Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
Opt Express. 2010 Feb 15;18(4):3444-55. doi: 10.1364/OE.18.003444.

Implementation of a digital optical phase conjugation system and its application to study the robustness of turbidity suppression by phase conjugation.

Author information

  • 1Department of Electrical Engineering, California Institute of Technology, 1200 E. California Blvd., MC 136-93, CA, 91125, USA. mcui@caltech.edu

Abstract

In this work, we report a novel high capacity (number of degrees of freedom) open loop adaptive optics method, termed digital optical phase conjugation (DOPC), which provides a robust optoelectronic optical phase conjugation (OPC) solution. We showed that our prototype can phase conjugate light fields with approximately 3.9 x 10(-3) degree accuracy over a range of approximately 3 degrees and can phase conjugate an input field through a relatively thick turbid medium (micro(s)l approximately 13). Furthermore, we employed this system to show that the reversing of random scattering in turbid media by phase conjugation is surprisingly robust and accommodating of phase errors. An OPC wavefront with significant spatial phase errors (error uniformly distributed from - pi/2 to pi/2) can nevertheless allow OPC reconstruction through a scattering medium with approximately 40% of the efficiency achieved with phase error free OPC.

PMID:
20389354
[PubMed - indexed for MEDLINE]
PMCID:
PMC3378352
Free PMC Article

Images from this publication.See all images (8)Free text

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Optical Society of America Icon for PubMed Central
    Loading ...
    Write to the Help Desk