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Proceedings Article

Measurement of spatial filtering capabilities of single mode infrared fibers

[+] Author Affiliations
A. Ksendzov, E. Bloemhof, V. White, J. K. Wallace, R. O. Gappinger

Jet Propulsion Lab.

J. S. Sanghera, L. E. Busse, W. J. Kim, P. C. Pureza, V. Q. Nguyen, I. D. Aggarwal

Naval Research Lab.

S. Shalem, A. Katzir

Tel Aviv Univ. (Israel)

Proc. SPIE 6268, Advances in Stellar Interferometry, 626838 (June 28, 2006); doi:10.1117/12.673388
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From Conference Volume 6268

  • Advances in Stellar Interferometry
  • John D. Monnier; Markus Schöller; William C. Danchi
  • Orlando, FL | May 24, 2006

abstract

Spatial filtering is necessary to achieve deep nulls in optical interferometer and single mode infrared fibers can serve as spatial filters. The filtering function is based on the ability of these devices to perform the mode-cleaning function: only the component of the input field that is coupled to the single bound (fundamental) mode of the device propagates to the output without substantial loss. In practical fiber devices, there are leakage channels that cause light not coupled into the fundamental mode to propagate to the output. These include propagation through the fiber cladding and by means of a leaky mode. We propose a technique for measuring the magnitude of this leakage and apply it to infrared fibers made at the Naval Research Laboratory and at Tel Aviv University. All measurements are performed at 10.5 μm wavelength.

© (2006) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

A. Ksendzov ; E. Bloemhof ; V. White ; J. K. Wallace ; R. O. Gappinger, et al.
"Measurement of spatial filtering capabilities of single mode infrared fibers", Proc. SPIE 6268, Advances in Stellar Interferometry, 626838 (June 28, 2006); doi:10.1117/12.673388; http://dx.doi.org/10.1117/12.673388


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