A New Automatic Demultiplexing Method for NRZ-OOK Polarization-Division Multiplexed System

2011 ◽  
Vol 204-210 ◽  
pp. 1636-1639
Author(s):  
Qi Jing ◽  
Yong Qing Huang ◽  
Yang An Zhang ◽  
Ming Lun Zhang ◽  
Li Dong Mei
Keyword(s):  
Radio Frequency ◽  
Direct Current ◽  
Beam Splitter ◽  
System Simulation ◽  
Polarization Controller ◽  
Polarization Beam Splitter ◽  
Optical Polarization ◽  
Control Signals ◽  
Detection Window

A new automatic optical polarization demultiplexing method for NRZ-OOK polarization division multiplexed (PDM) system is proposed. The detected power differences of both the direct current (DC) and the radio frequency (RF) are used as control signals which are sensitive to the angles between the polarization controller (PC) and the polarization beam splitter (PBS). The characteristics of those control signals are thoroughly analyzed, and the best RF detection window is calculated out through system simulation.

Automatic Demultiplexing Method for NRZ-OOK and RZ-OOK Polarization-Division Multiplexed System

2011 ◽  
Vol 219-220 ◽  
pp. 596-599
Author(s):  
Qi Jing ◽  
Yong Qing Huang ◽  
Yan Gan Zhang ◽  
Xue Guang Yuan ◽  
Ping Li
Keyword(s):  
Radio Frequency ◽  
Beam Splitter ◽  
System Simulation ◽  
Low Frequency ◽  
Polarization Controller ◽  
Polarization Beam Splitter ◽  
Optical Polarization ◽  
Control Signals ◽  
Rf Signals

We propose a new automatic optical polarization demultiplexing method for NRZ-OOK and RZ-OOK polarization division multiplexed (PDM) system. The detected power differences of the radio frequency (RF) at low frequency are used as control signals which are sensitive to the angles between the states of polarization (SOP) of the polarization controller (PC) and the polarization beam splitter (PBS) at the demultiplexing side. The characteristics of the detected RF signals of NRZ-OOK and RZ-OOK are compared, and the best RF detection windows are calculated out through system simulation.

Embedded metal-wire nanograting and its application in an optical polarization beam splitter/combiner

2008 ◽  
Vol 47 (3) ◽  
pp. 312 ◽  
Author(s):  
Dingli Wang ◽  
Wen Liu ◽  
Qingming Xiao ◽  
Jing Shi
Keyword(s):  
Beam Splitter ◽  
Metal Wire ◽  
Polarization Beam Splitter ◽  
Optical Polarization

scholarly journals Compact Photonic Crystal Polarization Beam Splitter Based on the Self-Collimation Effect

Photonics ◽  
2021 ◽  
Vol 8 (6) ◽  
pp. 198
Author(s):  
Geyu Tang ◽  
Huamao Huang ◽  
Yuqi Liu ◽  
Hong Wang
Keyword(s):  
Optical Communications ◽  
Beam Splitter ◽  
Extinction Ratio ◽  
Polarized Light ◽  
The Self ◽  
Polarization Beam Splitter ◽  
Optical Interconnection ◽  
Beam Splitting ◽  
Beam Splitters ◽  
Polarization Extinction Ratio

We propose a new compact polarization beam splitter based on the self-collimation effect of two-dimensional photonic crystals and photonic bandgap characteristics. The device is composed of a rectangular air holes-based polarization beam splitting structure and circular air holes-based self-collimating structure. By inserting the polarization beam splitting structure into the self-collimating structure, the TE and TM polarized lights are orthogonally separated at their junction. When the number of rows in the hypotenuse of the inserted rectangular holes is 5, the transmittance of TE polarized light at 1550 nm is 95.4% and the corresponding polarization extinction ratio is 23 dB; on the other hand, the transmittance of TM polarized light is 88.5% and the corresponding polarization extinction ratio is 37 dB. For TE and TM polarized lights covering a 100 nm bandwidth, the TE and TM polarization extinction ratios are higher than 18 dB and 30 dB, respectively. Compared with the previous polarization beam splitters, our structure is simple, the size is small, and the extinction ratio is high, which meets the needs of modern optical communications, optical interconnection, and optical integrated systems.

scholarly journals Integration of a photonic crystal polarization beam splitter and waveguide bend

2009 ◽  
Vol 17 (10) ◽  
pp. 8657 ◽  
Author(s):  
Wanhua Zheng ◽  
Mingxin Xing ◽  
Gang Ren ◽  
Steven G. Johnson ◽  
Wenjun Zhou ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Beam Splitter ◽  
Polarization Beam Splitter ◽  
Waveguide Bend
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