Dr. Bing Liu received the Ph.D. degree in material science from Shandong University in 2008. WebThe invention provides a low-voltage double-block crystal electro-optical Q switch, belonging to the application of crystal materials in the field of photoelectric technology. with the electro-optic tensor components rij. I would like your verified suppliers matching service. Abstract. 171 Zhongyuan Rd, Zhongyuan District, Zhengzhou,450000, Henan, China, Products: Diamond Dicing Blades For Semiconductor Industry,Wafer Dicing Blades ,Super Thin Diamond Dicing Blade,UltraThin blade. C: Solid State Phys. J. E. Geusic, S. K. Kurtz, L. G. Van Uitert, and S. H. Wemple, Appl. To achieve eigenfrequency tuning, one can employ thermal, mechanical, and electro-optic means. Wavelength 65%. S. B. Papp, P. DelHaye, and S. A. Diddams, Phys. 33, 13 and c All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention. Coefficient 28%. Potassium tantalate niobate (KTN) is a popular multifunctional crystal because of its remarkable and excellent quadratic EO effect. 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 Lett. Linear electro-optic (EO) and thermo-optic (TO) effects are jointly considered on the basis of field-induced and temperature-affected perturbations of the operating point along the optical, The values and wavelength dependence of the electronic and ionic contributions, re and ri, to the clamped electro-optic (EO) coefficients r22 and rc in a LiTaO3 crystal have been determined and are, The 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. The extinction ratio of the Q-switch was measured by the cross-polarization method to be 200. An electric field can now change the coefficients according to. |. The EO modulation technique based on Kerr effect of KTN crystals could be better meet the future laser applications. Opt. 11. r T 22. In an effort to increase the measurement sensitivity of electro-optic microwave-field sensing, a simplified electro-optic sensor/modulation system that employs a wavelength-tunable laser diode and an electro-optic-crystal microcavity has been developed. 2023 The Authors. WebLithium niobate (LN), possessing wide transparent window, strong electro-optic effect, and large optical nonlinearity, is an ideal material platform for integrated photonics application. By continuing you agree to the use of cookies. 2 Maji Road, China (Shanghai) Pilot Free Trade Zone, Address: No. We measured the unclamped electro-optic coefficients r 13 and r 33 of near-stoichiometric and congruent lithium tantalate ( Li Ta O 3) from = 633 nm down to the absorption edge at 275 nm. S. F. Preble, Q. Xu, and M. Lipson, Nat. Potassium tantalate niobate (KTa 1-x Nb x O 3; KTN) crystals are multifunctional crystals with excellent properties, including electro-optic (EO), WebThis crystal orientation (45 Y-cut) utilizes the R41 electro-optic coefficient, which, in addition to resonance-free response, has a low electro-optic coefficient sensitivity versus temperature. The invention provides a low-voltage double-block crystal electro-optical Q switch, belonging to the application of crystal materials in the field of photoelectric technology. A relatively new development is that of poled polymers, containing specifically designed organic molecules. A. Valdmanis, in Semiconductors and Semimetals, edited by B. Marcus Robert (Elsevier, 1990), Vol. LiTaO3 crystal lens is also widely used E-O crystal. C. S. Werner, W. Yoshiki, S. J. Herr, I. Breunig, and K. Buse, Optica. J. Szabados, S. K. Manjeshwar, I. Breunig, and K. Buse, Proc. Mater. 1. A. L. Gaeta, M. Lipson, and T. J. Kippenberg, Nat. Low-voltage double-crystal electro-optical Q switch, Application filed by Henan Institute of Engineering, 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, Lasers, i.e. Dr. Xuping Wang received his Ph.D in 2008 from Shandong University. 2. F. Monifi, J. Friedlein, . K. zdemir, and L. Yang, J. Lightwave Technol. See also: Pockels cells, electro-optic modulators, electro-optic effect, nonlinear crystal materialsand other articles in the category physical foundations. WebComposition effect on electro-optic (EO) properties of a LiNbO 3 (LN) single-crystal has been investigated in a Li 2 O-content range of 47.049.95mol%. 1. 1. 