Analysis of spatial modes of the Raman scattering stokes component radiation excited in an extensive multimode waveguide

Maksim Kitsak; Anatoly I. Kitsak

doi:10.1117/12.752153

27 July 2007 Analysis of spatial modes of the Raman scattering stokes component radiation excited in an extensive multimode waveguide

Maksim Kitsak, Anatoly I. Kitsak

Author Affiliations +

Proceedings Volume 6729, ICONO 2007: Coherent and Nonlinear Optical Phenomena; 67291Y (2007) https://doi.org/10.1117/12.752153
Event: The International Conference on Coherent and Nonlinear Optics, 2007, Minsk, Belarus

Abstract

We conduct a theoretical analysis of the Stokes component mode structure of the Raman scattering. The Raman scattering is excited in a multimode waveguide with pump radiation having statistics corresponding to the model of the narrow-band Gaussian noise. We obtain an analytical relation connecting the number of spatially coherent modes of the Stokes component, characteristics of the waveguide and conditions of the Raman scattering excitation. It follows from the obtained relation that the Raman scattering spatial coherency degree at the waveguide's exit is determined by the number of the spatial modes of pump radiation and the amplification of the Stokes radiation throughout the waveguide's length. There exists a threshold in the amplification corresponding to the unlimited increase of the number of the spatially coherent modes of the Raman scattering and therefore to a zero of spatial coherency. Conducted estimations show that at the Raman scattering threshold value of the radiation intensity the number of the spatially coherent modes of the Raman scattering Stokes component should be comparable to that of the thermal source. Experimentally, measured dispersion of the spatial intensity fluctuations of the Stokes component isolated with an interference filter (spectral bandwidth ~ 1nm, λ = 620nm) is three time smaller than that of the luminescent lamp radiation

Citation Download Citation

Maksim Kitsak and Anatoly I. Kitsak "Analysis of spatial modes of the Raman scattering stokes component radiation excited in an extensive multimode waveguide", Proc. SPIE 6729, ICONO 2007: Coherent and Nonlinear Optical Phenomena, 67291Y (27 July 2007); https://doi.org/10.1117/12.752153

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
5 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Raman scattering

Waveguides

Statistical analysis

Lamps

Charge-coupled devices

Raman spectroscopy

CCD image sensors

Show All Keywords

Keywords/Phrases

Search In:

Publication Years