סמינר זה יחשב כסמינר שמיעה לתלמידי תואר שני
You are invited to attend a lecture on Wednesday, August 16th, 2023, at 10:00 am
The seminar will be held at Software Engineering Building, Room 512
MANIPULATION OF VORTEX BEAMS BY 3D-PRINTED OPTICAL ELEMENTS
By:
Lavi Somers
M.Sc. student under the supervision of Dr. Shlomi Lightman and Prof. Ady Arie
Abstract
Light waves that carry orbital angular momentum (OAM) can be utilized to increase the channel capacity of classical optical communication systems by space division multiplexing, or as a multi-dimensional basis for quantum optical communication. These OAM modes can be carried in vortex fibers with minimum inter-modal coupling. In order to utilize the different OAM modes in the fibers, they need to be multiplexed and demultiplexed, but up until now this was primarily achieved by bulky and large devices. We were able to miniaturize and integrate these devices directly on a tip of a fiber using 3D direct laser printing.
This talk will introduce:
1) 3D direct laser printing using Photonic Professional GT, Nanoscribe GmbH, commercial system.
2) OAM (De)multiplexing methods, such as log-polar, fanout, spiral and angular lens sorting.
3) OAM (De)multiplexing using integrated OAM mode sorters for free space and vortex fibers [1, 2].
References:
[1] Shlomi Lightman, Gilad Hurvitz, Raz Gvishi, and Ady Arie, "Miniature wide-spectrum mode sorter for vortex beams produced by 3D laser printing," Optica 4, 605-610 (2017)
[2] Shlomi Lightman*, Ilan Bleyhman*, Lavi Somers*, Gilad Hurvitz, Raz Gvishi, Leslie A. Rusch, and Ady Arie, "Integrated orbital angular momentum mode sorters on vortex fibers," Opt. Lett. 47, 3491-3494 (2022)
