Estimation of dislocated phases and tunable orbital angular momentum using two cylindrical lenses

被引：0
|
作者：
Swaliha, B. H. [1 ]
Asokan, S. [1 ]
Ivan, J. Solomon [1 ]
机构：
[1] Indian Inst Space Sci & Technol, Dept Phys, Appl & Adapt Opt Lab, Valiamala PO, Thiruvananthapuram 695547, India
来源：
APPLIED OPTICS | 2023年 / 62卷 / 12期
关键词：
OPTICAL VORTEX; WAVE-FRONTS; LASER-BEAMS; RETRIEVAL; LIGHT; VORTICES; SUPERPOSITIONS; RECONSTRUCTION; GENERATION; ALGORITHM;
D O I：
10.1364/AO.486870
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A first-order optical system consisting of two cylindrical lenses separated by a distance is considered. It is found to be non-conserving of orbital angular momentum of the incoming paraxial light field. The first-order optical system is effectively demonstrated to estimate phases with dislocations using a Gerchberg-Saxton-type phase retrieval algorithm by making use of measured intensities. Tunable orbital angular momentum in the outgoing light field is experimentally demonstrated using the considered first-order optical system by varying the distance of separation between the two cylindrical lenses. (c) 2023 Optica Publishing Group
引用
收藏
页码：3083 / 3092
页数：10
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