Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Parisa Gandomkar Yarandi"'
Publikováno v:
Journal of Lightwave Technology. 30:3203-3210
In this paper, we highlight the key reasons behind the poor power efficiency observed in multiple experiments in gain-guided index-antiguided (GG-IAG) fiber amplifiers and lasers. We show that by properly designing the fiber geometrical characteristi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f03b4136859b871c93090294a4e16f6e
https://doi.org/10.1109/jlt.2012.2214373
https://doi.org/10.1109/jlt.2012.2214373
Publikováno v:
IEEE Transactions on Antennas and Propagation. 59:4355-4360
Pocklington's integro-differential equation for thin wires with the exact kernel is reformulated using a second derivative formula for improper integrals. This allows for analytical evaluation of the second derivatives, resulting in a pure integral e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f8ba6603288b5d7963b91850f9e5402
https://doi.org/10.1109/tap.2011.2164211
https://doi.org/10.1109/tap.2011.2164211
Autor:
Karl W. Koch, Salman Karbasi, Ryan J. Frazier, Parisa Gandomkar Yarandi, Craig R. Mirr, Arash Mafi
Publikováno v:
Optics letters. 37(12)
We utilize transverse Anderson localization as the waveguiding mechanism in optical fibers with random transverse refractive index profiles. Using experiments and numerical simulations, we show that the transverse localization results in an effective
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d266a88209fa80ecf23c403680e3208a
https://pubmed.ncbi.nlm.nih.gov/22739889
https://pubmed.ncbi.nlm.nih.gov/22739889
Publikováno v:
Frontiers in Optics 2012/Laser Science XXVIII.
We highlight the key reasons behind the low efficiency of ultra-large-core single-mode gain-guided index-antiguided fiber amplifiers and lasers and show that a cladding-tapered design can significantly improve their power efficiency.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8f194825b3b0aa28349425e17c49c93
https://doi.org/10.1364/fio.2012.fw3a.31
https://doi.org/10.1364/fio.2012.fw3a.31
Autor:
Arash Mafi, Parisa Gandomkar Yarandi
Publikováno v:
Conference on Lasers and Electro-Optics 2012.
We highlight the key reasons behind the low efficiency of ultra-large-core single-mode gain-guided index-antiguided fiber amplifiers and lasers and argue that it is possible to improve the efficiency with proper design.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e80896987f49c5ac96a68c2ec3e1565
https://doi.org/10.1364/cleo_si.2012.cm4n.4
https://doi.org/10.1364/cleo_si.2012.cm4n.4
Autor:
Parisa Gandomkar Yarandi, Arash Mafi
Publikováno v:
Frontiers in Optics 2011/Laser Science XXVII.
We show that the finiteness of the cladding diameter is essential in determining the physical properties, especially the beam quality factor of the gain-guided index-antiguided (GG-IAG) fibers.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::967fc405de3f8c25a82e9afa5711a0fc
https://doi.org/10.1364/fio.2011.fwe2
https://doi.org/10.1364/fio.2011.fwe2
Autor:
Parisa Gandomkar Yarandi, Arash Mafi
Publikováno v:
Frontiers in Optics 2010/Laser Science XXVI.
We report on the birefringence caused by the anisotropy of the refractive index profile of a PCF single lattice unit in comparison to the birefringence caused by the underlying lattice shape and core shape asymmetries.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a662bca4a62678dea722f36bd613cefd
https://doi.org/10.1364/fio.2010.ftuh3
https://doi.org/10.1364/fio.2010.ftuh3
The beam-quality factor M(2) for the fundamental LP01 mode of a step-index fiber is calculated in the presence of gain, in a closed form, as a function of the complex generalized V number. It is shown that the M(2) value of a single-mode gain-guided
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9cb72190882099b126947a2a97094937
Autor:
Parisa Gandomkar Yarandi, Arash Mafi, Salman Karbasi, Craig R. Mirr, Karl W. Koch, Ryan J. Frazier
Publikováno v:
Optics Express. 20:18692
We recently reported the observation of transverse Anderson localization as the waveguiding mechanism in optical fibers with random transverse refractive index profiles [Opt. Lett. 37, 2304 (2012)]. Here, we explore the impact of the design parameter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f4577441cc71b87d231bdb78469d13a
https://doi.org/10.1364/oe.20.018692
https://doi.org/10.1364/oe.20.018692
Publikováno v:
Journal of the Optical Society of America B. 28:2430
The beam quality factor $M^2$ for the fundamental LP01 mode of a step-index fiber with a finite cladding diameter is calculated in the presence of gain, in a closed form, as a function of the complex generalized V-number. It is shown that the convent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::259e2cc3b7efdfaa63e4a423555cb6c3
https://doi.org/10.1364/josab.28.002430
https://doi.org/10.1364/josab.28.002430