Mr. Cody Fernandez Profile

Cody Fernandez

Research Engineer at Georgia Tech Research Institute

SPIE Involvement:

Author

Websites:

Company Website

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 | 23 April 2020 Presentation + Paper

Wave optics simulator for lasers in time-evolving turbulence

Greg Badura, Cody Fernandez, John Stewart

Proceedings Volume 11410, 1141004 (2020) https://doi.org/10.1117/12.2558922

KEYWORDS: Optical simulations, Atmospheric propagation, Turbulence, Receivers, Wave propagation, Atmospheric optics, Laser beam propagation, Computer simulations, Laser optics, Beam propagation method

Read Abstract +

Atmospheric optical turbulence can be characterized as refractive index variations along a beam's propagation path due to local fluctuations in temperature and humidity. Turbulence randomly perturbs the wavefront of a beam traveling through the medium, leading to effects such as scintillation and beam wandering. Wave optics simulations use phase screens and Fourier techniques to accurately model phase change of light sources as they travel through turbulence. Georgia Tech Research Institute has enhanced the open-source wave optics toolbox known as WavePy to accurately simulate the propagation of a laser beam over a path length of time- evolving horizontal turbulence. The simulation tool incorporates an optimization routine designed to accept scenario parameters and return receiver and source plane sampling parameters that ensure accuracy and fidelity of the simulation output. This simulation tool is designed to minimize the potential for common faults of wave optics simulations, including: phase-wrapping of the atmospheric phase screens over time, energy loss of the beam over the propagation path, and aliasing of scintillation effects at the receiver plane. This simulator has applications towards informing the design of detectors that can accommodate the changing angle of divergence of the beam as it approaches the detector, which is an important consideration for systems such as laser beam rider missile guidance systems. Initial results towards modeling the effects of varying beam parameters and simulation conditions are presented and analyzed.

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