Blue-light digital communication in underwater environments utilizing orbital angular momentum

Joshua Baghdady; Keith Miller; Sean Osler; Kaitlyn Morgan; Wenzhe Li; Eric Johnson; Brandon Cochenour

doi:10.1117/12.2229796

17 May 2016 Blue-light digital communication in underwater environments utilizing orbital angular momentum

Joshua Baghdady, Keith Miller, Sean Osler, Kaitlyn Morgan, Wenzhe Li, Eric Johnson, Brandon Cochenour

Proceedings Volume 9827, Ocean Sensing and Monitoring VIII; 98270G (2016) https://doi.org/10.1117/12.2229796
Event: SPIE Defense + Security, 2016, Baltimore, MD, United States

Abstract

Underwater optical communication has recently become the topic of much investigation as the demands for underwater data transmission have rapidly grown in recent years. The need for reliable, high-speed, secure underwater communication has turned increasingly to blue-light optical solutions. The blue-green visible wavelength window provides an attractive solution to the problem of underwater data transmission thanks to its low attenuation, where traditional RF solutions used in free-space communications collapse. Beginning with GaN laser diodes as the optical source, this work explores the encoding and transmission of digital data across underwater environments of varying turbidities. Given the challenges present in an underwater environment, such as the mechanical and optical turbulences that make proper alignment difficult to maintain, it is desirable to achieve extremely high data rates in order to allow the time window of alignment between the transmitter and receiver to be as small as possible. In this paper, work is done to increase underwater data rates through the use of orbital angular momentum. Results are shown for a range of data rates across a variety of channel types ranging in turbidity from that of a clear ocean to a dirty harbor.

Citation Download Citation

Joshua Baghdady, Keith Miller, Sean Osler, Kaitlyn Morgan, Wenzhe Li, Eric Johnson, and Brandon Cochenour "Blue-light digital communication in underwater environments utilizing orbital angular momentum", Proc. SPIE 9827, Ocean Sensing and Monitoring VIII, 98270G (17 May 2016); https://doi.org/10.1117/12.2229796

ACCESS THE FULL ARTICLE

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