Kerobyan, M. and Kostanyan, R.B. and Soghomonyan, S. and Essaian, S. (2014) FABRY-PEROT INTERFERENCE IN QUASI-PHASE-MATCHED SECOND HARMONIC GENERATION IN GREEN MICROCHIP LASER. Armenian Journal of Physics, 7 (4). pp. 201-212. ISSN 1829-1171
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Abstract
We report on experimental and theoretical study of temperature tuning of single pass quasiphase- matched second harmonic generation in a plane parallel PPMgOLN (periodically poled MgO doped LiNbO3) crystal in a green microchip laser. Periodic oscillations of second harmonic power upon variation of the temperature are observed. The oscillation period (4.8°C – 8.4°C) is several times smaller than the temperature acceptance bandwidth (18.4°C – 32.1°C), and the period strongly correlates with the crystal length. Formula for temperature dependence of second harmonic power is derived, which takes into account multiple reflections of fundamental and second harmonic waves in the nonlinear crystal. Comparison of experimental and theoretical data allows us to conclude that the origin of the oscillations is the multiple beam Fabry-Perot interference in the plane parallel nonlinear crystal.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | green microchip laser, second harmonic generation, Fabry-Perot interference |
| Subjects: | Physics > 81.Materials science Physics > 85.Electronic and magnetic devices; microelectronics |
| ID Code: | 706 |
| Deposited By: | Prof. Vladimir Aroutiounian |
| Deposited On: | 07 Dec 2014 22:23 |
| Last Modified: | 15 Dec 2014 12:29 |
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