pp. 641-650
S&M1101 Research Paper of Special Issue https://doi.org/10.18494/SAM.2015.1114 Published: September 7, 2015 A Two-Photon Single-Laser Optical Data Storage System in a Multilayer Structure [PDF] Qun Hao, Xuemin Cheng, Xinnan Hou and Jianshe Ma (Received July 2, 2014; Accepted March 23, 2015) Keywords: optical data storage, single-laser system, two-photon system, multilayer structure
In this work, a two-photon recording system in a 50-layer structure is designed with each recording layer containing 4.7 GB of data, similar to the capacity of a single-layer digital versatile disc, with the total capacity becoming 235 GB/disc. By the use of a single-laser system to realize recording and reading, a multilayer disc structure is applied in which the groove structure is set on the substrate for servo control; the laser is separated by a polarized beam splitter (PBS) into two parts, one for recording and the other for servo control in the optical system. The simulation results show the feasibility of high-density optical data storage using a single laser in a multilayer structure. The experimental platform is set up in which the focus error signal is verified.
Corresponding author: Xuemin ChengCite this article Qun Hao, Xuemin Cheng, Xinnan Hou and Jianshe Ma, A Two-Photon Single-Laser Optical Data Storage System in a Multilayer Structure, Sens. Mater., Vol. 27, No. 8, 2015, p. 641-650. |