An ultra-broadband polarizing beam splitter/coupler using asymmetric-waveguides

2020 ◽  
Vol 454 ◽  
pp. 124424 ◽  
Author(s):  
Qinghuan Xu ◽  
Jifang Tao ◽  
Chonglei Sun ◽  
Jia Zhao ◽  
Zuojia Wang ◽  
...  
Keyword(s):  
Beam Splitter ◽  
Polarizing Beam Splitter

scholarly journals Biphoton Interference in a Double-Slit Experiment

Quanta ◽  
2018 ◽  
Vol 7 (1) ◽  
pp. 1 ◽  
Author(s):  
Ananya Paul ◽  
Tabish Qureshi
Keyword(s):  
Beam Splitter ◽  
Entangled Photons ◽  
Polarizing Beam Splitter ◽  
Double Slit Experiment ◽  
Slit Experiment ◽  
Double Slit

A double-slit experiment with entangled photons is theoretically analyzed. It is shown that, under suitable conditions, two entangled photons of wavelength λ can behave like a biphoton of wavelength λ/2. The interference of these biphotons, passing through a double-slit can be obtained by detecting both photons of the pair at the same position. This is in agreement with the results of an earlier experiment. More interestingly, we show that even if the two entangled photons are separated by a polarizing beam splitter, they can still behave like a biphoton of wavelength λ/2. In this modified setup, the two separated photons passing through two different double-slits, surprisingly show an interference corresponding to a wavelength λ/2, instead of λ which is the wavelength of each photon. We point out two experiments that have been carried out in different contexts, which saw the effect predicted here without realizing this connection.Quanta 2018; 7: 1–6.

Robust Design of a High-Performance Laser Thin-Film Polarizing Beam Splitter with Low Layer Errors Sensitivity

2013 ◽  
Vol 33 (2) ◽  
pp. 0231004
Author(s):  
吴素勇 Wu Suyong ◽  
杨开勇 Yang Kaiyong ◽  
谭中奇 Tan Zhongqi
Keyword(s):  
Thin Film ◽  
Robust Design ◽  
High Performance ◽  
Beam Splitter ◽  
Polarizing Beam Splitter

High-Precision Polarizing Beam Splitting System Based on Polarizing Beam Splitter

2016 ◽  
Vol 43 (12) ◽  
pp. 1210001
Author(s):  
罗敬 Luo Jing ◽  
刘东 Liu Dong ◽  
徐沛拓 Xu Peituo ◽  
白剑 Bai Jian ◽  
刘崇 Liu Chong ◽  
...  
Keyword(s):  
High Precision ◽  
Beam Splitter ◽  
Beam Splitting ◽  
Polarizing Beam Splitter ◽  
Splitting System

Polarizing beam splitter of two-layer dielectric rectangular transmission gratings in Littrow mounting

2009 ◽  
Vol 282 (15) ◽  
pp. 3069-3075 ◽  
Author(s):  
Jiangjun Zheng ◽  
Changhe Zhou ◽  
Jijun Feng ◽  
Hongchao Cao ◽  
Peng Lu
Keyword(s):  
Beam Splitter ◽  
Polarizing Beam Splitter

scholarly journals Continuously Wavelength-Tunable First-Order Narrowband Fiber Comb Filter Using Composite Combination of Wave Retarders

2020 ◽  
Vol 10 (18) ◽  
pp. 6150
Author(s):  
Jaehoon Jung ◽  
Yong Wook Lee
Keyword(s):  
Principal Axis ◽  
Beam Splitter ◽  
Orientation Angle ◽  
Comb Filter ◽  
First Order ◽  
High Birefringence ◽  
Filter Structure ◽  
Half Wave ◽  
Quarter Wave ◽  
Polarizing Beam Splitter

Here, by harnessing a composite combination of wave retarders, we propose and experimentally demonstrate a first-order narrowband fiber comb filter capable of continuously tuning its wavelength, of which the filter structure is on the fundamental basis of a polarization–diversity loop structure. The demonstrated comb filter consists of a polarizing beam splitter (PBS), two high birefringence fiber (HBF) segments of the same length, an ordered wave retarder combination (WRC) of a quarter-wave retarder (QWR) and a half-wave retarder (HWR) before the first HBF segment, and an ordered WRC of an HWR and a QWR before the second HBF segment. The second HBF segment is butt-coupled to one port of the PBS so that its principal axis should be 22.5° away from the horizontal axis of the PBS. Taking the filter transmittance obtained by Jones calculus into consideration, we found the azimuth orientation angle (AOA) sets of the four wave retarders, which could allow extra phase shifts (ψ’s) ranging from 0° to 360° to be induced in the narrowband transmittance function. From filter transmission spectra calculated according to the AOA sets found above, it is confirmed that the first-order narrowband comb spectrum can be continuously tuned by properly controlling the AOA’s, clearly indicating the continuous wavelength tunability based on a composite combination of ordered wave retarders. This theoretical prediction was verified by actually constructing the proposed filter. Then, it is concluded that our filter employing the composite combination of wave retarders can be continuously frequency-tuned by properly controlling the AOA’s of the wave retarders.

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