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Monolithically integrated two-axis microgripper for polarization maintaining in optical fiber assembly
Jianbin Zhang1, Kangkang Lu1, Weihai Chen2
1School of Mechanical Engineering and Automation, Beihang University, Beijing 100191, China.
The Review of Scientific Instruments
|March 2, 2015
Summary
A new microgripper precisely aligns polarization maintaining optical fibers (PMOFs) for efficient light transmission. This innovative device offers an economical solution for critical PMOF assembly tasks.
Area of Science:
- Optoelectronics and Photonics
- Microelectromechanical Systems (MEMS)
Background:
- Polarization maintaining optical fibers (PMOFs) require precise rotational alignment for efficient light transmission.
- Current alignment methods for PMOFs are often inefficient and costly.
Purpose of the Study:
- To propose and validate a novel monolithically integrated microgripper for PMOF rotational alignment.
- To develop an efficient and economical solution for PMOF assembly.
Main Methods:
- Design of an asymmetric, two-axis flexure-based microgripper.
- Theoretical design guidance using pseudo-rigid body modeling and finite element analysis.
- Fabrication via wire electrical discharge machining.
Main Results:
- The microgripper successfully grasps 250 μm diameter optical fibers.
- Accurate and effective rotational rubbing capability exceeding 90° was demonstrated.
- The device meets operational requirements for PMOF assembly.
Conclusions:
- The developed microgripper provides a viable solution for precise PMOF alignment.
- The asymmetric, flexure-based design enables compact and functional micro-manipulation.
- This technology can significantly improve the efficiency and cost-effectiveness of PMOF assembly.
