Transverse dynamics of speckles in output radiation of optical fiber and determination of intermode dispersion generated under probing of laser diode with GHz frequency deviation

Garif G. Akchurin; Alexander G. Akchurin

doi:10.1117/12.589298

25 March 2005 Transverse dynamics of speckles in output radiation of optical fiber and determination of intermode dispersion generated under probing of laser diode with GHz frequency deviation

Garif G. Akchurin, Alexander G. Akchurin

Author Affiliations +

Proceedings Volume 5727, Terahertz and Gigahertz Electronics and Photonics IV; (2005) https://doi.org/10.1117/12.589298
Event: Integrated Optoelectronic Devices 2005, 2005, San Jose, California, United States

Abstract

We have observed for the first time the dynamics of a speckle field generated in bulk scattering partly ordered media or low-mode optical fibers probed by a laser diode ( λ = 654 nm) and a compact diode-pumped YAG:Nd laser ( λ = 532 nm) in the regime of frequency tuning. The dynamic coherent speckle-photo-chromic effect can be observed provided that the deviation of the probing radiation frequency is comparable with or greater than the effective phase delay difference between modes in the optical fiber of between waves in the random scattering medium. Using the proposed photochromic speckle technique, it is possible to determine the intermode dispersion of fibers with a length on the order of one meter and the dispersion of phase delay in test fluoroplastic structures in the regimes of several fold scattering (for a sample thickness of 10-20 μm) or multiple scattering (for a thickness of up to ~ 2 cm).

Citation Download Citation

Garif G. Akchurin and Alexander G. Akchurin "Transverse dynamics of speckles in output radiation of optical fiber and determination of intermode dispersion generated under probing of laser diode with GHz frequency deviation", Proc. SPIE 5727, Terahertz and Gigahertz Electronics and Photonics IV, (25 March 2005); https://doi.org/10.1117/12.589298

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