Resonant tunneling three-waveguide polarization splitter

Thyagarajan, K.; Pilever, S.

doi:10.1109/50.166772

Cited by 14 publications

(5 citation statements)

References 15 publications

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“…In this paper, we report the fabrication tolerance and loss analysis of a short and compact grating waveguide polarisation splitter (Yusoff et al 2007) based on resonant tunnelling (Thyagarajan & Pilevar 1992) using material with a low refractive index of 1.458 on silica substrate with a refractive index of 1.444. Previously designed singlemode polarisation splitters based on resonant tunnelling mechanism (Thyagarajan & Pilevar 1992;Huang et al 2005) used three channel waveguides; however, it was necessary to use different optical material for the resonator waveguide. Fabrication tolerance was very strict and the accuracy needed for high index central layer thickness was very high (Thyagarajan & Pilevar 1992).…”

Section: Date Of Receiptmentioning

confidence: 99%

“…Previously designed singlemode polarisation splitters based on resonant tunnelling mechanism (Thyagarajan & Pilevar 1992;Huang et al 2005) used three channel waveguides; however, it was necessary to use different optical material for the resonator waveguide. Fabrication tolerance was very strict and the accuracy needed for high index central layer thickness was very high (Thyagarajan & Pilevar 1992). A fabrication tolerant polarisation splitter (Augustin et al 2007) reportedly used a multimode resonator waveguide and its coupling length was in the order of about 3 mm.…”

Section: Date Of Receiptmentioning

confidence: 99%

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ASM Sci. J., Vol. 2, No. 2, 2008

Liki

2008

ASMScJ

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In this fourth issue and second volume of the Journal, an attempt is made to introduce the thematic issue of photonics. Theterm describes the ‘combination of light technologies and electronics in telecommunication’ which now can be defined ‘asthe field in science, medicine and technology investigating and using laser light’.ASM Science Journal is mainly a multi-disciplinary one but periodically, adhering to the aims and objectives, a collectionof articles devoted to a single subject area is deemed fit to be published. This is to address current impending issues andthe demands cum needs of the scientific community and society pertaining to a specific area of a scientific discipline. Thenext thematic issue will be on Antarctic research.The Editorial Board is grateful to the guest editor, Prof Harith Ahmad of University of Malaya and his committee comprisingexperts in the area of photonics who selected, reviewed and approved nine research articles (pp. 107–168), covering amyriad of topics on tuning range characteristics, multiwavelength fiber laser, design of variable gain-flattened EDFA,wideband double-pass Raman fiber amplifier, chromatic dispersion measurement technique, the effect of fiber length onSNR in laser linewidth measurement, fabrication tolerance, loss analysis, grating waveguide, polarisation splitter, resonanttunnelling, Er-Yb co-doped phosphate DFB laser, optical code generating device and erbium/ytterbium co-doped fiberamplifier, etc.To complement the R&D articles on photonics, a topic on science forum (pp. 169–182) which describes laser research atthe University of Technology Malaysia, addressing the broad field of spectrum from laser materials, electronic devicesand laser application was also included.

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Section: Date Of Receiptmentioning

confidence: 99%

Section: Date Of Receiptmentioning

confidence: 99%

ASM Sci. J., Vol. 2, No. 2, 2008

Liki

2008

ASMScJ

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“…Many integrated photonic and communication device characteristics are sensitive to the polarization state of light and require different polarizations for different applications. Polarization splitters play a significant role in enhancing the characteristics of such devices [1][2][3][4][5]. Such splitters based on waveguides separate the input light into two orthogonal polarizations at the output.…”

Section: Introductionmentioning

confidence: 99%

Polarization splitter based on a three waveguide directional coupler using quantum mechanical analogies

Aashna

Thyagarajan

2017

J. Opt.

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We propose a novel waveguide polarization splitter based on the optical analogue of two-photon Rabi oscillations and stimulated Raman adiabatic passage in a three waveguide directional coupler. Both these processes are borrowed from three level quantum mechanical atomic systems, in which an intermediate level is used to transfer the population from one state to another without any population occupation in the intermediate level. To show the practical feasibility of the device, simulations have been carried out on waveguides in lithium niobate and we show that two orthogonal polarizations can be separated at the output using the proposed three waveguide structures. We also show that the proposed structure is robust against changes in phase mismatch parameters, as well as wavelength of operation.

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“…P OLARIZATION beam splitters are important integratedoptic devices in fiber sensors and coherent optical communication systems. Polarization splittings can be realized by either manipulating different beat lengths for two polarizations [1]- [4], by designing the waveguides optically identical for one polarization while nonidentical for the other [5]- [9], or by employing resonant tunneling that inserts a middle high-index layer as the tunneling layer allowing complete coupling for one polarization while preventing coupling for the other [10].…”

Section: Introductionmentioning

confidence: 99%

Antiresonant reflecting optical waveguides polarization beam splitters

Huang

Jang

Hsu

et al. 2006

J. Lightwave Technol.

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Three different configurations of polarization beam splitters based on antiresonant reflecting optical waveguide (ARROW) structures are proposed. The polarization splittings are attained by utilizing various characteristics of basic ARROW and/or ARROW-B. In comparison with conventional waveguides, ARROW structures utilizing antiresonant reflection as the guiding mechanism can have large core sizes compatible with singlemode fibers and, thus, provide better coupling. Design principles and characteristics of these ARROW polarization beam splitters are discussed in detail, and the simulation results show that all these devices have good polarization discrimination with crosstalk < −20 dB.

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Resonant tunneling three-waveguide polarization splitter

Cited by 14 publications

References 15 publications

ASM Sci. J., Vol. 2, No. 2, 2008

ASM Sci. J., Vol. 2, No. 2, 2008

Polarization splitter based on a three waveguide directional coupler using quantum mechanical analogies

Antiresonant reflecting optical waveguides polarization beam splitters

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