Method for improving optical recording media reading signal stability

The invention discloses a method for improving the stability of optical recording media reading signals, comprising the steps of: adjusting the absorptivity of an optical recoding media by changing the thickness of the optical recording media, namely improving the absorptivity of the optical recodin...

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Bibliographische Detailangaben
Hauptverfasser: TANG WEITAI, DENG XIANXIANG, WANG YONG
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention discloses a method for improving the stability of optical recording media reading signals, comprising the steps of: adjusting the absorptivity of an optical recoding media by changing the thickness of the optical recording media, namely improving the absorptivity of the optical recoding media by increasing the thickness of the optical recording media; and lowering the ratio of erasing power to writing power. According to the method, the disc absorptivity is controlled by adjusting the recording media thickness, and matched with the ratio of writing power (Pw) to erasing power (Pe) of the recording laser, so that a laser irradiating power most appropriate for changing specific recording film optical property is got. With the initial writing signal jitter value not being changed greatly, as the recording layer thickness increases appropriately, when the absorptivity corresponds to specific absorptivity scope and matches well with the low ratio of erasing power (Pe) and writing power (Pw), superior