PHASAR-based WDM-devices: Principles, design and applications

Smit, M.K.; Dam, C. van

doi:10.1109/2944.577370

Cited by 784 publications

(347 citation statements)

References 99 publications

(111 reference statements)

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“…Similarly, very compact photonic lattice-based add/drop multiplexers have been proposed [125]. The hope is that this type of device will be able to perform operations such as wavelength division multiplexing on a few square microns of surface area, instead of the square millimetres or centimetres currently required [126].…”

Section: Photonic Vlsimentioning

confidence: 99%

Photonic crystals in the optical regime â past, present and future

Krauss

Rue

1999

Progress in Quantum Electronics

442

141

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During the last decade, photonic crystals, also known as photonic microstructures or photonic bandgap structures, have matured from an intellectual curiosity concerning electromagnetic waves to a "eld with real applications in both the microwave and optical regime. In this review, we shall focus on progress and the prospects for semiconductor structures that mainly involve guided modes interacting with periodic structures, but we also evaluate alternative material systems and fabrication methods, e.g. those based on self-organisation. We shall go from basic concepts, via a discussion of the state of the art, to device applications. Naturally, the discussion of the applications will be more speculative, but we attempt to evaluate the real prospects o!ered by photonic crystals at optical frequencies while considering practical limitations. In doing so, we identify a variety of areas such as the combination of quantum dot light emitters with photonic crystals that seem particularly promising. We discuss the prospects for enhanced light}matter interactions in photonic crystals and the related material and design issues. Overall, the aim of this review is to introduce the reader to the concepts of photonic crystals, describe the state of the art and attempt to answer the question of what uses these peculiar structures may have.

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Section: Photonic Vlsimentioning

confidence: 99%

Photonic crystals in the optical regime â past, present and future

Krauss

Rue

1999

Progress in Quantum Electronics

442

141

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“…These components are such as the Arrayed Waveguide Grating (AWG), Echelle gratings, ring resonators and lattice form filters. Actually, the research on mux/demux that focused on grating based and phased array (PHASAR) based devices were developed since 1990 [2]. Silica was the first material that was widely used in developing AWGs.…”

Section: Introductionmentioning

confidence: 99%

Investigation of AWG demultiplexer based SOI for CWDM application

et al. 2017

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Abstract. 9-channel Arrayed Waveguide Grating (AWG) demultiplexer for conventional and tapered structure were simulated using beam propagation method (BPM) with channel spacing of 20 nm. The AWG demultiplexer was design using high refractive index (n~3.47) material namely silicon-on-insulator (SOI) with rib waveguide structure. The characteristics of insertion loss, adjacent crosstalk and output spectrum response at central wavelength of 1.55 μm for both designs were compared and analyzed. The conventional AWG produced a minimum insertion loss of 6.64 dB whereas the tapered AWG design reduced the insertion loss by 2.66 dB. The lowest adjacent crosstalk value of -16.96 dB was obtained in the conventional AWG design and this was much smaller compared to the tapered AWG design where the lowest crosstalk value is -17.23 dB. Hence, a tapered AWG design significantly reduces the insertion loss but has a slightly higher adjacent crosstalk compared to the conventional AWG design. On the other hand, the output spectrum responses that are obtained from both designs were close to the Coarse Wavelength Division Multiplexing (CWDM) wavelength grid.

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“…Although [3] provided a precise mathematical derivation of the phase matching condition, the present approach stands out in making use of a simplistic geometrical analysis of the Rowland and Grating circle construction based on scalene triangles in deriving the phase match condition.…”

Section: Introductionmentioning

confidence: 99%

“…The output is taken as an image of the input at each output waveguides, after going through a region of free space propagation, which is to be analyzed based on basic electromagnetic theory and diffraction [3]. This work focuses on developing an approximate but effective geometrical approach for AWG design based on trigonometric principles.…”

Section: Introductionmentioning

confidence: 99%

“…Wavelength demultiplexers, since the early 1990s, have focused on grating-based and Phased Array based devices, [PHASAR] [3] which are imaging devices that disperse the input into spatially separate output foci. The main difference between the two is that grating-based devices use vertical gratings (reflective/transitive) for dispersion and focusing, while the PHASARS uses an array of waveguides, with length chosen properly to provide required dispersion and imaging.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Geometrical Model for Arrayed Waveguide Grating Based Optical Multiplexer/Demultiplexer

Dasan¹,

Kumar²,

Pande³

et al. 2014

PIER M

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Abstract-This paper mathematically models the operation of Arrayed Waveguide Grating (AWG) based multiplexer (mux) and demultiplexer (demux) used in optical networks. In WDM networks, the optical mux and demux play a crucial role of managing the aggregation and segregation of wavelengths for networking applications. A simple and intuitive model of AWG based mux design is discussed in this work. This model assumes that the device is linear, in which the principle of superposition is valid, and the primary emphasis is given to the optical power gain of the individual wavelengths. By using this model, one can exactly estimate the individual and overall power associated with each of the multiplexed wavelengths. The developed model was evaluated with experimental results using AWG based multiplexers. The experiments were repeated for different test cases with various power input levels and multiplexer configurations. It was found that the developed model provided a good approximation to the actual AWG mux/demux.

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PHASAR-based WDM-devices: Principles, design and applications

Cited by 784 publications

References 99 publications

Photonic crystals in the optical regime â past, present and future

Photonic crystals in the optical regime â past, present and future

Investigation of AWG demultiplexer based SOI for CWDM application

A Geometrical Model for Arrayed Waveguide Grating Based Optical Multiplexer/Demultiplexer

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PHASAR-based WDM-devices: Principles, design and applications

Cited by 784 publications

References 99 publications

Photonic crystals in the optical regime â past, present and future

Photonic crystals in the optical regime â past, present and future

Investigation of AWG demultiplexer based SOI for CWDM application

A Geometrical Model for Arrayed Waveguide Grating Based Optical Multiplexer/Demultiplexer

Contact Info

Product

Resources

About

Photonic crystals in the optical regime â past, present and future

Photonic crystals in the optical regime â past, present and future