Optical discs are being sought as low-cost, earth-friendly storage candidates in response to increasing data volumes. To increase the recording density of optical disc, analog recording technique such as the Orthogonal Frequency Division Multiplexing (OFDM) method has been investigated. Since bitwise information is recorded on optical discs, it is necessary to create a column of marks corresponding to the analog signal for the OFDM method. The Delta-Sigma Modulation (DSM) is known as an analog to digital conversion method in the area of audio. This method transfers efficiently an analog signal to a binary sequence with a simple circuit. In this paper, the application of the method for analog signal recording and the simulation results of the mark recording process on the optical disc are described. The optical disc recording utilizes temperature rise of a multilayer film stack in recording process that is triggered by light focusing. A simplified, 2.5-dimension, thermal analysis is applied to do the large-scale simulation of recording mark sequence.

响应于日益增长的数据量，正在寻求将光盘作为低成本，对地球友好的存储方式。为了增加光盘的记录密度，已经研究了诸如正交频分复用（OFDM）方法的模拟记录技术。由于按位信息记录在光盘上，因此有必要为OFDM方法创建一列对应于模拟信号的标记。Delta-Sigma调制（DSM）在音频领域被称为模数转换方法。这种方法可以通过简单的电路将模拟信号有效地转换为二进制序列。本文介绍了模拟信号记录方法的应用以及光盘上标记记录过程的模拟结果。光盘记录在记录过程中利用多层膜堆叠的温度升高，该温度升高是由光聚焦触发的。使用简化的2.5维热分析来进行记录标记序列的大规模仿真。