WO2007013134A1 - 半導体レーザ励起固体レーザ装置 - Google Patents
半導体レーザ励起固体レーザ装置 Download PDFInfo
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- WO2007013134A1 WO2007013134A1 PCT/JP2005/013610 JP2005013610W WO2007013134A1 WO 2007013134 A1 WO2007013134 A1 WO 2007013134A1 JP 2005013610 W JP2005013610 W JP 2005013610W WO 2007013134 A1 WO2007013134 A1 WO 2007013134A1
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- H—ELECTRICITY
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- 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
- H01S3/0619—Coatings, e.g. AR, HR, passivation layer
- H01S3/0621—Coatings on the end-faces, e.g. input/output surfaces of the laser light
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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
- H01S3/106—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
- H01S3/109—Frequency multiplication, e.g. harmonic generation
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- H—ELECTRICITY
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- 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
- H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
- H01S3/131—Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the active medium, e.g. by controlling the processes or apparatus for excitation
- H01S3/1312—Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the active medium, e.g. by controlling the processes or apparatus for excitation by controlling the optical pumping
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- H—ELECTRICITY
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- 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
- H01S3/0602—Crystal lasers or glass lasers
- H01S3/0604—Crystal lasers or glass lasers in the form of a plate or disc
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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
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/08018—Mode suppression
- H01S3/08022—Longitudinal modes
- H01S3/08031—Single-mode emission
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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
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/0941—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a laser diode
- H01S3/09415—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a laser diode the pumping beam being parallel to the lasing mode of the pumped medium, e.g. end-pumping
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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
- H01S3/102—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the active medium, e.g. by controlling the processes or apparatus for excitation
- H01S3/1022—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the active medium, e.g. by controlling the processes or apparatus for excitation by controlling the optical pumping
- H01S3/1024—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the active medium, e.g. by controlling the processes or apparatus for excitation by controlling the optical pumping for pulse generation
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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
- H01S3/102—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the active medium, e.g. by controlling the processes or apparatus for excitation
- H01S3/1028—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the active medium, e.g. by controlling the processes or apparatus for excitation by controlling the temperature
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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
- H01S3/106—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
- H01S3/1062—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 a controlled passive interferometer, e.g. a Fabry-Perot etalon
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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
- H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
- H01S3/16—Solid materials
- H01S3/1601—Solid materials characterised by an active (lasing) ion
- H01S3/1603—Solid materials characterised by an active (lasing) ion rare earth
- H01S3/1611—Solid materials characterised by an active (lasing) ion rare earth neodymium
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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
- H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
- H01S3/16—Solid materials
- H01S3/163—Solid materials characterised by a crystal matrix
- H01S3/164—Solid materials characterised by a crystal matrix garnet
- H01S3/1643—YAG
Definitions
- the present invention relates to a semiconductor laser pumped solid-state laser device, and more specifically, a semiconductor laser pumped solid-state laser device capable of realizing single-mode oscillation near 1064.4 nm with a configuration without inserting an etalon or the like into an optical resonator. About.
- Patent Document 1 Japanese Patent Application Laid-Open No. 64-31485
- Patent Document 2 Japanese Patent No. 3509598
- Non-patent literature l J.Opt.Soc.Am.B.Vol.3, No.9, P1175 (1986)
- Non-Patent Document 2 Lasers (University Science Books, Mill Valley, CA. 1986), P524 Invention Disclosure
- Nd 1064.4 ⁇ utilizing transition between energy levels to the 4 F by YAG Single mode oscillation in the vicinity of m is desired. However, each energy level is subdivided into the Stark level, which is a sub-level.
- an object of the present invention is a configuration in which an etalon or the like is not inserted into an optical resonator.
- An object of the present invention is to provide a semiconductor laser pumped solid-state laser device capable of realizing single mode oscillation in the vicinity of 4 nm.
- the present invention provides a nonlinear optical crystal contained in an optical resonator including a solid-state laser medium pumped by a laser beam output by a semiconductor laser power, and oscillates in the optical resonator.
- the laser device configured to output a harmonic of a fundamental wave to the outside, detect a part of the harmonic, and control a driving current of the semiconductor laser so that the harmonic output becomes constant.
- the laser medium is Nd: YAG
- the Nd: YAG has two end faces perpendicular to the optical axis
- the end face of the Nd: YAG that is the end of the optical resonator is changed from level 4 F to level.
