Full Content is available to subscribers

Subscribe/Learn More  >
Proceedings Article

Multiaxial single-mode beam combiner

[+] Author Affiliations
Oswald Wallner

Technische Univ. Wien (Austria) and European Space Agency (Netherlands)

Josep M. Perdigues Armengol, Anders L. Karlsson

European Space Agency (Netherlands)

Proc. SPIE 5491, New Frontiers in Stellar Interferometry, 798 (October 20, 2004); doi:10.1117/12.551072
Text Size: A A A
From Conference Volume 5491

  • New Frontiers in Stellar Interferometry
  • Wesley A. Traub
  • USA | June 21, 2004

abstract

To achieve high rejection ratios with a nulling interferometer, the beams to be combined have to be as equal as possible, especially concerning the transverse field distribution. This requires highly symmetric beam recombination stages as well as modal wavefront filtering. Usually co-axial beam recombination employing beam splitters is used, ideally in highly symmetrizing double-pass configurations. Considering that a single-mode waveguide is required anyway for spatial wavefront filtering, it seems reasonable to incorporate the functionalities of beam recombination and modal filtering in a single device. If the beams to be combined are injected multi-axially into the single-mode waveguide, co-axial beam recombination is obtained within the waveguide. We show that such beam recombination stages may outperform conventional symmetric co-axial realizations with respect to optical throughput and system complexity.

© (2004) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Oswald Wallner ; Josep M. Perdigues Armengol and Anders L. Karlsson
"Multiaxial single-mode beam combiner", Proc. SPIE 5491, New Frontiers in Stellar Interferometry, 798 (October 20, 2004); doi:10.1117/12.551072; http://dx.doi.org/10.1117/12.551072


Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).

Figures

Tables

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.