Complex Wavefront Shaping through a Multi-Core Fiber

Applied Sciences

Jiawei Sun¹  JürgenW. Czarske¹  Nektarios Koukourakis¹ 

[1] Laboratory of Measurement and Sensor System Technique, TU Dresden, Helmholtzstrasse 18, 01069 Dresden, Germany;

关键词: wavefront shaping;    multi-core fiber;    spatial light modulator;    phase conjugation;    optical trapping;   

DOI  :  10.3390/app11093949

来源: DOAJ

【 摘 要 】

Wavefront shaping through a multi-core fiber (MCF) is turning into an attractive method for endoscopic imaging and optical cell-manipulation on a chip. However, the discrete distribution and the low number of cores induce pixelated phase modulation, becoming an obstacle for delivering complex light field distributions through MCFs. We demonstrate a novel phase retrieval algorithm named Core–Gerchberg–Saxton (Core-GS) employing the captured core distribution map to retrieve tailored modulation hologram for the targeted intensity distribution at the distal far-field. Complex light fields are reconstructed through MCFs with high fidelity up to 96.2%. Closed-loop control with experimental feedback denotes the capability of the Core-GS algorithm for precise intensity manipulation of the reconstructed light field. Core-GS provides a robust way for wavefront shaping through MCFs; it facilitates the MCF becoming a vital waveguide in endoscopic and lab-on-a-chip applications.

【 授权许可】

Unknown