Characteristics of the Upside-down Tapered Lens Polymer Fiber Connector
倒锥透镜型塑料光纤连接器光学特性研究

A new type of polymer optical fiber connector based o n the upside-down tapered lens (UDTL) technique was proposed. To increase the n umerical aperture of polymer fiber and reduce the requirement of fiber ends to r egistration precision, the fiber end of the connector was created into an upside -down taper lens. The optical characteristics of the connector have been tested . Over 75 percent of coupling efficiency between the light source and the UDTL f iber end is in the range of 5.4 dB to 6.0 dB. More than 70 percent of connectin g losses are in the 2.1 dB~2.7 dB range. The insertion losses are in the range f rom 2.2 dB to2.58 dB as the same suite of optical fiber jumper was inserted and drawn 200 times. The measured dates show that the performance of UDTL polymer fi ber connector can meet the demand of fiber to the home.