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  • Open AccessOpen Access

    ARTICLE

    Observing Wave/Particle Duality of Light Using Topological Charge

    Olivier EMILEa,*, Janine EMILEb
    Journal of Advanced Optics and Photonics, Vol.1, No.3, pp. 157-171, 2018, DOI:10.32604/jaop.2018.03886
    Abstract Wave particle duality, also called complementarity, is deeply rooted in the heart of quantum theory. It is fully exemplied in the famous Wheeler’s delayed choice experiment where the choice of the wave nature (ability to interfere) or the particle like behavior (path distinguishability) is introduced a posteriori. We perform here a delayed choice experiment in a Mach-Zehnder interferometer, using a classical laser beam and twisted light in a given mode. We entangle the polarization and the twisted internal degrees of freedom, with the which-path-information external degree of freedom of the beam. The particle behavior of light arises from the quantization… More >

  • Open AccessOpen Access

    ARTICLE

    Photonic generation and detection of W-band OCDMA signals

    Morad Khossravi Eghbala,*, Mehdi Shadarama
    Journal of Advanced Optics and Photonics, Vol.1, No.3, pp. 173-201, 2018, DOI:10.32604/jaop.2018.04323
    Abstract We have designed and studied a W-band OCDMA radio-over-fiber system. To increase the number of channels, optical encoding and decoding are utilized. The theoretical analysis of generation, modulation and optical encoding of a signal is presented. Also, to confirm the theoretical analysis, the transmission of the encoded signal, decoding and its detection is simulated. Two optical codes (m-sequence and quaternary phase shift) with different code lengths are used and the results are presented. Simulation results for each set of codes are compared and the performance of each code is evaluated in the final bit error rate measurements. The quaternary phase… More >

  • Open AccessOpen Access

    ARTICLE

    Unexpected Broadband Optical Limiting Properties of Antimonene Quantum Dots

    Zhiyuan Wanga, Chenxia Hub, Shuai Fenga, Zhixin Yaoa, Peizhi Liua, Hua Wanga,*, Bingshe Xua, Min Zhaoa*, Junjie Guoa
    Journal of Advanced Optics and Photonics, Vol.1, No.3, pp. 203-215, 2018, DOI:10.32604/jaop.2018.04232
    Abstract Antimonene has been found to possess excellent nonlinear refractive and saturable absorption properties recently. To further investigate its optical limiting properties, we prepared uniform antimonene quantum dots (AMQDs) via a facile ionic liquid-assisted exfoliation method. Thereafter the nonlinear absorption of the atomically thin AMQDs was studied using the open aperture Z-scan technique in the nanosecond laser pulse regime. Z-scan measurements indicate that the prepared AMQDs exhibited superior optical limiting properties at 532 nm and 1064 nm excitation, implying the antimonene hold potential for developing broadband nonlinear optical devices. More >

  • Open AccessOpen Access

    ARTICLE

    Absorption Less All-Optical Memory Cell Based on Active Micro Ring Optical Integrators

    Nasibe Pasyar1,*
    Journal of Advanced Optics and Photonics, Vol.1, No.3, pp. 217-233, 2018, DOI:10.32604/jaop.2018.04369
    Abstract The three-level nano particles are doped in dual micro ring resonators of the proposed all-optical memory unit cell as the active gain segment in which the optical power loss is compensated due to the effect of lasing without inversion in doped quantum dots. The effect of parameters such as pumping rate and density of doped QDs are investigated. The optical integrator generates an optical step function to save input data. Also, the effect of electromagnetically induced transparency in three-level quantum dots is investigated as an on/off phase shifter for data reading at requested time. Both input data into the memory… More >

  • Open AccessOpen Access

    ARTICLE

    Novel Butterfly Photonic Crystal Fiber Structure with Negative Dispersion and High Non-Linearity

    Sabrina Abedina*, Avijit Hiraa, Sayeb Mohammad Tadvinb
    Journal of Advanced Optics and Photonics, Vol.1, No.3, pp. 235-249, 2018, DOI:10.32604/jaop.2018.03869
    Abstract Design flexibility and enormous optical properties of Photonic Crystal Fiber (PCF) suited for different types of applications have influenced researchers and engineers in enhancing present drawbacks. Photonic crystal fiber is based on periodic morphological microstructure of air-holes where different arrangement of air holes led to different types of structures. Several types of structures with different shapes like Hexagonal, Octagonal, Honeycomb, Circular etc. have been proposed earlier. In this research, a novel PCF structure is proposed with butterfly geometry being inspired by natural form of PCF. To validate the performance of the new design, optical properties like dispersion, confinement loss and… More >

  • Open AccessOpen Access

    ARTICLE

    Pivot-Point Beam Steerer

    Muhammad Irfan Kaleema,b,*, Ryan G. Morrisonb, David L. Guytonb
    Journal of Advanced Optics and Photonics, Vol.1, No.3, pp. 251-261, 2018, DOI:10.32604/jaop.2018.03983
    Abstract A simplified beam-steering mount for a mirror or beam splitter can be adjusted quickly with three degrees of freedom, pivoting about the single point in space where the chief ray of the light beam strikes the reflecting surface, before being locked in place by tightening a single screw. The design goal is demonstrated by multiple superimposed images taken with different positions of the mount. More >

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