A wavelength routing device by using cyclic AWGs and tunable FBGs

Liang, Tsair–Chun; Tsai, Cheng-Mu; Wu, Bo-Cong

doi:10.1016/j.yofte.2013.01.001

Cited by 11 publications

(3 citation statements)

References 11 publications

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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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Section: Introductionmentioning

confidence: 99%

Design of Novel Fiber Optical Flexible Routing System

Wu¹,

Liang²

2019

Applied Sciences

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“…Due to the growing demand for network communications capacity, dense wavelength division multiplexing (DWDM) [1,2] has emerged as vital component for optical fiber networks. Several techniques for flexibility in all-optics dynamic networks have been engaged in DWDM systems [3,4]. And how to increase the number of channels is an important issue [5].…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of a Novel 25 GHz Interleaver for DWDM Applications with Two Ring Configurations

Liang

Chen

2015

Mathematical Problems in Engineering

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We present a novel scheme of an excellent flat-top 25 GHz optical interleaver based on two ring configurations. And the Advanced Systems Analysis Program (ASAP) optical modeling software has been utilized for the interleaver design. The optical path difference for interference and the phase shift are provided by the interferometer with two birefringent crystals and dual-ring arrangement. The proposed structure exhibits the passband utilization of more than 90% and the channel isolation greater than 95 dB within the C-band. Furthermore, we improve the dispersion performance by employingλ/6 wave plates as birefringent compensators for interleavers. The research results illustrate that our proposed scheme with compensator can improve the dispersion of more than 85.8%. Comparing the performance with the previous studies of optical interleavers with birefringent crystal and ring structure, the proposed system can achieve an excellent 25 GHz multichannel filter for dense wavelength division multiplexing (DWDM) transmission systems.

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“…Optical switches are the devices that route an optical signal from one or more input ports to one or more output ports [7]. Their characteristics play important roles in optical networks as it determines the optical networks performance, optical crossconnection, signal transmission, wavelength division multiplexing, information exchange and optical line protection [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Preparation of Waveguide Polymer and its Simulation Study of Thermo-Optic Switch at the Infrared Communication Wavelength 1.55 μm

Wu¹,

Wang²

2014

Zeitschrift Für Physikalische Chemie

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In the current work, a novel benzothiazole waveguide polymer (ABHEPU) consisting of azo chromophore molecule 2 -[4'-(N, N-hydroxyethyl)-amino-phenyl azo]-6-nitrobenzothiazole (HEPNBT) was prepared for the simulation of thermo-optic switch at the infrared communication wavelength 1.55 μm.The thermal property of ABHEPU was measured using the differential scanning calorimeter (DSC) and thermal gravimetric analysis (TGA). The glass transition temperature ( ) and decomposition temperature ( ) at 5% mass loss are 110 ∘ C and 266 ∘ C, respectively. The refractive indices of ABHEPU waveguide polymer were determined at different wavelength (532 nm, 650 nm or 850 nm) and temperature using attenuated total reflection (ATR) technique. The transmission loss, dispersion curves and Sellmyer coefficients of ABHEPU polymer were investigated from CCD digital imaging devices and Sellmyer equation, respectively. Polymeric 1 × 2 and Mach-Zehnder interferometer (MZI) thermo-optic switches based on the ABHEPU as waveguide material at the infrared communication wavelength 1.55 μm were designed and simulated. Simulation results with FD-BPM method showed that the power consumption of 1 × 2 thermo-optic switch is only 0.58 mW; and the response times of 1 × 2 and MZI switches are 12 ms and 3.0 ms for the designed device. The switching time of the prepared ABHEPU polymer is much shorter than that of silica substrate.

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A wavelength routing device by using cyclic AWGs and tunable FBGs

Cited by 11 publications

References 11 publications

Design of Novel Fiber Optical Flexible Routing System

Design of Novel Fiber Optical Flexible Routing System

Design and Analysis of a Novel 25 GHz Interleaver for DWDM Applications with Two Ring Configurations

Preparation of Waveguide Polymer and its Simulation Study of Thermo-Optic Switch at the Infrared Communication Wavelength 1.55 μm

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A wavelength routing device by using cyclic AWGs and tunable FBGs

Cited by 11 publications

References 11 publications

Design of Novel Fiber Optical Flexible Routing System

Design of Novel Fiber Optical Flexible Routing System

Design and Analysis of a Novel 25 GHz Interleaver for DWDM Applications with Two Ring Configurations

Preparation of Waveguide Polymer and its Simulation Study of Thermo-Optic Switch at the Infrared Communication Wavelength 1.55 μm

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Preparation of Waveguide Polymer and its Simulation Study of Thermo-Optic Switch at the Infrared Communication Wavelength 1.55 μm