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中文摘要：
光纤旋转连接器是一种无源光纤器件，一般被用采耦舍光信号通过一个旋转连接面．目前利用光互连技术设计的多通道光纤旋转结构比较复杂，故设计了一种无源多路空间互连光纤旋转连接器．该连接器利用空间光互连技术和渡分复用技术传输多路光信号．测试了多路旋转连接器在1310nm和1550nm渡段下的性能，可以得知：5-1310nm波段旋转连接器的插入损耗小于1．55dB，旋转变化量最大为0．28dB，1550nm波段的最大插入损耗为1．20dB，旋转变化量小于0．43dB；旋转连接器2个通道之间的隔离度大于31dB．
英文摘要：
Fiber optic rotary joint （ FOR J） is one of passive components, which is used to transmit optical signals from a stationary platform to a rotating platform through a relatively rotating interface. A multi-channel FOR J, by incorporating spatial interconnection and wavelength division multiplexing （WDM） technologies, is proposed and fabricated. It provides high data rate （ over GBPS） and bi-directional signals transmission and includes an optical coupling system, isolators and relative WDM components. The insertion loss of this multichannel FORJ is measured through a light wave multi-meter （LM）, while the output spectrum is monitored using the optical spectrum analyzer （OSA）. The maximum insertion loss at wavelength window 1 310 nm is about 1.55 dB and the insertion loss at wavelength window 1 550 nm is less than 1.20 dB. The insertion loss variation due to rotation at wavelength window 1 310 nm and 1 550 nm is less than 0. 28 dB and 0. 43 dB, respectively.The test isolation between the 1 310 nm and 1 550 nm optical signals of all outputs is more than 31 dB. This multi-pass FORJ meets the requirements in most applications.
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