The method of the passive optical component testing was analyzed.

综合分析了光无源器件的测试内容及测试方法。

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Optical attenuator is a kind of widely used passive optical component.

光衰减器是一种广泛应用的无源光器件。

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It has a wide application in optical communication and is a very important passive optical component.

它在光通信中具有广泛的应用，是一种非常重要的光学无源器件。

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In an otherwise ugly equity market today, investors are piling in to optical networking component stocks.

FORBES: JDSU: The Stock Market Has Optical Networking Fever

Stratos International had quite a day, too, as the optical-component maker received its own stream of investor enthusiasm.

FORBES: Magazine Article

The group is trading sharply lower following disappointing guidance this morning from optical networking component provider Ciena (CIEN).

FORBES: Optical Stocks Slide On Ciena's Weak April Quarter Outlook