Optimization of fiber-optic coupling and alignment tolerance for coupling between a laser diode and a wedged single-mode fiber

Tang, Zheng; Zhang, R; Mondal, Samir K.; Shi, Frank G.

doi:10.1016/s0030-4018(01)01557-7

Cited by 31 publications

(6 citation statements)

References 7 publications

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“…Для решения этой проблемы авторами статьи была разработана и исследована конструкция, со-стоящая из двух шариковых линз. В основе этого соединения лежит бесконтактная технология соединения излучения оптических волокон, получившая название Expanded Beam («расширенный пучок») [2][3][4]. Среди ее преимуществ можно выделить меньшую проницаемость для загрязнений и повреждений [5][6][7][8][9].…”

Section: рис 2 сравнение профиля сечения расширенного пучка и диаметров сердцевин оптических волокон с инородными частицамиunclassified

Разработка макета волоконно-оптического бесконтактного разъема с помощью технологии Expanded Beam

Tokareva¹,

Garanin²,

Petukhova³

et al. 2020

Bulletin of Perm University. Physics

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Разработка макета волоконно-оптического бесконтактного разъема с помощью технологии Expanded Beam

Tokareva¹,

Garanin²,

Petukhova³

et al. 2020

Bulletin of Perm University. Physics

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“…The optical fiber collimator alignment involves six degree of freedom motions, namely, lateral (X-axis), vertical (Y-axis), longitude (Z-axis), pitch (rotation around X-axis), yaw (rotation around Y-axis), and roll (rotation around Z-axis) [6]. [7].…”

Section: Alignment Model Analysismentioning

confidence: 99%

Automatic alignment between two optical fiber collimators

Xu¹,

Shen²

2007

3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technolo

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Optical fiber collimators are widely used in many parts of optical apparatus such as optical isolators, optical switch, etc, and the automatic alignment between two optical fiber collimators becomes an important part of the manufacture. Since the automatic alignment process is the multi-degree-of-freedom motion control, the traditional hill-climbing algorithm takes much time and always fails. Based on the optical field formed by the collimator's end, a fast multiple freedom search algorithm is proposed for automatic alignment between two optical fiber collimators. The blind search method is used in coarse alignment process. In this method, the collimator will move in a symmetrical square spiral trace to catch the first light. In fine alignment, the collimator will move in a circle trace to find such two points in which the optical powers are equal, and then the algorithm will forecast the direction of the power increasing. This search method in fine alignment process can adjust misalignments on multiple axial directions simultaneously. Due to this advantage, this fine alignment process is shortened time with little effects of noises and inter-coupling among axes on alignment automation. Experimental results show that the alignment speed of the proposed search method is better than that of traditional hillclimbing algorithm. The cycle time for six-degree freedom, x, y, z and θ x, θ y, θ z, alignment automation is about 120-140s.

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“…Tang et al [15,16] investigated the effects of angular misalignments of roll, pitch, and yaw on fiber-optic alignment automation and optimized the fiber-optic coupling and alignment tolerance for coupling between a laser diode and a wedged fiber. As expected, the roll misalignment has less effect on coupling loss than the other two misalignment types.…”

Section: Introductionmentioning

confidence: 99%

Analysis of a Micro-Optomechatronic Force Sensor

Fakhrabadi¹,

Gholami²,

Rostami³

et al. 2010

Fiber and Integrated Optics

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The purpose of this article is to study the dynamic behavior and modal analysis of a micro-optomechatronic device with primary applications to force sensing and optical attenuation/coupling. The system consists of two initially aligned microcantilevers with a narrow gap between them. The light beam enters to the first waveguide and, after propagation along it, couples to second waveguide through the mentioned narrow gap. The externally static or dynamic applied force on the first micro-cantilever deflects it and results in reduced optical coupling between the two waveguides. Changes in this factor are measured to give the properties of the applied force.

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Optimization of fiber-optic coupling and alignment tolerance for coupling between a laser diode and a wedged single-mode fiber

Cited by 31 publications

References 7 publications

Разработка макета волоконно-оптического бесконтактного разъема с помощью технологии Expanded Beam

Разработка макета волоконно-оптического бесконтактного разъема с помощью технологии Expanded Beam

Automatic alignment between two optical fiber collimators

Analysis of a Micro-Optomechatronic Force Sensor

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