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. T. Imai, M. Sasaura, K. Nakamura, and K. Fujiura, NTT Tech. WebComposition effect on electro-optic (EO) properties of a LiNbO 3 (LN) single-crystal has been investigated in a Li 2 O-content range of 47.049.95mol%. Weight Alphabetically 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). When 1/4 wave Q-switching high voltage is applied, stable pulse laser output is obtained. The domain states can be reversed by applying an electric When the Q-switch is applied to a laser, the light-passing surface is perpendicular to the laser propagation direction, 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. LiTaO3 crystal lens is also widely used E-O crystal. Electro-Optic Coefficients r(10-12mV-1) at 632.8nm, Nonlinear Optical Coefficients at 1-06 m (*d31=d15), Typical Acoustic Properties Surface Acoustic Wave Properties, Group Delay Time Temp Coefficient (ppm/C), SAW = Surface Acoustic WaveL, SAW =Leaky SAW, Selective Piezoelectric Coupling Factors & Frequency Constants/span>, E = extensionalS = shearQE = quasi extensionalQS = quasi shear, Elastic stiffness coefficient cij/(1010N/m2), piezoelectric strain constant dij/(10-11C/N), Electromechanical coupling coefficient kij(%), X, Y, Z or Y rotation with or without locating edges. 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 32. r S 51. H. Jung, K. Y. Fong, C. Xiong, and H. X. Tang, Opt. The low voltage two-block crystal electro-optical Q-switch of claim 1, wherein: the two crystals are fixed by a mechanical clamp or an optical cement according to the thickness/width directions, which are mutually vertical and the length direction orientation is consistent. J. Pfeifle, V. Brasch, M. Lauermann, Y. Yu, D. Wegner, T. Herr, K. Hartinger, P. Schindler, J. Li, D. Hillerkuss, R. Schmogrow, C. Weimann, R. Holzwarth, W. Freude, J. Leuthold, T. J. Kippenberg, and C. Koos, Nat. J. Pfeifle, V. Brasch, M. Lauermann, Y. Yu, D. Wegner, T. Herr, K. Hartinger, P. Schindler, J. Li, D. Hillerkuss, R. Schmogrow, C. Weimann, R. Holzwarth, W. Freude, J. Leuthold, T. J. Kippenberg, and C. Koos, Nat. 6.8. r S 22. X-ray absorption in lithium tantalate induces large, long-lived (~10-5 s) optical birefringence, visualized via scanning optical polarimetry, likely arising from electrooptic coupling to x-ray induced electric fields. Optics 18%. Center for Ultrafast Optical Science and Department of Electrical Engineering and Computer Science. If you want to place a link to this article in some other resource (e.g. WebELECTROOPTIC COEFFICIENTS AND ELASTICWAVE PROPAGATION IN SINGLEDOMAIN FERROELECTRIC LITHIUM TANTALATE | Semantic Scholar. in Pockels cells for electro-optic modulators, the largest tensor element (r33) is often used. C: Solid State Phys. 1. Both are grown by the Czochralski method which yields large, high quality single crystals. Use of a low voltage two-block crystal electro-optical Q-switch according to any of claims 1 to 4 in a laser resonator, wherein: when the laser resonator is applied, the light-passing surface is vertical to the propagation direction of laser, the thickness or width direction of the crystal and the transmission direction of the polarizer form an angle of 45 degrees, and the polarities of voltages applied to the two crystals are opposite. People involved in the study of electrooptic devices will find the text invaluable. K. Nakamura, J. Miyazu, Y. Sasaki, T. Imai, M. Sasaura, and K. Fujiura, J. 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In this state, it was impossible to couple light into it, and thus, no eigenfrequency tuning measurements could be carried out. This suggests that x-ray excited charges preferentially create ordered, aligned dipoles within the noncentrosymmetric unit cell of ferroelectric LiTaO3, enhancing the electric field compared to more isotropic charge distributions in the other materials. Most other nonlinear crystal materials (e.g. Note: this box searches only for keywords in the titles of encyclopedia articles. The dielectric, pyroelectric, and piezoelectric properties have been systematically investigated earlier to establish the quality of the crystals. The PE samples have been annealed (APE waveguides) and the changes of their r/sub 33/ electro-optic coefficient has been followed at successively higher temperatures and 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 ]. Provide updated equipment tools for new applications in medical, military and other fields. We found that this decreases to 27.1 pm/V at 1558 nm. Y. Minet, L. Reis, J. Szabados, C. S. Werner, H. Zappe, K. Buse, and I. Breunig, preprint, 15. Status Solidi A, S. Loheide, S. Riehemann, F. Mersch, R. Pankrath, and E. Krtzig, Phys. The two crystals are fixed by a mechanical clamp or an optical cement according to the thickness/width directions, which are mutually vertical and the length direction orientation is consistent. If you need an account, pleaseregister here, Eigenfrequency tuning in microresonators is useful for a range of applications including frequency-agile optical filters and tunable optical frequency converters. Lett. For lithium tantalate, r{sup 33} at 632.8 nm is reported in the literature as 30.2 pm/V. 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. Its magnitude is of the order of 30pm/V for LiNbO3, with some wavelength dependence. WebPotassium lithium tantalate niobate single crystals with the composition of K0.95Li0.05Ta1-xNbxO3(KLTN) 0.4
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