Document Type
Conference Paper
Publication Date
7-1998
Publication Source
Proceedings of SPIE: 1998 International Conference on Applications of Photonic Technology III: Closing the Gap between Theory, Development, and Applications
Abstract
Perfect Bragg matching is generally desirable for accurate optical interconnections with holographic gratings. In reality, however, gratings may be illuminated by READ beams with non-Bragg-matched angles, or wavelengths, or both. In such cases, the scattered beams are generally misdirected, and may suffer loss of efficiency and possibly more serious errors such as crosstalk noise or missed connections. A conventional wave-vector triad method of analyzing the scattered beam errors leads readily to near-Bragg estimates of the output angular misalignment. However, the READ wave-vector triads appear to indicate a possible wavelength shift in the output beam even with a Bragg-matched READ wavelength, which is counter-intuitive.
This paper presents some of the theoretical findings for output beam characteristics under READ misalignments, and the results of a series of experiments aimed at verifying both the output angular error as well as whether or not any unexpected wavelength shift occurs in the output beam. Based on the experimental findings, the interpretation of the misaligned READ wave-vector triad is appropriately modified.
Inclusive pages
835-841
ISBN/ISSN
0277-786X
Document Version
Published Version
Copyright
Copyright © 1998, Society of Photo-optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited.
Publisher
Society of Photo-optical Instrumentation Engineers
Place of Publication
Ottawa, Canada
Volume
3491
Peer Reviewed
yes
eCommons Citation
Chatterjee, Monish Ranjan and Ray, Vivek, "Experimental Investigations of Wavelength and Angular Errors in Holographic Gratings with Non-Bragg-matched READ Beams" (1998). Electrical and Computer Engineering Faculty Publications. 337.
https://ecommons.udayton.edu/ece_fac_pub/337
Included in
Computer Engineering Commons, Electrical and Electronics Commons, Electromagnetics and Photonics Commons, Optics Commons, Other Electrical and Computer Engineering Commons, Systems and Communications Commons
Comments
This document is provided for download in compliance with the publisher's policy on self-archiving. Permission documentation is on file.
DOI: http://dx.doi.org/10.1117/12.328637