美国安科特纳JDSU 
JDSU安科特纳为目前全球最大光纤零件供应商，光通讯领域巨头之一。JDSU安科特纳的光器件几乎覆盖光通信领域的所有光器件，从无源到有源，从芯片到模块到JDSU安科特纳仪器，发展成为光电器件的大哥大。2003年，JDSU位置第一，从现有的数据显示，JDSU仍稳置世界第一的地位。

JDSU (NASDAQ: JDSU; and TSX: JDU) innovates and markets diverse technologies that enhance the way people experience the world every day. We enable fast, high-quality communications, secure financial transactions, reliable consumer electronics, green energy, differentiated brands and a host of other solutions. We provide these solutions through three business segments: Communications Test and Measurement, Communications