Progress and technical challenge for planar waveguide devices: silica and silicon waveguides

Okamoto, K.

doi:10.1002/lpor.201100003

Cited by 83 publications

(46 citation statements)

References 25 publications

(38 reference statements)

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“…An improved spectral response can be synthesized with multiple cascaded MZIs by optimizing and controlling the coupling coefficients as well as the critical phase delays of the stages [12]. For example, a cascaded MZI filter with flattened spectral responses can be achieved, which is useful for two-channel optical interleavers [13][14][15][16]; however, it is still not easy to achieve multi-channel WDM (de)multiplexers by using MZIs. Alternatively, multi-beam interference is preferred because it enables narrow-passband wavelength filtering over a large wavelength period (i.e., the free spectral range, FSR).…”

Section: Silicon-based Wdm Filtersmentioning

confidence: 99%

“…With the current fabrication technologies, the roughness for the core sidewall of SOI nanowires is about 2 nm [16] and the fluctuation due to this core-width variation can be reduced by enlarging the core width in the straight regions [23]. Note that the top silicon thickness uniformity of 6-inch SOI wafers is about ± 2 nm and the uniformity is improved to about ± 1 nm in a area as small as 1 mm 2 [42,43].…”

Section: Awgsmentioning

confidence: 99%

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Silicon-based on-chip multiplexing technologies and devices for Peta-bit optical interconnects

2014

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An effective solution to enhance the capacity of an optical-interconnect link is utilizing advanced multiplexing technologies, like wavelength-division-multiplexing (WDM), polarization-division multiplexing (PDM), spatial-division multiplexing (SDM), bi-directional multiplexing, etc. On-chip (de)multiplexers are necessary as key components for realizing these multiplexing systems and they are desired to have small footprints due to the limited physical space for on-chip optical interconnects. As silicon photonics has provided a very attractive platform to build ultrasmall photonic integrated devices with CMOS-compatible processes, in this paper we focus on the discussion of silicon-based (de)multiplexers, including WDM filters, PDM devices, and SDM devices. The demand of devices to realize a hybrid multiplexing technology (combining WDM, PDM and SDM) as well as a bidirectional multiplexing technologies are also discussed to achieve Peta-bit optical interconnects.

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Section: Silicon-based Wdm Filtersmentioning

confidence: 99%

Section: Awgsmentioning

confidence: 99%

Silicon-based on-chip multiplexing technologies and devices for Peta-bit optical interconnects

2014

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“…Hence, a passive device was designed in this work to fulfill the basic function to split and combine optical signals. Several devices have been made to achieve this function such as thin film filters (TFF), micro ring resonators (MRR), Echelle gratings (EG) and AWG [4]. In this work, we are interested to design a demultiplexer based on AWG device because of the basic features of this device such as channel spacing and number of channels which are easily controlled.…”

Section: Introductionmentioning

confidence: 98%

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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“…PLCs are also widely utilized in wavelength-division multiplexing (WDM), time-divison multiplexing (TDM) systems and fiber-to-the-home (FTTH) access networks [1]. WDM systems have some key components that have the function to multiplexer/demultiplexer (mux/demux) signal that can increase transmission capacity on a single optical fiber.…”

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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Progress and technical challenge for planar waveguide devices: silica and silicon waveguides

Cited by 83 publications

References 25 publications

Silicon-based on-chip multiplexing technologies and devices for Peta-bit optical interconnects

Silicon-based on-chip multiplexing technologies and devices for Peta-bit optical interconnects

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

Investigation of AWG demultiplexer based SOI for CWDM application

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