Title :
Experimental verification of coherent addition technique in coaxial holographic storage
Author :
Tanaka, Kenji ; Hara, Masaaki ; Tokuyama, Kazutatsu ; Takasaki, Koji ; Okada, Hitoshi ; Okamoto, Yoshiki ; Mori, Hidenori ; Fukumoto, Atsushi ; Okada, Kanzo
Author_Institution :
Tera Bytes Memory Dev. Dept., Sony Corp., Shinagawa
Abstract :
We have experimentally evaluated the coherent addition technique, and revealed that the coherent addition can enhance detected data intensity and realize clear three-level data retrieving. Moreover, we have achieved great improvements in the multiplexed performance, which are the SNR gain of +3.5 dB and the data density increase with the factor of 2. We consider that this technique will strongly contribute to future holographic technologies.
Keywords :
holographic storage; coaxial holographic storage; coherent DC light; coherent addition technique; data-retrieving technique; Coaxial components; Diode lasers; Equalizers; Focusing; Holographic optical components; Holography; Information retrieval; Neodymium; Optical polarization; Scanning probe microscopy;
Conference_Titel :
Optical Data Storage Topical Meeting, 2009. ODS '09.
Conference_Location :
Lake Buena Vista, FL
Print_ISBN :
978-1-4244-3342-1
Electronic_ISBN :
978-1-4244-3343-8
DOI :
10.1109/ODS.2009.5031742
