Optimum optical power splitting ratio of decision driven phase-locked loop in BPSK optical homodyne receiver

1995 ◽  
Vol 13 (11) ◽  
pp. 2183-2190 ◽  
Author(s):  
S. Norimatsu
Keyword(s):  
Optical Power ◽  
Phase Locked Loop ◽  
Power Splitting ◽  
Splitting Ratio

Optical Power Splitter Integrated Chip with Large Tunable Range of Power Splitting Ratio

2021 ◽  
Vol 41 (6) ◽  
pp. 0623001
Author(s):  
廖莎莎 Liao Shasha ◽  
廖柯 Liao Ke ◽  
包航 Bao Hang ◽  
张甜甜 Zhang Tiantian ◽  
刘继伟 Liu Jiwei ◽  
...  
Keyword(s):  
Optical Power ◽  
Power Splitting ◽  
Power Splitter ◽  
Tunable Range ◽  
Splitting Ratio

scholarly journals Polarization-Insensitive and Broadband Optical Power Splitter With a Tunable Power Splitting Ratio

2017 ◽  
Vol 9 (3) ◽  
pp. 1-9 ◽  
Author(s):  
Xiuling Deng ◽  
Lianshan Yan ◽  
Hengyun Jiang ◽  
Wei Pan ◽  
Bin Luo ◽  
...  
Keyword(s):  
Optical Power ◽  
Power Splitting ◽  
Power Splitter ◽  
Splitting Ratio ◽  
Polarization Insensitive

MODELING AND DESIGN OF REALISTIC Si3N4-BASED INTEGRATED OPTICAL PROGRAMMABLE POWER SPLITTER

2010 ◽  
Vol 19 (02) ◽  
pp. 255-268
Author(s):  
H. P. URANUS ◽  
H. J. W. M. HOEKSTRA ◽  
R. STOFFER
Keyword(s):  
Phase Shift ◽  
Directional Coupler ◽  
Phase Shifter ◽  
Optical Power ◽  
Power Splitting ◽  
Device Structure ◽  
Power Splitter ◽  
Splitting Ratio ◽  
Integrated Optical ◽  
Mode Solver

Controllable splitting of optical power with a large splitting ratio range is often required in an integrated optical chip, e.g. for the readout of phase-shift in a slow-light sensor. In this work, we report the modeling and design of an integrated optical programmable power splitter consisting of a Y-junction with a programmable phase-shifter cascaded to a directional coupler. We used a vectorial mode solver, and a combination of a transfer matrix method with a 3D vectorial coupled-mode theory (CMT) to compute the power transfer ratio of a realistic device structure made of Si 3 N 4, TEOS, and SiO 2 grown on a Si substrate. In the simulations, waveguide attenuation values derived from the measured attenuation of a prefabricated test wafer, have been taken into account. Vectorial modal fields of individual waveguides, as computed by a mode solver, were used as the basis for the CMT computation. In the simulation, an operational wavelength around 632.8 nm was assumed. Our simulations reveal that maximum power splitting ratio can be achieved when the directional coupler is operated as a 3-dB coupler with the phase-shifter set to produce a 90° phase-shift. The required coupler length for such desired operating condition is highly-dependent on the gap size. On the other hand, the inclusion of the waveguide loss and the non-parallel section of the directional coupler into the model only slightly affect the results.

An Optical Power Splitter With Variable Power Splitting Ratio

2011 ◽  
Vol 23 (14) ◽  
pp. 1004-1006 ◽  
Author(s):  
Shaohua Tao ◽  
Bingchu Yang ◽  
Hui Xia ◽  
Hua Wang ◽  
Guo-Qiang Lo
Keyword(s):  
Optical Power ◽  
Power Splitting ◽  
Power Splitter ◽  
Splitting Ratio ◽  
Variable Power

scholarly journals Tailorable and Broadband On-Chip Optical Power Splitter

2019 ◽  
Vol 9 (20) ◽  
pp. 4239 ◽  
Author(s):  
Hyeongpin Kim ◽  
Heedeuk Shin
Keyword(s):  
Integrated Circuits ◽  
Insertion Loss ◽  
Optical Power ◽  
Power Splitting ◽  
Power Ratio ◽  
Power Splitter ◽  
Splitting Ratio ◽  
Low Insertion Loss ◽  
On Chip ◽  
Tapered Waveguides

An on-chip optical power splitter is a key component of photonic signal processing and quantum integrated circuits and requires compactness, wideband, low insertion loss, and variable splitting ratio. However, designing an on-chip splitter with both customizable splitting ratio and wavelength independence is a big challenge. Here, we propose a tailorable and broadband optical power splitter over 100 nm with low insertion loss less than 0.3%, as well as a compact footprint, based on 1×2 interleaved tapered waveguides. The proposed scheme can design the output power ratio of transverse electric modes, lithographically, and a selection equation of a power splitting ratio is extracted to obtain the desired power ratio. Our splitter scheme is close to an impeccable on-chip optical power splitter for classical and quantum integrated photonic circuits.

scholarly journals Integrated Optical Power Splitter With Continuously Adjustable Power Splitting Ratio

2020 ◽  
Vol 12 (6) ◽  
pp. 1-13
Author(s):  
Shasha Liao ◽  
Hang Bao ◽  
Tiantian Zhang ◽  
Jiwei Liu ◽  
Xi Liao ◽  
...  
Keyword(s):  
Optical Power ◽  
Power Splitting ◽  
Power Splitter ◽  
Splitting Ratio ◽  
Integrated Optical

scholarly journals Harvested Energy Maximization of SWIPT System with Popularity Cache Scheme in Dense Small Cell Networks

2019 ◽  
Vol 2019 ◽  
pp. 1-14
Author(s):  
Xuefei Peng ◽  
Jiandong Li
Keyword(s):  
Small Cell ◽  
Base Stations ◽  
Maximization Problem ◽  
Power Splitting ◽  
Small Cell Networks ◽  
Splitting Ratio ◽  
Energy Maximization ◽  
Cache Scheme ◽  
Cell Networks

In this paper, we propose a harvested energy maximization problem of simultaneous wireless information and power transfer (SWIPT) system with popularity cache scheme in dense small cell networks. Firstly, network model, content request, and popularity cache schemes are provided in the system model. Then, we establish a harvested energy maximization problem of SWIPT system with popularity cache scheme in dense small cell networks, where maximum transmit power of small cell base stations (SBSs), minimum rate requirement, i.e., quality of service (QoS) of user terminals (UTs), and power splitting ratio are considered. Further, an iterative power splitting ratio and power allocation optimization (IPSPA) algorithm is proposed to solve the formulated problem. Finally, the better performance of our proposed method is demonstrated through a number of simulations. These results are of significance for maximizing harvesting energy of UTs and reducing consumption of backhaul resources and energy.

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