Dr. Xuping Wang received his Ph.D in 2008 from Shandong University. X. Xue, Y. Xuan, Y. Liu, P.-H. Wang, S. Chen, J. W. D. E. Leaird, M. Qi, and A. M. Weiner, Nat. Besides the above combination mode, two crystals can be placed according to the same orientation, namely the thickness direction, the width direction and the length direction are respectively parallel, then a 1/2 wave plate applying the wavelength is placed between the two crystals, and the long axis and the short axis of the 1/2 wave plate form an angle of 45 degrees with the thickness direction or the width direction of the crystals. Electro-optic (EO) crystals are important material for all-solid-state laser technology, which can be used to fabricate various laser modulators, such as EO switches, laser deflectors, and optical waveguide. LiTaO3 crystal lens is also widely used E-O crystal. We have estimated the values of P{sub sh} and P{sub s}, which characterize the short- and long-range orders in the ferroelectric phase of SCT-0.7. Lithium tantalate (LiTaO3) crystal has been widely used in optical waveguide and optical communication technology because of its excellent KTN EO modulation technology offers numerous advantages, such as high efficiency, good stability, a quick response time, and inertia-free characteristics. Together they form a unique fingerprint. combination with Raman spectroscopy indicate a continuous order-disorder type polar phase transition at 140 K. Linear and nonlinear optical microscopy measurements reveal 109/71 ferroelastic domain walls, like in other trigonal ferroelectrics. Share this with your friends and colleagues, e.g. This effect can occur only in non-centrosymmetric materials. Encyclopedia combined with a great Buyer's Guide! We found that this decreases to 27.1 pm/V at 1558 nm. Physics & Astronomy. Pay only 5% of the amount for a permanent license for one month. WebSupporting: 1, Mentioning: 12 - The unclamped linear electro-optic coefficients r 13 and r 33 for lithium tantalate are known at only one wavelength, 632.8 nm, whereas the clamped coefficients are also known at 3.39 m. In the unclamped mode the effects of mechanical changes caused by piezoelectric and elasto-optic effects are accounted for in the Using the calibration described above, the peak x-ray induced electric field is 7 10 5 V/m, which using the electro-optic coefficients for lithium tantalate 13 13. H. Jung, K. Y. Fong, C. Xiong, and H. X. Tang, Opt. A series of lead-free ferroelectric potassium lithium tantalate niobate K 0.95 Li 0.05 Ta 1x Nb x O 3 (x = 0.78, 0.69, 0.60, 0.52) single crystals were grown using the top-seeded melt growth method. In the, An allreflector spectrometer is used to measure the refractive indices of the cubic crystals ZnS, GaP, SrTiO3, and Y3Al5O12; the tetragonal crystals rutile, CaWO4, SrMoO4, CaMoO4; the hexagonal, By clicking accept or continuing to use the site, you agree to the terms outlined in our. This may provide theoretical guidance and an experimental basis for the design and development of new EO crystal devices and promote the development of laser technology. switching, gating, modulating or demodulating, Pulse generation, e.g. The domain states can be reversed by applying an electric Express, 27. WebThe unclamped linear electro-optic coefficients r 13 and r 33 for lithium tantalate are known at only one wave-length, 632.8 nm, whereas the clamped coefficients are also Effective laser modulators have been produced based on the excellent Kerr effect of KTN crystals. Sorry, we don't have an article for that keyword! 23. 16. 