Generating Radially and Azimuthally Polarized Beams by Using a Pair of Lateral Displacement Beamsplitters
This paper proposes a modified polarization converter for generating radially and azimuthally polarized beams. Based on a Mach–Zehnder-like interferometric structure, the device consists of a pair of lateral displacement beamsplitters (LDBs) and two half-wave plates that manipulate the states of pol...
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MDPI AG
2016-08-01
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| Series: | Applied Sciences |
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| Online Access: | http://www.mdpi.com/2076-3417/6/9/241 |
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doaj-6588f4b7e2784f9e935934a88784c0072020-11-25T01:42:32ZengMDPI AGApplied Sciences2076-34172016-08-016924110.3390/app6090241app6090241Generating Radially and Azimuthally Polarized Beams by Using a Pair of Lateral Displacement BeamsplittersChien-Yuan Han0Zhi-Hao Wei1Yung Hsu2Kun-Huang Chen3Chien-Hung Yeh4Wei-Xuan Wu5Jing-Heng Chen6Department of Electro-Optical Engineering, National United University, No. 2, Lienda, Nanshi Li, Miaoli 36063, TaiwanDepartment of Photonics, Feng Chia University, No. 100, Wenhwa Rd., Seatwen, Taichung 40724, TaiwanInstitute of Electro-Optical Engineering, National Chiao Tung University, No. 1001, University Rd., Hsinchu 30010, TaiwanDepartment of Electrical Engineering, Feng Chia University, No. 100, Wenhwa Rd., Seatwen, Taichung 40724, TaiwanDepartment of Photonics, Feng Chia University, No. 100, Wenhwa Rd., Seatwen, Taichung 40724, TaiwanDepartment of Photonics, Feng Chia University, No. 100, Wenhwa Rd., Seatwen, Taichung 40724, TaiwanDepartment of Photonics, Feng Chia University, No. 100, Wenhwa Rd., Seatwen, Taichung 40724, TaiwanThis paper proposes a modified polarization converter for generating radially and azimuthally polarized beams. Based on a Mach–Zehnder-like interferometric structure, the device consists of a pair of lateral displacement beamsplitters (LDBs) and two half-wave plates that manipulate the states of polarization of incident linearly polarized light. Through the coherent superposition of two orthogonal Hermite–Gaussian modes in the far field, radially and azimuthally polarized beams can be obtained simultaneously. A prototype was assembled to demonstrate the feasibility of the design. The proposed design has the advantage of having a simple, symmetric, compact, and robust structure. In addition, the introduction of LDBs substantially reduces the cost of this device. Moreover, the design can be applied to a broadband pulsed laser with considerable potential in high-power applications.http://www.mdpi.com/2076-3417/6/9/241beam splitterswaveplatescoherenceinterferencepolarizations |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Chien-Yuan Han Zhi-Hao Wei Yung Hsu Kun-Huang Chen Chien-Hung Yeh Wei-Xuan Wu Jing-Heng Chen |
| spellingShingle |
Chien-Yuan Han Zhi-Hao Wei Yung Hsu Kun-Huang Chen Chien-Hung Yeh Wei-Xuan Wu Jing-Heng Chen Generating Radially and Azimuthally Polarized Beams by Using a Pair of Lateral Displacement Beamsplitters Applied Sciences beam splitters waveplates coherence interference polarizations |
| author_facet |
Chien-Yuan Han Zhi-Hao Wei Yung Hsu Kun-Huang Chen Chien-Hung Yeh Wei-Xuan Wu Jing-Heng Chen |
| author_sort |
Chien-Yuan Han |
| title |
Generating Radially and Azimuthally Polarized Beams by Using a Pair of Lateral Displacement Beamsplitters |
| title_short |
Generating Radially and Azimuthally Polarized Beams by Using a Pair of Lateral Displacement Beamsplitters |
| title_full |
Generating Radially and Azimuthally Polarized Beams by Using a Pair of Lateral Displacement Beamsplitters |
| title_fullStr |
Generating Radially and Azimuthally Polarized Beams by Using a Pair of Lateral Displacement Beamsplitters |
| title_full_unstemmed |
Generating Radially and Azimuthally Polarized Beams by Using a Pair of Lateral Displacement Beamsplitters |
| title_sort |
generating radially and azimuthally polarized beams by using a pair of lateral displacement beamsplitters |
| publisher |
MDPI AG |
| series |
Applied Sciences |
| issn |
2076-3417 |
| publishDate |
2016-08-01 |
| description |
This paper proposes a modified polarization converter for generating radially and azimuthally polarized beams. Based on a Mach–Zehnder-like interferometric structure, the device consists of a pair of lateral displacement beamsplitters (LDBs) and two half-wave plates that manipulate the states of polarization of incident linearly polarized light. Through the coherent superposition of two orthogonal Hermite–Gaussian modes in the far field, radially and azimuthally polarized beams can be obtained simultaneously. A prototype was assembled to demonstrate the feasibility of the design. The proposed design has the advantage of having a simple, symmetric, compact, and robust structure. In addition, the introduction of LDBs substantially reduces the cost of this device. Moreover, the design can be applied to a broadband pulsed laser with considerable potential in high-power applications. |
| topic |
beam splitters waveplates coherence interference polarizations |
| url |
http://www.mdpi.com/2076-3417/6/9/241 |
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