Ms. Ayano Sakamoto Profile

Ayano Sakamoto

at Japan Women's Univ

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 18 September 2018 Paper

Investigation of mode demultiplexer for Laguerre-Gaussian mode multiplexing in free space

Ayano Sakamoto, Kayo Ogawa

Proceedings Volume 10770, 1077011 (2018) https://doi.org/10.1117/12.2322070

KEYWORDS: Computer generated holography, Multiplexing, Diffraction, Holograms, Demultiplexers, Free space, Interferometry, Optical design, Algorithms

Read Abstract +

With the rapid increase in communication traffic, the capacities of existing multiplexing methods have reached the limits of expandability. Therefore, the mode multiplex communication method using orbital angular momentum (OAM) has recently attracted attention as a new method. The OAM is a part of Laguerre-Gaussian (LG) beam. LG beam which possesses modes determined by the radial order n and the azimuth order m. The OAM is modes when the radial order n is equal to zero. Transmission capacity and spectral efficiency are expected great increase significantly from the combination of existing multiplexing method and mode multiplexing. In the future, a further increase in transmission capacity is expected because devices connected to the Internet are rapidly increasing with the spread of the Internet of Things. Therefore, in order to further increase transmission capacity, it is necessary to expand the radial order n. In this study, we investigate the mode multiplexing communication method using LG mode extending the radial order n. To realize mode multiplexing with increased the amount of multiplexing, technological developments in demultiplexing are particularly significant. In previous studies, mode-demultiplexers have been considered interferometric method and holographic filter. However, these methods have problems such as the complex of optical system and the reduction in diffraction efficiency. Therefore, we design the computer generated hologram that can extract multiple modes with one filter as the mode-demultiplexer. Through the above examination, we aim to realize simplification and high efficiency of the mode-demultiplexer.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years