Improvement in Temperature Tolerance of Holographic Data Storage Using Wavelength Tunable Laser
スポンサーリンク
概要
- 論文の詳細を見る
In this paper, we report a new method of increasing the temperature tolerance of holographic recording media using a wavelength tunable laser. Of all holographic media, photopolymer media are particularly sensitive to temperature, thus some methods are required to maintain a low bit-error ratio (BER) as temperature changes. We demonstrate here how to maintain a high signal-to-noise ratio (SNR) as temperature changes using a wavelength tunable blue external cavity laser diode (ECLD) currently under development. For comparison, we analyze the temperature tolerance by a angle-tuning method and a wavelength-tuning method. We have focused that a hybrid of wavelength-tuning and angle-tuning method, we can read out the full of the image at 60°C, which is $+30$°C above the recording temperature. Moreover, we propose a recording method that allows the wavelength to be adjusted to the temperature changes. By adjusting the wavelength linearly to the temperature changes during recording, we can read out the holograms recorded at different temperatures using the wavelength corresponding to the readout temperature.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2006-02-15
著者
-
Watanabe Kenjiro
Tera Bytes Memory Development Department Core Technology Development Group Corporate R&d Sony Co
-
Tanaka Tomiji
Tera Bytes Memory Development Department Core Technology Development Group Corporate R&d Sony Co
-
Toishi Mitsuru
Tera Bytes Memory Development Department Core Technology Development Group Corporate R&d Sony Co
-
Tanaka Tomiji
Tera Bytes Memory Development Department, Core Technology Development Department, Core Component Business Unit, Sony Corporation, 6-7-35 Kitashinagawa, Shinagawa-ku, Tokyo 141-0001, Japan
-
Toishi Mitsuru
Tera Bytes Memory Development Department, Core Technology Development Department, Core Component Business Unit, Sony Corporation, 6-7-35 Kitashinagawa, Shinagawa-ku, Tokyo 141-0001, Japan
-
Sugiki Mikio
Tera Bytes Memory Development Department, Core Technology Development Department, Core Component Business Unit, Sony Corporation, 6-7-35 Kitashinagawa, Shinagawa-ku, Tokyo 141-0001, Japan
関連論文
- Line Segment Hologram Writer Using Single-Mode Blue Laser and One-Dimensional Spatial Light Modulator
- Analysis of Temperature Change Effects on Hologram Recording and a Compensation Method
- Improvement in Temperature Tolerance of Holographic Data Storage Using Wavelength Tunable Laser
- Linear Reproduction of a Holographic Storage Channel using Coherent Addition of Optical DC Components
- High Resolution Readout Using a Near-Field Optical Probe Embedded in a Condensed Lens
- High Density Recording of 270 Gbit/in.2 in a Coaxial Holographic Recording System
- Simulation of Holographic Data Storage for the Optical Collinear System