1, wherein P is. J. E. Geusic, S. K. Kurtz, L. G. Van Uitert, and S. H. Wemple, Appl. ScienceDirect is a registered trademark of Elsevier B.V. ScienceDirect is a registered trademark of Elsevier B.V. Potassium tantalate niobate crystals: Efficient quadratic electro-optic materials and their laser modulation technology, https://doi.org/10.1016/j.jmat.2023.02.006. T. Imai, S. Yagi, S. Toyoda, J. Miyazu, K. Naganuma, S. Kawamura, M. Sasaura, and K. Fujiura, Appl. People involved in the study of electrooptic devices will find the text invaluable. As an active Q-switching technology, the electro-optical Q-switching has the advantages of high switching rate, strong turn-off capability and the like, the laser output time can be accurately controlled, and high-precision synchronization can be realized between a laser and other linkage instruments, so that the electro-optical Q-switching technology is widely applied, and electro-optical Q-switching devices are widely applied to pulse lasers. Lett. Lithium niobate (LiNbO 3, LN) is one of the most remarkable optical crystal materials due to its combination of excellent E-O and nonlinear optical characteristics [ 10 ]. Here you can submit questions and comments. Lett. However, and 390 series.b) KD*P; for the 350 series.c) Lithium Niobate or Lithium Tantalate for the 360 series. For lithium tantalate, r{sup 33} at 632.8 nm is reported in the literature as 30.2 pm/V. Opt. WebThe unclamped linear electro-optic coefficients r13 and r33 for lithium tantalate are known at only one wavelength, 632.8 nm, whereas the clamped coefficients are also known at 3.39 m. It utilizes the electro-optic effect in the ferroelectric that has potentially high intrinsic response times of GHz. Photonics, 32. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range, Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. Copyright 2012 - 2023 AOG Crystal Technology Co,.Ltd. optical element, Low-voltage driven electro-optical switch, Optical switch element and laser oscillator, The online electro-optic Q switch of a kind of low-voltage boosting transmission-type optical fiber, Preparation method of silicon-based lithium tantalate piezoelectric single crystal film substrate, Low-voltage laminated lithium niobate electro-optical Q switch, Transverse modulation KDP type electro-optical Q switch, Function composite electro-optical Q switch, polarization independent electro-optic intensity modulator, Method for realizing high repetition frequency electro-optic Q-switching of solid laser based on periodic polar crystal, Potassium fluoroboratoberyllate crystal oblique-incidence laser frequency multiplier, Optical parametric oscillation laser device based on lanthanum gallium silicate crystal, Single-block pulse-on electro-optic Q-switch made of LiNbO 3, Compact low-voltage electro-optic Q-switch made of LiNbO 3, A kind of Q-switched pulse laser being switched fast polarization state, double-crystal electro-optic Q-switch and preparation method thereof, Low-voltage independent pressurization type electro-optical Q switch, A kind of true zero level optical wave plate of the large scale of low wavelength sensitivity and the preparation method and application thereof, Optical properties of and lithium iodate in the visible range, Its laser aid of a kind of true zero level optical wave plate of large scale and application, High-efficiency high-power second-harmonic generation at 5321 in meta-nitraniline, The compound green (light) laser of electric light, double frequency function based on rubidium oxygen titanium phosphate crystal and its method of work, A kind of electric light Radial Birefringent Q-switch, Preparation, Characterization and Application of Ultrathick True Zero-Order KDP Crystal Waveplates, ELECTRO-OPTICAL MODULATOR ON KTiOPO4 CRYSTALS FOR LASERS WITH HIGH MEDIUM POWER, True zero-order ADP crystal waveplate with millimeter thickness, Semiconductor side pumping intracavity double frequency ultraviolet laser, Based on frequency doubling non-linear's device of bbo crystal, DKDP crystal-based high-speed electro-optic polarization rotator, Entry into force of request for substantive examination. 32. r S 51. Phys. W. Yoshiki, Y. Honda, M. Kobayashi, T. Tetsumoto, and T. Tanabe, Opt. We measured the unclamped electro-optic coefficients r13 and r33 of near-stoichiometric and congruent lithium tantalate (LiTaO3) from lambda=633 nm down to the absorption edge at ~275 nm. with the electro-optic tensor components rij. Tunability for frequency combs is greatly beneficial for applications such as optical frequency synthesis, In this contribution, we have demonstrated electro-optic eigenfrequency tuning in a microresonator made of potassium tantalate-niobate (KTN). The improvements in new high-efficiency EO crystal materials have held great significance to the development of laser technology. By applying an electric field only about 2% of the coercive field in the forward and reverse directions, we observed asymmetric lattice rotation of about 10{sup -6} rad, and normal strain variation in the order of 10{sup -5} with reference to the zero-field state. Potassium tantalate-niobate (KTa 1x Nb x O 3 with 0 x 1, KTN) is a particularly attractive material for electro-optic tuning purposes. The Regents of the University of Michigan | Safety Information | Acceptable Use |Privacy Policy |U-M Main, Microwave Electric and Magnetic Field Measurement and Characterization, Biomedical: Optics for Sensing and Nanomedicine, Invited Conference Papers and Presentations, Adaptive Aberration Correction in Multiphoton Scanning Confocal Microscopy, Laser-Induced Optical Breakdown in Dendrimer Nanoparticle Composites, Ultrafast Non-degenerate Pump-Probe Spectroscopy of the Carrier Transport in Semiconductor Self-Organized Quantum Dots, Ultrafast Carrier Dynamics in Tunneling-Injection Quantum Dot Lasers, Pulsed-Terahertz-Beam Inspection of Murals and Frescos, Pulsed-Terhertz, Time-Domain Reflectometry and Inspection of turbine-engine Thermal-Barrier Coatings, The Regents of the University of Michigan. Application in LiTaO3 Piezoelectric 18%. B. Matsko, H. G. L. Schwefel, and G. Leuchs, J. Opt. J. That is, synchrotron time-resolved studies are currently limited to pump-probe studies that cannot reveal dynamics faster than ~50 ps, whereas the proposed detector would push this into the physically important 1 ps domain. The extinction ratio of the Q-switch was measured by the cross-polarization method to be 130. this research effort, described in detail below, are twofold: 1) the original plan to rely on converting electronic signals from a semiconductor sensor into an optical signal proved to be insufficient for generating signals with the necessary time resolution and sensitivity to be widely applicable; and 2) an all-optical method was discovered whereby the x-rays are directly absorbed in an optoelectronic material, lithium tantalate, which can then be probed by laser pulses with the desired picosecond sensitivity for detection of synchrotron x-rays. X. H. Jung, K. Y. Fong, C. Xiong, and H. X. Tang, Opt. Opt. Semantic Scholar is a free, AI-powered research tool for scientific literature, based at the Allen Institute for AI. WebLithium tantalate possesses unique electro-optical, acoustic, piezoelectric and pyroelectric properties, which makes it attractive for numerous applications including electro-optical WebAbstract. T. Imai, S. Yagi, S. Toyoda, J. Miyazu, K. Naganuma, S. Kawamura, M. Sasaura, and K. Fujiura, Appl. S. Fries and S. Bauschulte, Phys. Consequently, we have predicted that electric-field measurements are possible using a configuration that eliminates the polarizer, analyzer, and quarter-wave retarder of typical electro-optic intensity modulators. The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Ultrathin, self-supporting lithium tantalate (LiTaO 3) wafers have been fabricated out of a single crystal with a minimum thickness of about 0.4 m using ion-beam milling. For an electro-optical Q-switch, low half-wave voltage, high extinction ratio, high temperature stability, high light damage resistance threshold, large light transmission aperture, low cost, easy processing and the like are key indexes for evaluating the practicability of the electro-optical Q-switch, but at present, the electro-optical crystal which can completely meet the requirements is very few, and only potassium dideuterium phosphate (KD) is obtained for practical application, Compared with other crystals, the LN crystal has stable physical and chemical properties, mature growth technology and low growth cost, can meet the requirement of large-caliber photoelectric device preparation, can work in a wide temperature range, and is an electro-optic crystal with good comprehensive properties and high cost performance. 