Title :
Recording of volume hologram using a beam pattern from tapered optical fiber
Author :
Kim, Ki Hyun ; Kang, Yong Hoon ; Lee, Byoungho
Author_Institution :
Sch. of Electr. Eng., Seoul Nat. Univ., South Korea
Abstract :
A photorefractive volume hologram was recorded and probed using light diffracted from a tapered optical fiber as a reference beam. A single-mode fiber (SMF) was chemically etched and tapered to give a complicated beam pattern, and it is shown that the tapered optical fiber can be utilized to increase the storage density of the volume hologram. Spatial selectivity of the volume hologram with this method was increased by two times compared to the normal SMF referencing, which is due to the fact that the complicated beam pattern has little correlation with its shifted version.
Keywords :
holographic storage; optical fibres; optical interconnections; photorefractive materials; LiNbO/sub 3/:Fe; beam pattern; chemical etching; light diffraction; photorefractive volume hologram; reference beam; single-mode fiber; spatial selectivity; storage density; tapered optical fiber; volume hologram recording; Chemicals; Crosstalk; Etching; Holographic optical components; Light sources; Material storage; Optical fibers; Optical interconnections; Optical recording; Photorefractive materials;
Journal_Title :
Photonics Technology Letters, IEEE
