We proposed a new kind of cascade Y-branch splitter with a branching region and a fan-out region. The length of the new device are analyzed in detail and compared with ordinary ones. The results show that the new splitter can be 10%-30% shorter than the ordinary splitters. We designed and fabricated a 1*16 splitter in K+/Na+ ion-exchanged BK7 glass. The length of the new designed splitter is 30-mm, which is 85% of the length of an ordinary splitter.
© 2005 Chinese Optics Letters
(130.3120) Integrated optics : Integrated optics devices
(230.1360) Optical devices : Beam splitters
(230.3120) Optical devices : Integrated optics devices
(230.7380) Optical devices : Waveguides, channeled
Shanying Lu, Xihua Li, Xiaoqing Jiang, and Minghua Wang, "Compact design of 1*16 cascaded Y-branch splitter," Chin. Opt. Lett. 2, 459-461 (2004)