Soliton dynamics in one-dimensional waveguide arrays with saturable, self-defocusing nonlinearity
Authors
Stepić, MilutinBeličev, Petra
Maluckov, Aleksandra
Ilić, Igor
Kip, D.
Kanshu, A.
Rüter, C. E.
Shandarov, V.
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The last two decades have witnessed a strong interest in periodic optical systems, such as waveguide arrays and photonic crystals [1, 2]. These systems exhibit many attractive features for which no counterpart exists in homogeneous media, including forbidden gaps in their transmission spectra [3], existence of strongly localized nonlinear modes (discrete and gap solitons) and the exciting possibility of controlling diffraction. One-dimensional waveguide arrays consisting of evanescently coupled parallel channels are fabricated in various photorefractive materials, including photovoltaic lithium niobate crystal possessing saturable self-defocusing nonlinearity [4] that is responsible for solitons’ stabilization and their enhanced mobility [5]. We analyze both experimentally and theoretically soliton dynamics in two types of photonic lattices: in uniform waveguide arrays with locally introduced coupling defect [6, 7] and in more complex, binary lattices with alternating spacing between c...hannels of constant width [8, 9]. Coupling defect interrupts the lattice periodicity and offer an additional physical mechanism for light confinement, acting as a waveguide in whose vicinity light can be confined, causing the existence of the so-called, defect modes inside the bandgaps. On the other hand, an extra periodicity opens an additional mini-gap where light propagation is again forbidden, thus allowing for extended nonlinear interaction of light with binary lattices and existence of novel, stable types of lattice solitons that may be potentially useful for the development of future all-optical photonic devices
Source:
SNDMIA 2012 : Symposium Nonlinear Dynamics - Milutin Milanković, Multidisciplinary and Interdisciplinary Applications : 8th Serbian Symposium in area of Non-linear Sciences : Booklet of Abstracts, 2012, 57-57Publisher:
- Belgrade : Mathematical Institute SANU
Funding / projects:
- Dynamics of hybrid systems with complex structures. Mechanics of materials. (RS-MESTD-Basic Research (BR or ON)-174001)
Note:
- Symposium Nonlinear Dynamics - Milutin Milanković, Multidisciplinary and Interdisciplinary Applications : 8th Serbian Symposium in area of Non-linear Sciences : October 1-5, 2012, Belgrade
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VinčaTY - CONF AU - Stepić, Milutin AU - Beličev, Petra AU - Maluckov, Aleksandra AU - Ilić, Igor AU - Kip, D. AU - Kanshu, A. AU - Rüter, C. E. AU - Shandarov, V. PY - 2012 UR - https://vinar.vin.bg.ac.rs/handle/123456789/13471 AB - The last two decades have witnessed a strong interest in periodic optical systems, such as waveguide arrays and photonic crystals [1, 2]. These systems exhibit many attractive features for which no counterpart exists in homogeneous media, including forbidden gaps in their transmission spectra [3], existence of strongly localized nonlinear modes (discrete and gap solitons) and the exciting possibility of controlling diffraction. One-dimensional waveguide arrays consisting of evanescently coupled parallel channels are fabricated in various photorefractive materials, including photovoltaic lithium niobate crystal possessing saturable self-defocusing nonlinearity [4] that is responsible for solitons’ stabilization and their enhanced mobility [5]. We analyze both experimentally and theoretically soliton dynamics in two types of photonic lattices: in uniform waveguide arrays with locally introduced coupling defect [6, 7] and in more complex, binary lattices with alternating spacing between channels of constant width [8, 9]. Coupling defect interrupts the lattice periodicity and offer an additional physical mechanism for light confinement, acting as a waveguide in whose vicinity light can be confined, causing the existence of the so-called, defect modes inside the bandgaps. On the other hand, an extra periodicity opens an additional mini-gap where light propagation is again forbidden, thus allowing for extended nonlinear interaction of light with binary lattices and existence of novel, stable types of lattice solitons that may be potentially useful for the development of future all-optical photonic devices PB - Belgrade : Mathematical Institute SANU C3 - SNDMIA 2012 : Symposium Nonlinear Dynamics - Milutin Milanković, Multidisciplinary and Interdisciplinary Applications : 8th Serbian Symposium in area of Non-linear Sciences : Booklet of Abstracts T1 - Soliton dynamics in one-dimensional waveguide arrays with saturable, self-defocusing nonlinearity SP - 57 EP - 57 UR - https://hdl.handle.net/21.15107/rcub_vinar_13471 ER -
