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Design and performance evaluation of 1-by-64 multimode interference power splitter for optical communications

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3 Author(s)
Rasmussen, T. ; Electromagn. Inst., Tech. Univ. Denmark, Lyngby, Denmark ; Rasmussen, J.K. ; Povlsen, J.H.

A 1-by-64 multimode interference power splitter in SiO2 has been designed for use in fiber-optics communication systems. The splitter exhibits a minimum loss of 0.5 db and a uniformity of 1.7 dB at a wavelength of 1.55 μm. The polarization sensitivity is below 0.14 dB, the reflection level below -55 dB, and the optical bandwidth 30 nm. The fabrication tolerances are ±0.1 mm on the length and ±3.5 μm on the width of the multimode section of the splitter. In comparison with a branching-type splitter it is found that the designed device is approximately 30% shorter than the branching-type device for comparable losses

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Lightwave Technology, Journal of  (Volume:13 ,  Issue: 10 )