The objective of this study is to investigate optical fiber shifts and shear stains in V-groove arrays for optical microelectromechanical system packaging, when the arrays are subjected to temperature cycling. Thermally induced optical fiber shifts in the joints consisting of an optical fiber, epoxy adhesive, and silicon substrate were simulated using a finite element analysis (FEA) package ANSYS. Experiments using real-time Moire´ interferometry were also performed at temperatures of 25, 40, 60, 85 and 100°C for confirmation of the analysis results. The study revealed that thermally induced fiber shifts increased with the number of V-groove channels. The shear strains at the fiber and silicon interface in the fiber joints increased as the V-groove channel was further away from the neutral point of the fiber array packages. The optical coupling loss is the greatest during thermal loading for the outer fiber in the four channel V-groove array. Optical loss of 0.334 and 0.346 dB was calculated using the fiber shift values obtained from the FEA and experimental results, respectively. The effect of fiber shifts, especially the shift of the fiber that is positioned at the outermost V-groove in the array, cannot be ignored.
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e-mail: mzwzhong@ntu.edu.sg
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March 2005
Article
Optical Fiber Shifts and Shear Stains in V-Groove Arrays for Optical MEMS Packaging
Z. W. Zhong,
e-mail: mzwzhong@ntu.edu.sg
Z. W. Zhong
School of Mechanical and Production Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Republic of Singapore
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S. C. Lim,
S. C. Lim
School of Mechanical and Production Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Republic of Singapore
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A. Asundi
A. Asundi
School of Mechanical and Production Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Republic of Singapore
Search for other works by this author on:
Z. W. Zhong
School of Mechanical and Production Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Republic of Singapore
e-mail: mzwzhong@ntu.edu.sg
S. C. Lim
School of Mechanical and Production Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Republic of Singapore
A. Asundi
School of Mechanical and Production Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Republic of Singapore
Manuscript received January 7, 2004; revision received August 13, 2004. Review conducted by: Y. C. Chan.
J. Electron. Packag. Mar 2005, 127(1): 25-28 (4 pages)
Published Online: March 21, 2005
Article history
Received:
January 7, 2004
Revised:
August 13, 2004
Online:
March 21, 2005
Citation
Zhong, Z. W., Lim , S. C., and Asundi , A. (March 21, 2005). "Optical Fiber Shifts and Shear Stains in V-Groove Arrays for Optical MEMS Packaging." ASME. J. Electron. Packag. March 2005; 127(1): 25–28. https://doi.org/10.1115/1.1846063
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