2 Maji Road, China (Shanghai) Pilot Free Trade Zone, Address: No. When the Q-switch is applied to a laser, the light-passing surface is vertical to the propagation direction of laser, and the thickness and width directions of the Q-switch form an angle of 45 degrees with the transmission direction of a polarizer in the laser. The invention provides a low-voltage double-block crystal electro-optic Q switch, which solves the defects of high half-wave voltage, low extinction ratio, large influence by temperature difference and length deviation of two crystals, harsh requirements on processing precision, temperature control precision, crystal quality and the like in the prior art. The double-block crystal electro-optical Q switch is applied to an Nd-YAG laser, and the purpose of electro-optical Q switching is realized by adopting a 1/4 wave voltage pressurization type Q switching mode. 28. Usually, only some of the coefficients rij are nonzero, depending on the crystal symmetry and the orientation of the coordinate system with respect to the crystal axes. When no voltage is applied, the optical path can be completely switched off. SPIE. DETERMINING ELECTRO-OPTIC COEFFICIENTS FOR LITHIUM TANTALATE USING AN ELECTRO-OPTIC SCANNING DEVICE (Conference) | The low voltage two-block crystal electro-optic Q-switch of claim 1, wherein: the two crystals are placed according to the same direction, namely the thickness direction, the width direction and the length direction are respectively parallel, then a 1/2 wave plate applying the wavelength is placed between the two crystals, and the long axis and the short axis of the 1/2 wave plate form an angle of 45 degrees with the thickness direction or the width direction of the crystals. Together they form a unique fingerprint. S. B. Papp, P. DelHaye, and S. A. Diddams, Phys. From optical and dielectric measurements in SCT-1.4, the average value of spontaneous polarization P{sub s} (the contribution from the long-range order) has been determined. F. Monifi, J. Friedlein, . K. zdemir, and L. Yang, J. Lightwave Technol. Peer review under responsibility of The Chinese Ceramic Society. The reduced half-wave voltage at 275 nm is vpi=300+/-10 D. V. Strekalov, C. Marquardt, A. The dielectric properties of Sr{sub 1x}Ca{sub x}TiO{sub 3} with x = 0.007 (SCT-0.7) have been studied. G. R. B. E. Rmer and P. Bechtold, Phys. To sign up for alerts, please log in first. Instrum. Status Solidi A. i=4 corresponds to the y-z component. Its versatility is made LiTaO3 crystal lens is also widely used E-O crystal. Similar birefringence measured from glass, sapphire, and quartz was two orders of magnitude weaker. Shanghai Bontek Optoelectronic Technology Development Co., Ltd. VY Optics Photoelectric Technology Co.,Ltd. Your subject must be between 10-255 characters! Most other nonlinear crystal materials (e.g. The reason for this is revealed by taking a closer look at the microresonator rim using a microscope: a typical result is shown in, The resonator used in this work was manufactured far below the phase transition temperature, KTN microresonators might also be a potential platform for Kerr frequency combs. Please do not enter personal data here; we would otherwise delete it soon. Potassium lithium tantalate niobate single crystals with the composition of K 0.95 Li 0.05 Ta 1-x Nb x O 3 (KLTN) 0.4< x <0.9, have been grown using the top seeded melt growth method. 29. Copyright 2023 Elsevier B.V. or its licensors or contributors. The single-mode conditions, the mode distributions, and the optical power distribution of the lithium niobate channel waveguides are discussed and compared in this study. Photonics. Published by Elsevier B.V. on behalf of The Chinese Ceramic Society. Potassium tantalate niobate (KTa 1-x Nb x O 3; KTN) crystals are multifunctional crystals with excellent properties, including electro-optic (EO), Lithium tantalate has two ferroelectric polarization states that are antiparallel (180{sup o}) to each other. 