- HR coating is applied to the light generated by the transition of
- the Nd: YAG functions as a band reflection mirror due to the interference of the reflected light at both end faces, and has a maximum reflectivity for light generated at the transition from sublevel R to sublevel Y.
- a solid state laser device is provided.
- the HR coating Since the HR coating is applied, oscillation in the 1.32 ⁇ m band can be suppressed and only the 1.06 ⁇ m band can be selectively oscillated.
- the end surface of the Nd: YAG on the semiconductor laser side may be uncoated or may be a coat having a certain reflectance.
- Nd: YAG functions as a band reflecting mirror and has wavelength selectivity. For this reason, the thickness of Nd: YAG is controlled, for example, for light generated at the transition from sublevel R to sublevel Y.
- the sub-level R If the light is tuned so that the reflectance shows a minimum value, the sub-level R or
- Light generated at the transition from sublevel R to sublevel Y is near 1064.4 nm.
- the present invention provides the semiconductor laser pumped solid-state laser device according to the first aspect, wherein the Nd: YAG has a reflection peak near 1064.4 nm and Provided is a semiconductor laser pumped solid-state laser device characterized by having a thickness in the light transmission direction such that no reflection peak exists in the vicinity of 1.8 nm.
- the HR coat for the wavelength near 1064.4 nm is applied to the end face which is the end of the Nd: YAG optical resonator, oscillation in the 1.32 m band is suppressed. Only 1.06 m band can be selectively oscillated. Note that the end face of the Nd: YAG semiconductor laser side may be uncoated or may be a coat having a certain reflectance.
- Nd: YAG functions as a band reflecting mirror and has wavelength selectivity.
- the thickness of Nd: YAG is controlled so that, for example, a reflection peak comes at 1064.4 nm ⁇ 0.35 nm (shaded part a in FIG. 2) and 1061.8 nm ⁇ 0.2 nm (shaded part b in FIG. 2).
- the oscillation line near 1061.8 nm can be suppressed and single mode oscillation near 1064.4 nm can be realized.
- the present invention provides the semiconductor laser pumped solid laser device according to the first or second aspect, wherein the thickness of the Nd: YAG in the light transmission direction is 0.13 to 0.22 mm, 0.2o to 0.33 mm. , 0.d9mm to 0.44mm, 0.5imm to 0.55mm, 0.65mm to 0.6 / 'mm, a semiconductor laser pumped solid-state laser device is provided.
- Figure 3 shows the relationship between FSR (Free Spectral Range) and reflection peak wavelength in the reflection characteristics of Nd: YAG.
- the radial line in Fig. 3 shows the wavelength of the Nd: YAG reflection peak with respect to the FSR.
- Nd: YAG is temperature-tuned so that one of the reflection peaks is matched to the wavelength of about 1064.4 nm, which is the subject of the present invention, regardless of FSR.
- the horizontal region a in FIG. 3 is a region near 1064.4 nm, and the horizontal region j8 is a region near 10 61.8 nm.
- the vertical regions A, B, C, D, and E indicate the FSR ranges where the reflection peak of Nd: YAG exists in the region a and the reflection peak does not come in the region b.
- the FSR value force is 0.467 to 0.480, 0.56 to 0.60, 0.7 0 to 0.80, 0.933 to 1.20, 1.4 to 2.4.
- Single mode oscillation near nm can be realized.
- these FSR values be Nd: Y In terms of AG thickness, they are 0.13 to 0.22mm, 0.26 to 0.33mm, 0.39 to 0.44mm, 0.51 to 0.55mm, and 0.65 to 0.67mm.
- the present invention is characterized in that in the semiconductor laser pumped solid-state laser device according to any one of the first to third aspects, means for changing the temperature of the Nd: YAG is provided.
- a semiconductor laser excitation solid-state laser device is provided.
- Nd on the order of lOnm It is necessary to control the thickness of YAG. This may be done with a polishing force. However, such high-precision polishing power is a factor in increasing costs.
- the semiconductor laser pumped solid-state laser device does not require accuracy up to the lOnm order in the polishing process, and variations in thickness due to the polishing force can be obtained by changing the temperature of Nd: YAG. Absorb. As a result, it is possible to avoid the cost increase due to the high-precision polishing cage.
