Fast photorefractive self focusing in InP:Fe semiconductor at near infrared wavelengths

Delphine Wolfersberger; Cristian Dan; Naïma Khelfaoui; Nicolas Fressengeas; Leblond Hervé

doi:10.1117/12.780032

8 May 2008 Fast photorefractive self focusing in InP:Fe semiconductor at near infrared wavelengths

Delphine Wolfersberger, Cristian Dan, Naïma Khelfaoui, Nicolas Fressengeas, Leblond Hervé

Proceedings Volume 6994, Photon Management III; 699409 (2008) https://doi.org/10.1117/12.780032
Event: SPIE Photonics Europe, 2008, Strasbourg, France

Abstract

Self-trapping of optical beams in photorefractive (PR) materials at telecommunications wavelengths has been studied at steady state in insulators such as SBN [1] and in semiconductor InP:Fe [2], CdTe [3]. PR self-focusing and soliton interactions in semiconductors find interesting applications in optical communications such as optical routing and interconnections because of several advantages over insulators: their sensitivity to near-infrared wavelengths and shorter response time. Photorefractive self focusing in InP:Fe is characterized as a function of beam intensity and temperature. Transient self focusing is found to occur on two time scales for input intensities of tens of W/cm² (one on the order of tens of μs, one on the order of milliseconds). A theory developed describes the photorefractive self focusing in InP:Fe and confirmed by steady state and transient regime measurements. PR associated phenomena (bending and self focusing) are taking place in InP:Fe as fast as a μs for intensities on the order of 10W/cm² at 1.06 μm. Currently we are conducting more experiments in order to estimate the self focusing response time at 1.55μm, to clarify the temporal dynamic of the self focusing and to build up a demonstrator of fast optical routing by photorefractive spatial solitons interactions.

Citation Download Citation

Delphine Wolfersberger, Cristian Dan, Naïma Khelfaoui, Nicolas Fressengeas, and Leblond Hervé "Fast photorefractive self focusing in InP:Fe semiconductor at near infrared wavelengths", Proc. SPIE 6994, Photon Management III, 699409 (8 May 2008); https://doi.org/10.1117/12.780032

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
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Crystals

Semiconductors

Electrons

Transient nonlinear optics

Dielectrics

Infrared lasers

Laser crystals

Show All Keywords

Keywords/Phrases

Search In:

Publication Years