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Beam Divergence from an SMF-28 Optical Fiber.

ADA456331

Publication Date	2006
Personal Author	Kowalevicz, J. A.; Bucholtz, F.
Page Count	17
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.
Keywords	Optics Beams(Radiation) Coupling(Interaction) Image processing Experimental data Telecommunications Photodetectors Theory Measurement Optical properties Beam divergence Smf-28 optical fibers Optical fibers Optical beams Numerical apertures Spatial divergence
Source Agency	Non Paid ADAS
Corporate Authors	Naval Research Lab., Washington, DC.
Supplemental Notes	The original document contains color images. Prepared in collaboration with SFA, Inc., Crofton, MD.
Document Type	Technical Report
Title Note	Memorandum rept. 1 Jul 2005-24 Aug 2006.
NTIS Issue Number	200704

Beam Divergence from an SMF-28 Optical Fiber.

Beam Divergence from an SMF-28 Optical Fiber.
ADA456331

Publication Date	2006
Personal Author	Kowalevicz, J. A.; Bucholtz, F.
Page Count	17
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.
Keywords	Optics Beams(Radiation) Coupling(Interaction) Image processing Experimental data Telecommunications Photodetectors Theory Measurement Optical properties Beam divergence Smf-28 optical fibers Optical fibers Optical beams Numerical apertures Spatial divergence
Source Agency	Non Paid ADAS
Corporate Authors	Naval Research Lab., Washington, DC.
Supplemental Notes	The original document contains color images. Prepared in collaboration with SFA, Inc., Crofton, MD.
Document Type	Technical Report
Title Note	Memorandum rept. 1 Jul 2005-24 Aug 2006.
NTIS Issue Number	200704