Very Compact Arrayed-Waveguide-Grating Demultiplexer Using Si Photonic Wire Waveguides

Fukazawa, Tatsuhiko; Ohno, Fumiaki; Baba, Toshihiko

doi:10.1143/jjap.43.l673

Cited by 171 publications

(79 citation statements)

References 9 publications

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“…Low-loss propagation has been realized even at a bending with the radius as small as a few microns. Small sizes of ring resonators [15] and arrayed waveguide gratings (AWGs) [16] have been also realized for wavelength filters applicable to the wavelength division multiplexing (WDM) communications. These waveguide-based passive devices can be monolithically integrated on a Si platform, although there remain issues such as propagation losses due to the sidewall roughness (typically 1 dB/cm for channel WGs at present [17]) and the nanometer-scale error in WG size preventing the precise control of operation wavelengths in WDM filters.…”

Section: Properties Of Ge For Photonic Devicesmentioning

confidence: 99%

Ge-on-Si photonic devices for photonic-electronic integration on a Si platform

Ishikawa

Saito

2014

IEICE Electron. Express

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Section: Properties Of Ge For Photonic Devicesmentioning

confidence: 99%

Ge-on-Si photonic devices for photonic-electronic integration on a Si platform

Ishikawa

Saito

2014

IEICE Electron. Express

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“…The rib waveguide design structure makes the device become non-compact. Therefore, the total device size for both AWG designs is 20 mm x 15 mm where this design is much bigger as compared to previously developed AWG designs [9][10]. Table 1 shows the value of all design parameters.…”

Section: Resultsmentioning

confidence: 95%

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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“…Recently, it has become very important to reduce size and integrate devices in order to construct a lab-on-a-chip device. However, the primitive grating-based-spectrometers should have large enough size to support diffraction and imaging of light, thus they have an intrinsic limit to miniaturizing their operating size [1][2][3][4]. Many studies of the spectrometer with micrometer scale [5][6][7][8][9] have come out recently, while the sub-micrometer region is still a challenge to design and operate.…”

Section: Introductionmentioning

confidence: 99%

Sub-Micrometer-Sized Spectrometer by Using Plasmonic Tapered Channel-Waveguide

Lee

Kwon

2014

Journal of the Optical Society of Korea

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It has been a critical issue to reduce the size of spectrometers in many fields such as on-chip chemical and biological sensing. The proposed plasmonic channel-waveguide with a sub-micrometer width has a cutoff frequency which enables us to control wavelength dependent propagation properties. We focused on the capability of the waveguide for spectral-to-spatial mapping when the waveguide width changes gradually. In this paper, we propose a plasmonic tapered channel-waveguide structure as a compact spectrometer with a physical size of 0.24×2.0×0.20 μm 3 . The scattering point just above the tapered waveguide moves linearly depending on the wavelength of the injecting light. The spectral-to-spatial mapping can be improved by increasing the tapered length.

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Very Compact Arrayed-Waveguide-Grating Demultiplexer Using Si Photonic Wire Waveguides

Cited by 171 publications

References 9 publications

Ge-on-Si photonic devices for photonic-electronic integration on a Si platform

Ge-on-Si photonic devices for photonic-electronic integration on a Si platform

Investigation of AWG demultiplexer based SOI for CWDM application

Sub-Micrometer-Sized Spectrometer by Using Plasmonic Tapered Channel-Waveguide

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