Diffraction-grating-type phase converters for conversion of Hermite-Laguerre-Gaussian mode into Gaussian mode
Applied Optics, Vol. 49, Issue 9, pp. 1513-1517 (2010)
http://dx.doi.org/10.1364/AO.49.001513
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Abstract
Diffraction gratings that can be used to convert the Hermite–Laguerre–Gaussian (HLG) mode into the Gaussian mode were obtained; these modes are space modes of light beams. The HLG mode is inter mediate between the Hermite–Gaussian and the Laguerre–Gaussian modes. Generally, gratings produced from interfering two beams as holograms contain information of not only the phase modulation factor but also the amplitude modulation factor. Thus, they cannot be expected to provide high conversion efficiency. To produce high-efficiency gratings, the interference equation is divided into two factors. The gratings produced by considering only the phase factors act as phase converters.
© 2010 Optical Society of America
OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(120.5060) Instrumentation, measurement, and metrology : Phase modulation
(140.3300) Lasers and laser optics : Laser beam shaping
(050.4865) Diffraction and gratings : Optical vortices
ToC Category:
Diffraction and Gratings
History
Original Manuscript: November 18, 2009
Revised Manuscript: February 17, 2010
Manuscript Accepted: February 18, 2010
Published: March 10, 2010
Citation
Atsushi Syouji, Kazuyoshi Kurihara, Akira Otomo, and Shingo Saito, "Diffraction-grating-type phase converters for conversion of Hermite-Laguerre-Gaussian mode into Gaussian mode," Appl. Opt. 49, 1513-1517 (2010)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-49-9-1513
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