Practical fabrication and analysis of an optimized compact eight-channel silicon arrayed-waveguide grating

Li, Hongqiang; Bai, Yaoting; Dong, Xiaopeng; Li, Enbang; Yang, Li; Zhou, Wenqian; Liu, Yu

doi:10.1117/1.oe.52.6.064602

Cited by 9 publications

(6 citation statements)

References 9 publications

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“…Apparently, the crosstalk improved from -15.02 dB [11] for 12-channels AWG to -31.26 dB for this work. Existing work [12][13]11] gave the crosstalk values of -15.02 dB to -23.1 dB and insertion loss of 1.5 dB to 6 dB as shown in Table II. By comparing the results, it is found that our device was comparable with existing work.…”

Section: B Awg Device: Results and Discussionmentioning

confidence: 96%

Performance on optical properties of AWG based on SOI demultiplexer and receiver sensitivity in CWDM system

Juhari

Menon

Ehsan

et al. 2015

2015 International Conference on Computer, Communications, and Control Technology (I4CT)

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Silicon-on-insulator (SOI) has become one of the popular material that is widely used to develop passive or active devices in application for modern photonics communication. Using SOI, we proposed a new double S-shaped Arrayed Waveguide Grating (AWG) with broad channel spacing of 20 nm (~2500 GHz). This SOI-based AWG device performed with low insertion loss of <3.74 dB for a total of 16 channels where it covers the wavelength from 1311 nm to 1611 nm. The successful design of SOI-based AWG was then applied in CWDM system configuration where 10 Gb/s and 40 Gb/s data rates were used with optimized thermal noise inside the InGaAs pin photodiode and InGaAs Avalanche Photodiode (APD) at the system receiver. The maximum length of fiber was investigated for both photodetectors before the signal degraded when the bit error rate (BER) became worse than 10 -9 . Apparently, the distance of fiber can reach over 50 km when InGaAs APD was used for this system. Overall, this device that was developed on SOI material possibly increased the transmission capacity for application in metro access network.

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Section: B Awg Device: Results and Discussionmentioning

confidence: 96%

Performance on optical properties of AWG based on SOI demultiplexer and receiver sensitivity in CWDM system

Juhari

Menon

Ehsan

et al. 2015

2015 International Conference on Computer, Communications, and Control Technology (I4CT)

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“…However, the AWG design results in values comparable with those produced by existing practical devices that have different channel spacing but are fabricated using the same material (SOI). 13,17,18 The lowest IL, with a higher adjacent XT, was obtained for an AWG design with a top Si layer thickness of 1.0 μm and a core width of 1.2 μm. The complete transmission spectrum of an 18-channel AWG is shown in Fig.…”

Section: Optimization Of Awg Design Layoutmentioning

confidence: 99%

Optimal design of linear tapered double S-shaped arrayed waveguide grating for broad channel spacing on silicon-on-insulator

Juhari¹,

Menon²,

Ehsan³

et al. 2014

Opt. Eng

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A linear tapered double S-shaped arrayed waveguide grating (AWG) was designed as an alternative to a U-shaped AWG, and a complete transmission spectrum for 18 channels of coarse wavelength-division multiplexing (CWDM) was demonstrated. The silicon-on-insulator based AWG with a rib waveguide structure with a broad channel spacing of 20 nm was designed to serve as a multiplexer/demultiplexer. A beam propagation method modeling simulation under transverse electric mode polarization over a free spectrum range of 700 nm was used for the design process. The geometrical dimensions of the AWG rib structure were optimized to achieve the lowest reported insertion loss of 1.07 dB and adjacent crosstalk of −38.83 dB. The influence of different etching depths on the top Si layer of the AWG for a constant core width of 0.6 μm as well as birefringence effects were also investigated. A transmission spectrum response at the output port close to the standard CWDM wavelength grid range of 1271 to 1611 nm with an average channel spacing of 2485 GHz was obtained. IntroductionSilicon-on-insulator (SOI) has become a popular choice of material in recent years because of its potential for use in the photonics components manufacturing industry, which uses a monolithic or hybrid integration assembly. Arrayed waveguide gratings (AWG)-based silicon waveguide structures functioning as multiplexers/demultiplexers (mux/ demux) are being widely employed in wavelength-division multiplexing (WDM) systems. There are several advantages in using SOI as a platform for photonics integration, such as low manufacturing costs due to the use of existing complementary metal oxide semiconductor fabrication technology, 1 compact devices, and high confinement of the optical mode. 2 Further, silicon has a high index contrast (Δn) and is transparent at infrared wavelengths, making it suitable for optical communication applications. By using these features of SOI materials, we designed and analyzed an SOI-based AWG mux/demux capable of splitting or combining the multiple signals in a single fiber utilized in coarse wavelength-division multiplexing (CWDM) systems.In this work, we optimized the geometrical rib waveguide structure and characterized the ideal parameters of a linear tapered double S-shaped AWG on an SOI platform to mitigate insertion loss (IL) and adjacent crosstalk (XT) in an 18-channel CWDM device with a channel spacing of 20 nm. The investigations were carried out by selecting the dimensions of the rib waveguide, which allows a single-mode condition where the ratio of the slab height (h) to the thickness of the top silicon (Si) guiding layer (H) or h∕H was in the range

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“…In DWDM optical networks, in order to upload/download the required signal wavelengths or to exchange the required signal wavelengths, this must be achieved by some common passive optical components, such as fiber Bragg grating (FBG), arrayed waveguide grating (AWG) [17][18][19], optical switches, optical circulators, and so on [20,21]. AWG is an important element commonly used to realize ROADM.…”

Section: Introductionmentioning

confidence: 99%

Design of Novel Fiber Optical Flexible Routing System

Wu¹,

Liang²

2019

Applied Sciences

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In this paper, we propose a new versatile routing device that utilizes arrayed waveguide gratings (AWGs), optical switches, and optical circulators to implement reconfigurable optical add/drop multiplexers (ROADMs), optical interleavers, and optical cross-connect (OXC). With the development of dense wavelength division multiplexing (DWDM) technology, ROADM and OXC technologies have also been put into practical use. Thus, the optical signal can be routed directly in the optical network according to its wavelength without the need for optical-electrical-optical (OEO) conversion. Although different optical network units (ONUs) have different bandwidth requirements, the use of optical interleavers has successfully solved the connection problem between old and new systems. According to the numerical experiments of static characteristics, the proposed routing device can effectively implement three different functionalities, thereby providing greater flexibility for fiber optic network applications.

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Practical fabrication and analysis of an optimized compact eight-channel silicon arrayed-waveguide grating

Cited by 9 publications

References 9 publications

Performance on optical properties of AWG based on SOI demultiplexer and receiver sensitivity in CWDM system

Performance on optical properties of AWG based on SOI demultiplexer and receiver sensitivity in CWDM system

Optimal design of linear tapered double S-shaped arrayed waveguide grating for broad channel spacing on silicon-on-insulator

Design of Novel Fiber Optical Flexible Routing System

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