Demonstration of mode conversion using anti-symmetric waveguide Bragg gratings

Castro, José M.; Geraghty, David F.; Honkanen, Seppo; Greiner, C.; Iazikov, Dmitri; Mossberg, T. W.

doi:10.1364/opex.13.004180

Cited by 71 publications

(47 citation statements)

References 12 publications

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“…10 In this paper we show the design and experimental results of a novel optical add-drop multiplexer (OADM) fabricated with an antisymmetric waveguide Bragg grating. 11 Modeling 11,12 and recent experimental demonstrations 13,14 of this grating show that reflection with mode conversion in a two-mode waveguide can be achieved without the spurious reflections produced by the TBGs.…”

Section: Introductionmentioning

confidence: 76%

Optical add-drop multiplexers based on the antisymmetric waveguide Bragg grating

et al. 2006

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A novel optical add-drop multiplexer (OADM) based on a null coupler with an antisymmetric grating was designed and experimentally demonstrated. The antisymmetric grating exclusively produces a reflection with mode conversion in a two-mode waveguide. This improves the performance compared with previous demonstrations that used tilted Bragg gratings. Our design minimizes noise and cross talk produced by reflection without mode conversion. In addition, operational bandwidth and, versatility are improved while the compactness and simplicity of the null coupler OADM are maintained.

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Section: Introductionmentioning

confidence: 76%

Optical add-drop multiplexers based on the antisymmetric waveguide Bragg grating

et al. 2006

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“…In addition, it can be inferred that an effective one-way mode-conversion from even type to odd type can also be realized by our proposed structure. Such an even-odd mode conversion has been extensively investigated in integrated optics, because it plays a very important 7 role in increasing transmission capacity by carrying information on different modes with only a single wavelength carrier [59][60][61][62][63][64] . This mode conversion concept can be used in many applications such as subwavelength edge detection 65 , cavity biosensors 66 , and direction selective structures 67 .…”

Section: Resultsmentioning

confidence: 99%

Acoustic one-way mode conversion and transmission by sonic crystal waveguides

Ouyang

et al. 2016

Journal of Applied Physics

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Abstract:We proposed a scheme to achieve one-way acoustic propagation and even-odd mode switching in two mutually perpendicular sonic crystal waveguides connected by a resonant cavity.The even mode in the entrance waveguide is able to switch to odd mode in the exit waveguide through a symmetry match between the cavity resonant modes and the waveguide modes. Conversely, the odd mode in the exit waveguide is unable to be converted into the even mode in the entrance waveguide as incident waves and eigenmodes are mismatched in their symmetries at the waveguide exit. This one-way mechanism can be applied to design an acoustic diode for acoustic integration devices and can be used as a convertor of the acoustic waveguide modes.1 Shiliang Ouyang and Hailong He contributed equally to this work. a)

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“…The fabrication of devices that can be used as a core structure for the ciphers was demonstrated using ion-exchange techniques and photosensitive-glass [24] and silica-on-silicon technology [25], [26]. The signal can be encoded and redirected by this compact device [26].…”

Section: A Code Reconfigurationmentioning

confidence: 99%