A surface-normal input/output volume holographic grating coupler (VHGC)
operating at 1550nm wavelength region by using a
10μm-thick DuPont photopolymer film is designed and
fabricated. The angular and wavelength responses of the input/output VHGC are
investigated in order to validate applicability of this device in integrated optics
and optical communications. The effect of incident-beam position on the output
reflectance to determine optimum condition for input coupling is also presented. The
fabricated input/output VHGC exhibited an angular selectivity of
~0.027°, a wavelength selectivity of ~0.8 nm,
and an output peak reflectance of 34.13%.
© 2012 Optical Society of Korea
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