发明授权
- 专利标题： Apparatus and method to determine an optimal power level to encode information holographically
- 专利标题（中）： 确定全息地编码信息的最佳功率电平的装置和方法
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申请号： US11737670申请日： 2007-04-19
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公开(公告)号： US07813250B2公开(公告)日： 2010-10-12
- 发明人: Allen Keith Bates , Nils Haustein , Craig Anthony Klein , Daniel James Winarski
- 申请人： Allen Keith Bates , Nils Haustein , Craig Anthony Klein , Daniel James Winarski
- 申请人地址： US NY Armonk
- 专利权人： International Business Machines Corporation
- 当前专利权人： International Business Machines Corporation
- 当前专利权人地址： US NY Armonk
- 代理机构： Quarles & Brady LLP
- 代理商 Dale F. Regelman
- 主分类号： G11B7/00
- IPC分类号： G11B7/00
摘要：
A method is disclosed to determine an optimal power level to encode information holographically. The method sets (N) evaluation power levels, displays an evaluation image on a spatial light modulator. For each value of (i), the method energizes a light source using the (i)th power level, generates the (i)th reference beam, generates the (i)th carrier beam, forms the (i)th data beam comprising the evaluation image, forms the (i)th hologram using the (i)th reference beam and the (i)th data beam, and encodes the (i)th hologram in a holographic data storage medium, where (i) is greater than or equal to 1 and less than or equal to (N).