501), a laser diode (502), a coupling system (503) and a gain medium (504) are sequentially arranged coaxially along the propagation direction of the light beam between the tunable pump source (1) and the first focusing mirror (2).
8. The tunable mid-IR laser based on multi-step diamond Raman spectroscopy according to claim 5 or 6, wherein the gain medium (504) is a laser including Nd-doped3+Er doped3+Doped Tm3+And doped with Cr3+Ho doping3+And Yb doping3+And doped with Pr3+Single ion doped or multiple ion doped optical fibers, glass, crystal or ceramic.
9. The tunable mid-infrared laser based on multi-step diamond raman according to claim 8, characterized in that the tunable pump source (1) is a tunable solid laser, or a tunable gas laser, or a tunable dye laser comprising a gain medium (504).
10. The tunable mid-infrared laser based on multi-order diamond Raman according to claim 5 or 6, wherein the mode matching mirror (304) comprises a second focusing mirror disposed along the optical axis along the propagation direction of the beam for adjusting the pump light mode of the tunable pump source (1) to match the Raman resonator mode of the diamond Raman conversion system (3) and a half-wave plate for adjusting the polarization direction of the pump light to match the Raman gain direction of the diamond.
11. The tunable mid-infrared laser based on multi-step diamond Raman according to claim 7, wherein the laser diode (502) is a fiber-coupled output laser diode single tube, or the laser diode (502) is composed of at least two fiber-coupled output laser diode single tube arrays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011624870.8A CN112803233A (en) | 2020-12-31 | 2020-12-31 | Medium infrared laser generation method based on multi-order diamond Raman and tunable medium infrared laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011624870.8A CN112803233A (en) | 2020-12-31 | 2020-12-31 | Medium infrared laser generation method based on multi-order diamond Raman and tunable medium infrared laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112803233A true CN112803233A (en) | 2021-05-14 |
Family
ID=75807645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011624870.8A Pending CN112803233A (en) | 2020-12-31 | 2020-12-31 | Medium infrared laser generation method based on multi-order diamond Raman and tunable medium infrared laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112803233A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113288418A (en) * | 2021-05-22 | 2021-08-24 | 中国科学院理化技术研究所 | Laser scalpel with tunable wavelength |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664339A (en) * | 2012-05-16 | 2012-09-12 | 烟台大学 | Multi-wavelength two-stage solid Raman frequency shifter |
| US20130043392A1 (en) * | 2010-02-24 | 2013-02-21 | Richard Paul Mildren | Mid to far infrared diamond raman laser systems and methods |
| US20130215912A1 (en) * | 2012-02-16 | 2013-08-22 | Raytheon Company | Multi-media raman resonators and related system and method |
| CN106374328A (en) * | 2016-11-18 | 2017-02-01 | 合肥工业大学 | Medium-infrared fiber laser system covering any wavelength in band between 2 and 10 microns based on soft glass fiber |
| CN110233417A (en) * | 2019-05-28 | 2019-09-13 | 中国科学院理化技术研究所 | A kind of device improving diamond raman laser efficiency |
-
2020
- 2020-12-31 CN CN202011624870.8A patent/CN112803233A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130043392A1 (en) * | 2010-02-24 | 2013-02-21 | Richard Paul Mildren | Mid to far infrared diamond raman laser systems and methods |
| US20130215912A1 (en) * | 2012-02-16 | 2013-08-22 | Raytheon Company | Multi-media raman resonators and related system and method |
| CN102664339A (en) * | 2012-05-16 | 2012-09-12 | 烟台大学 | Multi-wavelength two-stage solid Raman frequency shifter |
| CN106374328A (en) * | 2016-11-18 | 2017-02-01 | 合肥工业大学 | Medium-infrared fiber laser system covering any wavelength in band between 2 and 10 microns based on soft glass fiber |
| CN110233417A (en) * | 2019-05-28 | 2019-09-13 | 中国科学院理化技术研究所 | A kind of device improving diamond raman laser efficiency |
Non-Patent Citations (1)
| Title |
|---|
| 王廷云: "《特种光纤与光纤通信》", 31 January 2016 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113288418A (en) * | 2021-05-22 | 2021-08-24 | 中国科学院理化技术研究所 | Laser scalpel with tunable wavelength |
| CN113288418B (en) * | 2021-05-22 | 2022-11-04 | 中国科学院理化技术研究所 | Laser scalpel with tunable wavelength |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7113524B2 (en) | Narrow band high power fibre lasers with extended wavelength coverage | |
| US6625180B2 (en) | Raman fiber laser | |
| US5832006A (en) | Phased array Raman laser amplifier and operating method therefor | |
| US20050190809A1 (en) | Ultraviolet, narrow linewidth laser system | |
| CN114256723A (en) | 2-5 mu m waveband cascade soft glass fiber mid-infrared broad spectrum laser | |
| CN113794094A (en) | High-power all-fiber mid-infrared band wide-spectrum light source based on fluoride fiber | |
| CN111541140A (en) | Yb-YAG ultrashort pulse laser amplifier based on brightness cascade pump | |
| CN214069078U (en) | Tunable intermediate infrared laser based on multi-order diamond Raman | |
| CN112803233A (en) | Medium infrared laser generation method based on multi-order diamond Raman and tunable medium infrared laser | |
| WO2020226912A1 (en) | Single crystal optical parametric amplifier | |
| CN108418090B (en) | Intermediate infrared laser | |
| CN113381279B (en) | Narrow-linewidth ultraviolet Raman laser | |
| US7978738B2 (en) | OPO laser mid-IR wavelength converter | |
| CN110797740B (en) | Intermediate infrared laser based on difference frequency of alkali metal laser | |
| CN212626508U (en) | 3-micron optical fiber gas laser with all-optical fiber structure | |
| JP4505462B2 (en) | Monolithic solid state laser device pumped by a laser diode and method of using this device | |
| CN109256664B (en) | Intermediate infrared fluoride optical fiber mode-locked laser based on germanium dispersion management | |
| CN112670810A (en) | Wide tuning 3-micron waveband intermediate infrared laser of cascade pump | |
| RU2300834C2 (en) | Compact continuous solid-state fcd laser (alternatives) | |
| CN111864512A (en) | 2.33 μm laser light source and 4.66 μm waveband fiber gas laser cascaded by two gases | |
| CN117543319B (en) | Mid-infrared rear spectrum enhancement broadband laser system | |
| CN212626507U (en) | 4-micron-waveband laser fiber gas laser generating device | |
| Chen et al. | A cascaded Brillouin laser using diamond Raman conversion | |
| Liang et al. | Mid‑infrared 2.8 μm tunable lasing based on erbium‑doped fluoride fiber | |
| CN111864522A (en) | 4-micron-band laser generation method and optical fiber gas laser generation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210514 |