Reconfigurable structured light generation in a multicore fibre amplifier

被引：73

作者：

Lin, Di ^{[1
]}

Carpenter, Joel ^{[2
]}

Feng, Yutong ^{[1
]}

Jain, Saurabh ^{[1
]}

Jung, Yongmin ^{[1
]}

Feng, Yujun ^{[1
]}

Zervas, Michalis N. ^{[1
]}

Richardson, David J. ^{[1
]}

机构：

[1] Univ Southampton, Optoelectron Res Ctr, Southampton SO17 1BJ, Hants, England

[2] Univ Queensland, Sch Informat Technol & Elect Engn, Brisbane, Qld 4072, Australia

来源：

NATURE COMMUNICATIONS | 2020年 / 11卷 / 01期

基金：

澳大利亚研究理事会; 英国工程与自然科学研究理事会;

关键词：

LASER-BEAMS; PHOTONIC LANTERN; POLARIZATION; BIREFRINGENCE; MODES;

D O I：

10.1038/s41467-020-17809-x

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Structured light, with spatially varying phase or polarization distributions, has given rise to many novel applications in fields ranging from optical communication to laser-based material processing. However the efficient and flexible generation of such beams from a compact laser source at practical output powers still remains a great challenge. Here we describe an approach capable of addressing this need based on the coherent combination of multiple tailored Gaussian beams emitted from a multicore fibre (MCF) amplifier. We report a proof-of-concept structured light generation experiment, using a cladding-pumped 7-core MCF amplifier as an integrated parallel amplifier array and a spatial light modulator (SLM) to actively control the amplitude, polarization and phase of the signal light input to each fibre core. We report the successful generation of various structured light beams including high-order linearly polarized spatial fibre modes, cylindrical vector (CV) beams and helical phase front optical vortex (OV) beams. Structured light is a valuable addition to many optical applications. Here, the authors introduce a method for producing tailorable structured light beams at the output of a multicore fiber amplifier by controlling the input to each fiber core.

引用

页数：9

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