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Grating type optical component, a manufacturing method thereof, a mask used in manufacturing the grating type optical component, and an optical module using the grating type optical component

机译:光栅型光学部件,其制造方法,用于制造光栅型光学部件的掩模以及使用该光栅型光学部件的光学模块

摘要

A grating type optical component is provided, in which a plurality of light beams having wavelengths different from one another can be reflected, the loss is small, and the cost is low. The grating type optical component is composed of plural kinds of gratings (6a to 6d) that reflect different wavelengths of light and are formed at once in an optical fiber (2) and arranged serially in its longitudinal direction, so that there are no fusion splicing portions between the gratings. The plural kinds of serially-connected gratings (6a to 6d) are together housed in a temperature compensating package (3N) for compensating the temperature dependency of the gratings (6a to 6d). In forming the gratings (6a to 6d), prepare a phase mask (8N) in which a plurality of grating forming patterns (1a to 1d) different from one another are formed and arranged transversely. The phase mask (8N) covers the optical fiber (2) such that the grating forming patterns (1a to 1d) face the optical fiber (2). The optical fiber (2) is then irradiated with ultraviolet light through the phase mask (8N).
机译:提供一种光栅型光学部件,其中可以反射具有彼此不同的波长的多个光束,损耗小并且成本低。光栅型光学部件由反射不同的多种光栅( 6 a 6 d )组成在光纤( 2 )中一次形成并沿其纵向方向连续排列,因此在光栅之间没有熔接部分。多种串联连接的光栅( 6 a 6 d )一起容纳在温度补偿中封装( 3 N)用于补偿光栅( 6 a 6 d的温度依赖性)。在形成光栅( 6 a 6 d )时,准备一个相位掩模( 8 < / B> N),其中多个光栅形成图案( 1 a 1 d )与彼此形成并横向布置。相位掩模( 8 N)覆盖光纤( 2 ),以使光栅形成图案( 1 a >到 1 d )面对光纤( 2 )。然后,通过相位掩模( 8 N)向光纤( 2 )照射紫外线。

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