RECORDING OF VOLUME HOLOGRAM USING A BEAM PATTERN FROM TAPERED OPTICAL-FIBER

Photorefractive volume hologram was recorded and probed using a light diffracted from a tapered optical fiber as a reference beam, A single- mode fiber (SMF) was chemically etched and tapered to give a complicat ed beam pattern, and it is shown that the tapered optical fiber can be utilized to increase the storage density of the volume hologram, Spat ial selectivity of the volume hologram with this method was increased by two times compared to the normal SMF referencing, which is due to t he fact that the complicated beam pattern has little correlation with its shifted version.