【摘要】 本文阐述了光纤通信波分复用系统中自聚焦棒光栅型分路器的基本理论和实践,提出了自聚焦棒光栅型分路器的设计原则,并全部用国产元件加以实现。该分路器的分路数为4,插入损耗为6 dB,串扰损耗大于30 dB,器件尺寸为30 mm×15 mm×70 mm。理论和实验都表明用国产元件制成的分路器在性能上是可以和国外同类分路器相接近的。更多还原

【Abstract】 This paper surveys the theories and experiments of the SELFOC lens grating demultiplexer in wavelength-division multiplexing(WDM)optical fiber communi- cation systems.The corresponding design principles of the SELFOC lens grating demultiplexer are also given.The SELFOC lens grating demultiplexer with around 6dB insertion loss and greated than 30dB crosstalk attenuation has been designed and manufactured with the home products for four-channel in overall device size of 30mm×15mm×70mm.Theories and experiments show that the characterestics of demultiplexer assembled by devices home-made can expect to approach the same kind abroad.更多还原