基于光纤旋转连接器的光纤耦合效率研究
Research on Coupling Efficiency Based on Fiber Optic Rotary Joints
查看参考文献17篇
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文摘
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基于渐变折射率透镜准直器一定程度上可以提高空间光-光纤耦合效率,但会引入光纤与渐变折射率透镜装配误差和渐变折射率透镜间位置误差。鉴于以上两种误差情况,本文提出了修正光纤与渐变折射率透镜装配误差的位移法和基于楔形棱镜和平板玻璃的光束指向调整法。首先运用光线传输矩阵的数学分析方法建立了光线传输模型,分析当光纤与渐变折射率透镜存在距离误差和位置误差下耦合效率的变化,最后利用位移法降低了距离误差对插入损耗的影响,使系统插入损耗降低至0.2 dB。在存在位置误差下利用光束指向调整法降低插入损耗至0.7 dB。这两种方法可以有效提升光纤旋转连接器耦合效率。 |
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其他语种文摘
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As an important part of modern communication system,satellite communication undertakes important tasks such as communication,earth observation,navigation and positioning in military and civil fields. The traditional spaceborne optoelectronic load realizes the data signal and power transmission between the relative rotating bodies through the slip rings. With the continuous development of optical fiber technology and related components,laser communication with optical fiber as the transmission medium has gradually replaced the traditional signal transmission with wires. The fiber optic rotary joints have the characteristics of a wide communication frequency band, strong anti-electromagnetic interference ability,strong confidentiality ability,fast transmission rate,low loss,etc. Its performance largely determines the service life of the satellite. Low loss and high reliability are important indicators of single-channel fiber optic rotary joints. This paper takes the single-channel fiber optic rotary joints as the research object. In order to achieve its low loss and high reliability goals,it is necessary to explore the factors affecting the insertion loss. The gap between the single-mode fiber and the gradient-index lens and the position error between the two gradient-index lens collimators are all important factors that affect the insertion loss of the fiber optic rotary connector. The Gaussian beam coupling has attracted the attention of universities and research institutions from all over the world. But the previous analysis ignored the influence of the position error between the fiber and the gradient-index lens on the coupling efficiency. There is no corresponding compensation method for the above-mentioned errors,which is crucial for improving performance parameters and reducing the difficulty of processing and assembly. This paper takes the single-channel fiber optic rotary joints as the research object. In order to achieve the goals of low loss and high reliability,it is necessary to explore the factors affecting the insertion loss. The fiber optic rotary connector studied in this paper uses two gradient-index lens collimators as the main optics. Theoretically,the propagation model of Gaussian beam in the construction of gradient-index lens is established,and the optical characterization parameters of the gradient-index lens are obtained by mathematical analysis method of light transmission matrix. In order to describe the propagation of the Gaussian beam in the gradient-index lens,the (x,y,z) and (x′,y′,z′) coordinate systems are established,and the electric field vector equations are established for the lenses at the receiving end and the transmitting end. Based on this equation,the influence of lateral offsets on the coupling efficiency of the system is discussed. Using the geometrical optics analysis method,the energy distribution equation under the separation misalignment is established,and the influence of the separation misalignment on the coupling efficiency of the system is analyzed. This paper design the single-channel fiber optic rotary joints with low loss as the key parameter by ZEMAX,and the optical model of the single-channel fiber optic rotary joints is established,and the optical parameters of the gradient-index lens are preliminarily determined. For the convenience of processing and assembly,the two gradient-index lenses are designed with the same parameters. First,without changing the working distance,set the distances to 0,0.05 mm,0.10 mm,0.15 mm,0.20 mm,and 0.25 mm between the optical fiber at the transmitting end and the gradient-index lens. In order to obtain the insertion loss at different positions,the value of the fiber at the receiving end and the gradient-index lens is changed. It can be seen from the analysis that the same insertion loss as the initial value can be obtained by adjusting the position of the optical fiber. |
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来源
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光子学报
,2022,51(11):1106005 【核心库】
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DOI
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10.3788/gzxb20225111.1106005
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关键词
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光纤传输系统
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插入损耗
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激光通信
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渐变折射率透镜
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光线传输模型
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光纤旋转连接器
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耦合效率
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地址
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中国科学院西安光学精密机械研究所, 西安, 710119
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中国科学院西安光学精密机械研究所, 中国科学院空间精密测量重点实验室, 西安, 710119
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中国科学院大学, 北京, 100049
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1004-4213 |
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学科
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电子技术、通信技术 |
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基金
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中国科学院青年创新促进会项目
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文献收藏号
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CSCD:7357986
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参考文献 共
17
共1页
|
|
1.