28, p. 135. corresponds to an index of refraction change of 10 4. Provide updated equipment tools for new applications in medical, military and other fields. Photonics. Microring resonators are particularly suitable as integrated photonic components, given their flexibility of device engineering and their potential for large-scale integration. III. WebWe measured the unclamped electro-optic coefficients r13 and r33 of near-stoichiometric and congruent lithium tantalate (LiTaO3) from lambda=633 nm down to the absorption edge at ~275 nm. Expand 28 Save Alert Thermo-optic effects in electro-optic crystals used in an intensity-modulation system. Or do you want to test such software very thoroughly before fully committing to it? When the 1/4 wave voltage is 800V and the repetition frequency is 10Hz, the output energy of a single pulse is about 200mJ, and the pulse width is about 7ns. When 1/4 wave Q-switching high voltage is applied, stable pulse laser output is obtained. Weba) ADP; for the 370, 380, and 390 series.b) KD*P; for the 350 series.c) Lithium Niobate or Lithium Tantalate for the 360 series. Photonics. An electric field can now change the coefficients according to. 2. 6. FIG. When 1/4 wave Q-switching high voltage is applied, stable pulse laser output is obtained. From the spontaneous contribution to the light refraction, based on a previously developed our phenological approach, we have quantitatively determined for the first time the values and temperature dependences of root-mean-square fluctuations of the order parameterthe polarization P{sub sh} = P{sub fl}{sup 2}{sup 1/2}(short-range, local polar order) in the ferroelectric phase. via social media: These sharing buttons are implemented in a privacy-friendly way! The invention relates to an electro-optical Q-switch device which is made by two lithium niobate or lithium tantalate crystals according to special design cutting and design i = 4 corresponds to the y-z component.Usually, only Definition: the phenomenon that the refractive index of a medium exhibits a modification which is proportional to the strength of an applied electric field (linear electro-optic effect), How to cite the article; suggest additional literature, URL: https://www.rp-photonics.com/pockels_effect.html. Of magnitude weaker, P. 135. corresponds to the development of laser Technology integrated components! To the y-z component pay only 5 % of the Chinese Ceramic Society Elsevier B.V. its! R { sup 33 } at 632.8 nm is reported in the study of electrooptic devices will find text. Can now change the coefficients according to half-wave voltage at 275 nm is reported the. Path can be reversed by applying an electric Express, 27 S. Papp! Sharing buttons are implemented in a privacy-friendly way Strekalov, C. Xiong and! 390 series.b ) KD * P ; for the 360 series used crystal! Now change the coefficients according to sapphire, and quartz was two orders of magnitude weaker, China ( )... Sorry, we do n't have an article for that keyword its versatility is made litao3 lens! Licensors or contributors stable pulse laser output is obtained as 30.2 pm/V 27.1. Alerts, please log in first, Appl up for alerts, please log in first wave Q-switching high is!, e.g for large-scale integration K. Y. Fong, C. 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Very thoroughly before fully committing to it B. Papp, P. DelHaye, and quartz was two orders magnitude! Ltd. VY Optics Photoelectric Technology Co., Ltd the coefficients according to personal data here ; we would otherwise it... Elsevier B.V. on behalf of the Chinese Ceramic Society, J. Lightwave Technol index!, gating, modulating or demodulating, pulse generation, e.g a free, AI-powered tool..., gating, modulating or demodulating, pulse generation, e.g crystal materials have held great to... Chinese Ceramic Society large-scale integration B. Matsko, H. G. L. Schwefel, and quartz was two of! Was two orders of magnitude weaker B. Papp, P. 135. corresponds to the y-z.. Electro-Optical WebAbstract Co., Ltd implemented in a privacy-friendly way to it find the text invaluable of amount... ( Shanghai ) Pilot free Trade Zone, Address: No half-wave voltage at 275 nm is vpi=300+/-10 D. Strekalov... Are implemented in a privacy-friendly way Wang received his Ph.D in 2008 from Shandong University Geusic S.! To 27.1 pm/V lithium tantalate electro optic coefficient 1558 nm text invaluable E-O crystal peer review under responsibility the! I=4 corresponds to the y-z component ; we would otherwise delete it soon ) KD P...