- the present invention provides the semiconductor laser pumped solid-state laser device according to the fourth aspect, wherein the Nd: YAG has a thickness in the light transmission direction of 0.31 to 0.33 mm, 0.39 mm to 0.44 mm, 0.51.
- the Nd: YAG has a thickness in the light transmission direction of 0.31 to 0.33 mm, 0.39 mm to 0.44 mm, 0.51.
- a semiconductor laser pumped solid-state laser device having a value falling within any of mm to 0.55 mm and 0.65 mm to 0.67 mm.
- ⁇ is the wavelength
- n is the refractive index of Nd: YAG
- the reflection peak of Nd: YAG is tuned to the peak of the gain band near 1064.4 nm, but the gain band actually moves to the longer wavelength side as the temperature rises.
- the actual variable temperature range of Nd: YAG is about 100 ° C. Therefore, the width of the wavelength that can be swept by changing the temperature is lnm (0.01 nmZ ° C X 100 ° C).
- tuning the reflection peak to the desired wavelength by changing the temperature requires that the FSR determined by the thickness of Nd: YAG can be swept with temperature.
- FSR is expressed by the following equation.
- L is the thickness of Nd: YAG.
- Nd YAG thickness is 0.3 lmm. This is essentially the lower limit of “0.31 mm or more” for the thickness L of Nd: YAG.
- the upper limit of the Nd: YAG thickness is determined by the condition that FSR is larger than half of the gain bandwidth to select one of the longitudinal modes in the gain band. That is, since the gain bandwidth of Nd: YAG is about 0.7 nm, the FSR is 0.35 nm or more, which is 0.89 mm or less when converted to the thickness L of Nd: YAG. This is the upper limit condition “0.89 mm or less” for the thickness L of Nd: YAG.
- the appropriate Nd: YAG thickness is 0.3 l. It is a value of ⁇ 0.33mm, 0.39 ⁇ 0.44mm, 0.51 ⁇ 0.55mm, 0.65 ⁇ 0.67mm.
- the present invention provides the semiconductor laser pumped solid-state laser device according to any one of the first to fifth aspects, wherein the end face that is not the end face that is the end of the optical resonator of the Nd: YAG is uncoated.
- a semiconductor laser-excited solid-state laser device is provided.
- Nd YAG optical resonator end face is an HR coat, but the end face that is not the end face of the optical resonator is not coated.
- the present invention relates to the semiconductor laser pumped solid-state laser device according to the sixth aspect, wherein the optical length of the optical resonator is 18 mm or less. I will provide a.
- the present inventor only needs to make the reflection peak of Nd: YAG substantially coincide with one of the resonator modes, and further give a 0.3% or more aperture to the adjacent resonator mode. I found out. If the end face that is the end of the optical resonator of Nd: YAG is HR coated and the end face that is not the end of the optical resonator is uncoated, it causes a loss of 0.3% or more to the adjacent resonator mode. To achieve this, the resonator mode interval should be 0.03 nm or more. If this is converted, the optical length of the optical resonator becomes 18 mm or less.
- single mode oscillation near 1064.4 nm can be realized with a configuration without inserting an etalon or the like into the optical resonator!
- FIG. 1 is a configuration explanatory view showing a semiconductor laser pumped solid-state laser device 100 according to the first embodiment.
- This semiconductor laser pumped solid-state laser device 100 is pumped by a semiconductor laser 1 that emits pump laser light, a first lens 21 and a second lens 22 that collect the pump laser light, and the pumped laser light that has been collected.
- Nd YAG (solid-state laser medium) 3 that stimulates and emits fundamental laser light
- a temperature changer 4 that changes the temperature of Nd: YAG3, a Brewster plate 5 that adjusts the polarization
- a fundamental laser A wavelength conversion element 6 that converts light into second harmonic light, a mirror 7 that constitutes one end of the optical resonator 8 and transmits the second harmonic light, and a part of the second harmonic light that passes through the mirror 7
- the beam splitter 9 to be extracted, the photodiode 10 that receives the second harmonic light extracted by the beam splitter 9 and converts it into an electrical signal, and the semiconductor laser 1 so that the intensity of the electrical signal at the photodiode 10 is constant.
- the semiconductor laser 1 is not shown in the figure so that the excitation laser beam has a wavelength of 808.5 nm, which is the Nd: YAG absorption peak, and is temperature-tuned by a Peltier device!
- Nd: YAG3 is a ceramic obtained by sintering a single crystal or a fine crystal.