Abid A. Etching-enabled extreme miniaturization of graded-index fiber-based optical coherence tomography probes.
Journal of Biomedical Optics,2019,25(3):032006
|
CSCD被引
1
次
|
|
|
|
|
2.
Wang C. Further analysis of focusing performance of an ultra-small gradient-index fiber probe.
Optical Engineering,2014,53(1):013106
|
CSCD被引
4
次
|
|
|
|
|
3.
Wang C. Analytical method for designing gradient-index fiber probes.
Optical Engineering,2011,50(9):094202
|
CSCD被引
7
次
|
|
|
|
|
4.
Cui J. Fan-out device for multicore fiber coupling application based on capillary bridge self-assembly fabrication method.
Optical Fiber Technology,2015,26:234-242
|
CSCD被引
2
次
|
|
|
|
|
5.
Kihara M. Investigation into optical performance of fiber connections with imperfect physical contact.
Journal of Lightwave Technology,2013,31(6):967-974
|
CSCD被引
2
次
|
|
|
|
|
6.
Palais J C. Fiber coupling using graded-index rod lenses.
Applied Optics,1980,19(12):2011-2018
|
CSCD被引
10
次
|
|
|
|
|
7.
Gilsdorf R W. Single-mode fiber coupling efficiency with graded-index rod lenses.
Applied Optics,1994,33(16):3440-3445
|
CSCD被引
17
次
|
|
|
|
|
8.
Yuan S. General formula for coupling-loss characterization of single-mode fiber collimators by use of gradient-index rod lenses.
Applied Optics,1999,38(15):3214-3222
|
CSCD被引
18
次
|
|
|
|
|
9.
王驰. 梯度折射率光纤探针的光学特征参数.
中国激光,2012,39(9):76-82
|
CSCD被引
1
次
|
|
|
|
|
10.
Wang C. Coupling efficiency of ultra-small gradient-index fiber probe.
Optics Communications,2017,389:265-269
|
CSCD被引
4
次
|
|
|
|
|
11.
Cusworth S D. Angular tilt misalignment loss at a GRIN rod lens coupler.
Applied Optics,1986,25(11):1775-1779
|
CSCD被引
1
次
|
|
|
|
|
12.
梁骁. 160 Gbps光通信系统中光纤准直器的基准插入损耗与功率代价研究.
北京交通大学学报,2014,38(5):1-6
|
CSCD被引
1
次
|
|
|
|
|
13.
千应庆. 光纤旋转连接器耦合误差分析.
兵工自动化,2012,31(10):73-76
|
CSCD被引
2
次
|
|
|
|
|
14.
米磊.
单通道光纤旋转连接器的研究,2013
|
CSCD被引
1
次
|
|
|
|
|
15.
Jung W. Numerical analysis of gradient index lens-based optical coherence tomography imaging probes.
Journal of Biomedical Optics,2010,15(6):066027
|
CSCD被引
5
次
|
|
|
|
|
16.
Kogelnik H. Coupling and conversion coefficients for optical modes.
Microwave Research Institute Symposia Series. 14,1964:333-347
|
CSCD被引
1
次
|
|
|
|
|
17.
Nemoto S. Analysis of splice loss in single-mode fibres using a Gaussian field approximation.
Optical and Quantum Electronics,1979,11(5):447-457
|
CSCD被引
6
次
|
|
|
|
|
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