Journal
APPLIED SCIENCES-BASEL
Volume 12, Issue 20, Pages -Publisher
MDPI
DOI: 10.3390/app122010399
Keywords
dual-fiber optical trap; spherical-tapered ended fiber; stiffness
Categories
Funding
- National Natural Science Foundation of China [11904405, 61975237]
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In this paper, we described a dual-fiber optical trap created using spherical-tapered ended fiber pigtailed to 1436 nm laser diodes. Compared with the dual flat ended fiber optical trap, this dual spherical-tapered ended fiber optical trap showed improvements in axial and lateral stiffness, increasing trapping efficiency and expanding application range and reliability. Additionally, integrating the dual-fiber optical trap into an optical chip improved system stability.
In dual-fiber optical traps, two counter-propagating laser beams emitted from opposing laser fibers trap and manipulate particles. We describe the operation and performance of a dual-fiber optical trap created using spherical-tapered ended fiber pigtailed to 1436 nm laser diodes. Compared with the dual flat ended fiber optical trap, the dual spherical-tapered ended fiber optical trap increased the axial stiffness from 0.44 pN/mu m to 0.99 pN/mu m, and increased the lateral stiffness from 1.68 pN/mu m to 1.76 pN/mu m. The dual-fiber optical trap fabricated by spherical-tapered ended fiber enhanced the trapping efficiency of the optical trap. It expanded the application range and reliability of the dual-fiber optical trap. Additionally, we integrated the dual-fiber optical trap into an optical chip, thereby improving the stability of the system.
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