A photonic crystal beam splitter used for light path multiplexing: synergy of TIR and PBG light guiding
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Beam splitter
Splitter
Optical path
Optical path length
A subscriber system of optical fiber network is presented. We address the design principles of the splitter-based passive optical network (PON) system developed by Telecommunication Laboratories (TL). The splitter-based PON architecture benefits from sharing optoelectronics and optical loop plants over a number of optical network units (ONUs). The PON system uses 1 X 8 optical couplers to form an 8-way split optical network. The system is capable of delivering 24 digital speech channels over one pair of optical fibers.
Splitter
Optical cross-connect
Optical Transport Network
10G-PON
Optical line termination
Beam splitter
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New approach for reducing of the dimensions of Y-branch optical power splitter by using a two-dimensional photonic crystal (PhC) is reported in this paper. Two-dimensional photonic crystal with photonic band gap was designed and simulated by plane wave expansion algorithm (PWE). This optical power splitter was designed for 1.31 μm wavelength range and it is based on AlxGax-1As/GaAs material platform. Optical power splitter was designed by RSoft's Photonic Component Design Suite and 3D simulations were performed by beam propagation method (BPM). The PhC implementation with suitable pattern in to Y-branch optical power splitter leads to spread the optical signal on it. It results in sharper division and it is way how to decrease dimensions of optical power splitter. Position of PhC in structure of optical power splitter can change splitting ratio.
Splitter
Beam splitter
Optical power
Beam propagation method
Plane wave expansion
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Due to wide range of advantages of polymer optical fiber (POF), POFs are now utilised as basic material to fabricate optical splitter. In order to produce the economical device, the splitter has been fabricated by the homemade fusion technique. Red LED with 650 nm wavelength has been emitted through the splitter for the purpose of characterization to determine the power efficiency of the splitter. The parameters, such as optical output power, POFs' attenuation characteristics and power losses on the network were all observed. The goal of this study is to analyse the improvement of power efficiency of the handmade optical splitter after the homemade fusion technique has been improvised. The splitter, whose maximum power efficiency could initially be reached up to 40%, then improved increasingly with the increase of 20% through improvised fusion skills. This paper highlights that the great effectiveness of homemade fusion technique might lead to the production of low-cost POF-based optical splitter with high-efficiency.
Splitter
Optical power
Beam splitter
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Though in many applications in optoelectronics light amplitude is the most important parameter for carrying the information flow, in some cases the phase or the polarisation of the guided waves is more relevant (optical sensors, Faraday rotators, coherent telecommunications...). Here we report on a polarisation beam splitter based on a Y-fed directional coupler with propagation along the Z axis of a LiNb03 crystal.
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Beam splitter
Integrated Optics
Faraday cage
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In this paper, review and analysis of photonic crystal beam splitter is done for optical communication applications. Based on the study of different beam splitters, the performance of two dimensional (2-D) photonic crystal (PhC) 1×8 beam splitter is discussed. By using directional coupler and Y-junction, nearly equal output power at all the output ports of 1×8 beam splitter is achieved. This uniform splitting has been achieved on the both sides of input waveguide due to the symmetry of the structure. The finite difference time domain (FDTD) method is used to simulate and analyze the splitting properties of the beam splitter. The photonic band gap (PBG) has been calculated by utilizing plane wave expansion (PWE) method. The rods are elliptical in shape. The number of rods are 41 and 26 in the x and z directions respectively. The size of this splitter is around 363 μm 2 . Therefore, it is ultra-compact component and it may be useful in optical communication applications and photonic integrated circuits.
Beam splitter
Splitter
Plane wave expansion
Beam propagation method
Waveguide
Rod
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As demands for Plastic Optical Fiber (POF) rise up in optical data communication system, POF are now being applied as base material for passive optical splitter. In order to produce the economical passive device, optical 1x3 splitters have been fabricated four times through handwork fusion. Besides, red LED with wavelength of 650 nm has been transmitted into splitter for the purpose of characterization testing in order to analyze the level of power efficiency of each splitter. As result, the latest 1x3 splitter reveal that maximum power could increasingly be reached up to 60%. This paper highlights that fusion technique by handwork is realiable fabrication method rather using expensive machine to fabricate POF-based optical splitter.
Splitter
Optical power
Beam splitter
Optical cross-connect
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The most common application of optical Y-splitters is their use in FTTx networks. It allows several customers to share the same physical medium, bringing high-speed networking, digital television and telephone services to residences using fiber-optic cables. The task of the optical splitters in such FTTH networks is to split one optical signal in many identical signals bringing for example the same TV signal in different households. Of course, the more buildings can be served by one optical splitter the lower are the installation costs. Therefore, the special attention is paid mainly to the design of high channel optical splitters presenting the serious challenge for the professional designers. In this paper a new Y-branch shape is proposed for 1×32 Y-branch splitter ensuring better splitting properties compared to the one recommended by ITU, in terms of their performance in transmission systems using wavelength division multiplexing.
Splitter
Waveguide
Integrated Optics
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We propose an intelligent splitter monitor based on a remote optical powering solution to detect the connectivity status of the customer premises equipment to the splitter ports within the optical distribution network.
Splitter
Optical cross-connect
Beam splitter
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Splitter
SIGNAL (programming language)
Beam splitter
Splitter plate
Port (circuit theory)
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In this paper, an optical NIM splitter is introduced and numerically simulated using the beam propagation method (BPM). The NIM splitter has many features including the increased security provided to propagating signals compared to the conventional PIM splitter where the later depends on the mechanism of internal reflection while the NIM splitter depends on focusing the guided optical beam inside the guiding NIM region. Another feature is that from the simulation it is noticed that the relative efficiency of NIM power output {=(output NIM power-output PIM power)/output PIM power} is very high. In this particular study, the relative efficiency of NIM is 59.4% at a width between the splitter output branches of 56 mum. As the width between the output branches increases, the relative efficiency of NIM splitter significantly improves.
Splitter
Beam splitter
Optical power
Reflection
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