WDM optical filter and glass substrate for use in the WDM optical filter

发明授权

US06465105B1 WDM optical filter and glass substrate for use in the WDM optical filter 失效

标题翻译： WDM光学滤波器和用于WDM光学滤波器的玻璃基板

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专利标题： WDM optical filter and glass substrate for use in the WDM optical filter
专利标题（中）： WDM光学滤波器和用于WDM光学滤波器的玻璃基板
申请号： US09630775

申请日： 2000-08-02
公开(公告)号： US06465105B1

公开(公告)日： 2002-10-15
发明人: Robert W. Johnson , Hiroaki Yanagita , Kazuaki Hashimoto
申请人： Robert W. Johnson , Hiroaki Yanagita , Kazuaki Hashimoto
主分类号： B32B1706
IPC分类号： B32B1706

WDM optical filter and glass substrate for use in the WDM optical filter

摘要：

A glass substrate is for use in a WDM optical filter which has an optical multilayer coated on the glass substrate and is formed by glass which has a composition related to the optical multilayer so as to assure stable multiplexing/demultiplexing operation in the optical filter. The glass includes SiO2 as a glass network-former and has an average linear thermal expansion coefficient between 100×10−7/K and 130×10−7/K within a temperature range between −30° C. and +70° C. The glass may include TiO2, Al2O3, and R2O (R: alkali metal element) in addition to SiO2 and may have a hardness suitable for the optical multilayer.

摘要（中）：

玻璃基板用于WDM光学滤波器，其具有涂覆在玻璃基板上的光学多层膜，并且由具有与光学多层相关的组成的玻璃形成，从而确保滤光器中的稳定的多路复用/解复用操作。该玻璃包括SiO 2作为玻璃网络形成剂，并且在-30℃至+ 70℃之间的温度范围内具有100×10 -7 / K至130×10 -7 / K之间的平均线性热膨胀系数。玻璃可包括 TiO 2，Al 2 O 3和R 2 O（R：碱金属元素），并且可以具有适合于光学多层的硬度。

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