Accession Number:

ADA456331

Title:

Beam Divergence from an SMF-28 Optical Fiber

Descriptive Note:

Memorandum rept. 1 Jul 2005-24 Aug 2006

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC

Report Date:

2006-10-06

Pagination or Media Count:

17.0

Abstract:

We present a calculation and experimental results using three different approaches for the spatial divergence of an optical beam exiting a standard, single-mode telecommunications-grade optical fiber SMF-28 operating near 1550 nm wavelength. The analysis shows some pitfalls for a common imaging technique for determining beam width and shows good agreement with theory when the beam width measurement is performed using either a knife-edge or pinhole approaches. These results are important for maximizing coupling efficiency between single-mode fibers and photodetectors.

Subject Categories:

  • Optics
  • Radiofrequency Wave Propagation
  • Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE