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    Optical Spin Generated by a Modified Add-Drop Filter for Network Sensors
    (2014-01-01)
    Yupapin, P. P.
    Multiwavelength optical spin generated by using a dark-bright soliton pair within an optical device is proposed, where in this case the modified add-drop optical filter is used to construct and form a PANDA ring resonator. By using the dark-bright soliton pair control, the optical spins can also be constructed, which has an advantage as the dark and bright soliton pair (components) can propagate for long distance without electromagnetic interference. The coupling between soliton pair and metallic waveguide is also established, in which the transverse electric (TE) and magnetic (TM) fields can be detected, which can form the optical spin states, i.e., spin-up and spin-down and use to form the spin sensing applications. Several sensing configurations such as magnetic field, electrical current, and optical phase (wavelength) shift can be formed by using the generated optical spins within the PANDA ring circuit (coated and uncoated rings), which are described in detail here. © 2014 Elsevier Ltd All rights reserved.
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    Optical Spin Generated by a Modified Add-Drop Filter for Network Sensors
    (2014-01-01)
    Yupapin, P. P.
    Multiwavelength optical spin generated by using a dark–bright soliton pair within an optical device is proposed, where in this case the modified add-drop optical filter is used to construct and form a PANDA ring resonator. By using the dark–bright soliton pair control, the optical spins can also be constructed, which has an advantage as the dark and bright soliton pair (components) can propagate for long distance without electromagnetic interference. The coupling between soliton pair and metallic waveguide is also established, in which the transverse electric (TE) and magnetic (TM) fields can be detected, which can form the optical spin states, i.e., spin-up and spin-down and use to form the spin sensing applications. Several sensing configurations such as magnetic field, electrical current, and optical phase (wavelength) shift can be formed by using the generated optical spins within the PANDA ring circuit (coated and uncoated rings), which are described in detail here.
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    A proposal of all-wavelength optical amplifiers
    (2009-01-01)
    Pipatsart, Surasak
    ;
    Dunmeekaew, Ura
    ;
    Pornsuwancharoen, Nithiroth
    ;
    Yupapina, Preecha P.
    We have shown the interesting results of the optical signal amplifications using a Gaussian pulse propagating within a nonlinear microring resonator system. Several Gaussian pulses with different center wavelengths, for instance, 400-1,500 nm are investigated using the designed system. Results have shown that the optical signal amplification using the nonlinear ring resonator is plausible. By using the input power of 2 W, the optical output of 15 W is achieved. The interesting aspect is that all Gaussian input wavelengths can be amplified which can be useful for other wavelengths in future communication. © 2009 Elsevier B.V. All rights reserved.