- the end face of Nd: YAG3, which is the end of the optical resonator 8, has a high transmittance for a wavelength of 808.5 nm and a high reflectivity for a wavelength of 1064 nm. Has been.
- the end face of Nd: YAG3 that is not the end of the optical resonator 8 is uncoated.
- the parallelism of the two end faces of Nd: Y AG3 is machined with an accuracy of less than 5 seconds.
- Nd: YAG3 is installed so that its two end faces are perpendicular to the optical axis.
- An optical resonator 8 is formed between the end face of Nd: YAG 3 to which the HR coat 3 a is applied and the mirror 7.
- the optical length of the optical resonator 8 is 18 mm or less.
- the temperature changing device 4 changes the temperature of Nd: YAG3 by a Peltier element so that the reflection peak exists in the vicinity of 1064.4 ⁇ m and the reflection peak does not exist in the vicinity of 1061.8nm. adjust.
- the wavelength conversion element 5 includes LiNbO, LiTaO, MgO: LiNbO, MgO: LiTaO, KNbO.
- KTiOPO-like materials or these materials are subjected to polarization inversion treatment.
- the fundamental laser light having a wavelength of around 1064.4 nm that passes through the wavelength conversion element 5 is converted into harmonic light such as second harmonic light or third harmonic light and output.
- the wavelength conversion element 5 is tuned to an appropriate temperature by a Peltier element or a heater (not shown).
- FIG. 2 is a characteristic diagram showing the reflectance when Nd: YAG is viewed from the inside force of the resonator when the thickness of Nd: YAG3 is 0.41 mm (FSR is 0.76).
- a hatched portion a in FIG. 2 indicates a region (for example, 1064.4 nm ⁇ 0.35 nm) having a position of an oscillation line of 1064.4 nm and a peripheral gain. Since there is one reflection peak at the wavelength of this shaded area a, it oscillates in the vicinity.
- the hatched portion b indicates the region (eg, 1061.8 nm ⁇ 0.2 nm) having the position of the oscillation line of 1061.8 nm and the surrounding gain. With respect to the wavelength of the shaded part b, oscillation with low reflectivity is suppressed.
- an etameter is provided in the optical resonator.
- a single-mode oscillation near 1064.4 nm can be realized with a configuration that does not include any other components.
- the thickness of Nd: YAG3 is 0.13 to 0.22mm, 0.26 to 0.33mm, 0.39 to 0.44mm, 0.5 l to 0.55mm, and 0.65 to 0.67mm. /.
- the values of FSR are 0.467 to 0.480, 0.56 to 0.60, 0.70 to 0.80, 0.933 to 1.20, and 1.4 to 2.4.
- the shaded areas A, B, C, D, and E shown in FIG. In these shaded areas A, B, C, D, and E, there is a reflection peak in the vicinity of 1064.4 nm and no reflection peak in the vicinity of 1061.8 nm. Near single-mode oscillation can be realized.
- Nd: YAG3 falls within the range of 0.31 to 0.33mm, 0.39 to 0.44mm, 0.51 to 0.55mm, and 0.65 to 0.67mm, it is suitable for a temperature sweep of about 100 ° C. Therefore, it becomes suitable.
- the semiconductor laser excitation solid-state laser device of the present invention can be used in the bioengineering field and the measurement field.
- FIG. 1 is a configuration explanatory view showing a semiconductor laser pumped solid-state laser device according to a first embodiment.
- FIG. 2 is a characteristic diagram showing the transmittance when the thickness of Nd: YAG is 0.4 lmm.
- FIG. 3 is a characteristic diagram showing the wavelength of the reflection peak of Nd: YAG against FSR.