@conference{ author = "Stepić, Milutin and Beličev, Petra and Maluckov, Aleksandra and Ilić, Igor and Kip, D. and Kanshu, A. and Rüter, C. E. and Shandarov, V.", year = "2012", abstract = "The last two decades have witnessed a strong interest in periodic optical systems, such as waveguide arrays and photonic crystals [1, 2]. These systems exhibit many attractive features for which no counterpart exists in homogeneous media, including forbidden gaps in their transmission spectra [3], existence of strongly localized nonlinear modes (discrete and gap solitons) and the exciting possibility of controlling diffraction. One-dimensional waveguide arrays consisting of evanescently coupled parallel channels are fabricated in various photorefractive materials, including photovoltaic lithium niobate crystal possessing saturable self-defocusing nonlinearity [4] that is responsible for solitons’ stabilization and their enhanced mobility [5]. We analyze both experimentally and theoretically soliton dynamics in two types of photonic lattices: in uniform waveguide arrays with locally introduced coupling defect [6, 7] and in more complex, binary lattices with alternating spacing between channels of constant width [8, 9]. Coupling defect interrupts the lattice periodicity and offer an additional physical mechanism for light confinement, acting as a waveguide in whose vicinity light can be confined, causing the existence of the so-called, defect modes inside the bandgaps. On the other hand, an extra periodicity opens an additional mini-gap where light propagation is again forbidden, thus allowing for extended nonlinear interaction of light with binary lattices and existence of novel, stable types of lattice solitons that may be potentially useful for the development of future all-optical photonic devices", publisher = "Belgrade : Mathematical Institute SANU", journal = "SNDMIA 2012 : Symposium Nonlinear Dynamics - Milutin Milanković, Multidisciplinary and Interdisciplinary Applications : 8th Serbian Symposium in area of Non-linear Sciences : Booklet of Abstracts", title = "Soliton dynamics in one-dimensional waveguide arrays with saturable, self-defocusing nonlinearity", pages = "57-57", url = "https://hdl.handle.net/21.15107/rcub_vinar_13471" }
Stepić, M., Beličev, P., Maluckov, A., Ilić, I., Kip, D., Kanshu, A., Rüter, C. E.,& Shandarov, V.. (2012). Soliton dynamics in one-dimensional waveguide arrays with saturable, self-defocusing nonlinearity. in SNDMIA 2012 : Symposium Nonlinear Dynamics - Milutin Milanković, Multidisciplinary and Interdisciplinary Applications : 8th Serbian Symposium in area of Non-linear Sciences : Booklet of Abstracts Belgrade : Mathematical Institute SANU., 57-57. https://hdl.handle.net/21.15107/rcub_vinar_13471
Stepić M, Beličev P, Maluckov A, Ilić I, Kip D, Kanshu A, Rüter CE, Shandarov V. Soliton dynamics in one-dimensional waveguide arrays with saturable, self-defocusing nonlinearity. in SNDMIA 2012 : Symposium Nonlinear Dynamics - Milutin Milanković, Multidisciplinary and Interdisciplinary Applications : 8th Serbian Symposium in area of Non-linear Sciences : Booklet of Abstracts. 2012;:57-57. https://hdl.handle.net/21.15107/rcub_vinar_13471 .
Stepić, Milutin, Beličev, Petra, Maluckov, Aleksandra, Ilić, Igor, Kip, D., Kanshu, A., Rüter, C. E., Shandarov, V., "Soliton dynamics in one-dimensional waveguide arrays with saturable, self-defocusing nonlinearity" in SNDMIA 2012 : Symposium Nonlinear Dynamics - Milutin Milanković, Multidisciplinary and Interdisciplinary Applications : 8th Serbian Symposium in area of Non-linear Sciences : Booklet of Abstracts (2012):57-57, https://hdl.handle.net/21.15107/rcub_vinar_13471 .