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Showing 2 results for Khorsandi
Mathematical consideration of Phase-Matching bandwidth, effective nonlinear coefficient and the walk-off effect for LiGa(SexS1-x)2 nonlinear crystals by using Genetic algorithm
S. Ghavami Sabouri, A. Khorsandi,
Volume 2, Issue 1 (International Journal of Optics and Photonics (IJOP) Vol. 2, No. 1, Winter 2008)
Abstract
In this paper the Phase-Matching bandwidth, effective nonlinear coefficient and the walk-off angle within the effective bandwidth of the LiGa(SexS1-x)2 biaxial nonlinear crystals are calculated using the Genetic algorithm (GA). This calculation is held for all tree principle XY, YZ and XZ planes individually. The results are shown the accuracy of the applied algorithm is quite qualified.
Tuning extension of a Difference-Frequency generation up to 100 nm using V-shaped external-cavity for the pump laser
Alireza Khorsandi, Maryam Maleki,
Volume 7, Issue 1 (International Journal of Optics and Photonics (IJOP) Vol 7, No 1, Winter-Spring 2013)
Abstract
In this research, tunability of a commercial diode laser has extended to about more than ± 11 nm using a V-shaped external-cavity fabricated around the laser. Although under normal condition it can be tuned up to about ± 4 nm just by changing its temperature and injection current. Such modified diode laser has then used in a difference-frequency generation (DFG) experimental setup as pump source in order to continuous tuning of the generated DFG spectrum up to about ± 100 nm from 4.76 m to 4.85 m in the mid-infrared region. An AgGaS2 crystal is used as nonlinear medium.
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