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Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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CN2005800511773A CN101228676B (zh) | 2005-07-26 | 2005-07-26 | 激发半导体激光的固体激光装置 |
EP05767214A EP1909365A4 (en) | 2005-07-26 | 2005-07-26 | THROUGH SEMICONDUCTOR LASER SOLID BODY LASER |
US11/989,260 US7593443B2 (en) | 2005-07-26 | 2005-07-26 | Solid laser apparatus excited by a semiconductor laser |
PCT/JP2005/013610 WO2007013134A1 (ja) | 2005-07-26 | 2005-07-26 | 半導体レーザ励起固体レーザ装置 |
JP2007526762A JP5009796B2 (ja) | 2005-07-26 | 2005-07-26 | 半導体レーザ励起固体レーザ装置 |
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PCT/JP2005/013610 WO2007013134A1 (ja) | 2005-07-26 | 2005-07-26 | 半導体レーザ励起固体レーザ装置 |
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EP (1) | EP1909365A4 (ja) |
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Cited By (1)
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JP2010251448A (ja) * | 2009-04-14 | 2010-11-04 | Shimadzu Corp | 第三高調波を出力する固体パルスレーザ装置 |
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JP2009004525A (ja) * | 2007-06-21 | 2009-01-08 | Fujitsu Ltd | 光源モジュール |
CN102349203B (zh) * | 2010-01-12 | 2014-01-08 | 松下电器产业株式会社 | 激光光源、波长转换激光光源及图像显示装置 |
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JPH04318988A (ja) * | 1991-04-18 | 1992-11-10 | Fuji Photo Film Co Ltd | レーザーダイオードポンピング固体レーザー |
JP2000208849A (ja) * | 1999-01-12 | 2000-07-28 | Shimadzu Corp | 半導体レ―ザ励起固体レ―ザ装置 |
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DE4041131A1 (de) * | 1990-12-21 | 1992-07-02 | Messerschmitt Boelkow Blohm | Festkoerperlaser |
JPH05218556A (ja) * | 1992-02-04 | 1993-08-27 | Fuji Photo Film Co Ltd | 固体レーザー |
JPH08102564A (ja) * | 1994-09-30 | 1996-04-16 | Shimadzu Corp | 波長変換レーザ装置 |
US5854802A (en) * | 1996-06-05 | 1998-12-29 | Jin; Tianfeng | Single longitudinal mode frequency converted laser |
JPH10256638A (ja) * | 1997-03-13 | 1998-09-25 | Ricoh Co Ltd | 固体レーザ装置 |
JP2000315833A (ja) * | 1999-04-30 | 2000-11-14 | Fuji Photo Film Co Ltd | 単一縦モード固体レーザー |
JP4382908B2 (ja) * | 1999-06-16 | 2009-12-16 | 株式会社島津製作所 | 固体レーザ装置 |
-
2005
- 2005-07-26 EP EP05767214A patent/EP1909365A4/en not_active Withdrawn
- 2005-07-26 CN CN2005800511773A patent/CN101228676B/zh not_active Expired - Fee Related
- 2005-07-26 WO PCT/JP2005/013610 patent/WO2007013134A1/ja active Application Filing
- 2005-07-26 JP JP2007526762A patent/JP5009796B2/ja active Active
- 2005-07-26 US US11/989,260 patent/US7593443B2/en not_active Expired - Fee Related
Patent Citations (5)
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JPS6426638A (en) * | 1987-04-13 | 1989-01-27 | Ethyl Corp | Polyimide precursor substance |
JPS6431485A (en) | 1987-07-27 | 1989-02-01 | Sharp Kk | Optical fiber communication device |
JPH04318988A (ja) * | 1991-04-18 | 1992-11-10 | Fuji Photo Film Co Ltd | レーザーダイオードポンピング固体レーザー |
JP2000208849A (ja) * | 1999-01-12 | 2000-07-28 | Shimadzu Corp | 半導体レ―ザ励起固体レ―ザ装置 |
JP3509598B2 (ja) | 1999-01-12 | 2004-03-22 | 株式会社島津製作所 | 半導体レーザ励起固体レーザ装置 |
Non-Patent Citations (3)
Title |
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"Lasers", 1986, UNIVERSITY SCIENCE BOOKS, pages: 534 |
J. OPT. SOC. AM., vol. 3, no. 9, 1986, pages 1175 |
See also references of EP1909365A4 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010251448A (ja) * | 2009-04-14 | 2010-11-04 | Shimadzu Corp | 第三高調波を出力する固体パルスレーザ装置 |
Also Published As
Publication number | Publication date |
---|---|
CN101228676B (zh) | 2011-12-07 |
US20090135862A1 (en) | 2009-05-28 |
EP1909365A4 (en) | 2010-06-23 |
CN101228676A (zh) | 2008-07-23 |
US7593443B2 (en) | 2009-09-22 |
JP5009796B2 (ja) | 2012-08-22 |
JPWO2007013134A1 (ja) | 2009-02-05 |
EP1909365A1 (en) | 2008-04-09 |
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