Abstract
In this paper, a three-branch structure with different output widths, broadening,
and transition waveguide are discussed in detail. Based on the three-branch structure, a
compact, low-loss, and good uniformity 1 × 24 optical power splitter is designed and
fabricated using silica-based PLC technology on quartz substrate. The measurement
results show that the insertion loss, the uniformity, wavelength-dependence loss of the
splitter are less than 14.8, 0.92, and 0.93 dB, respectively, in the wavelength range
from 1.25 to 1.65 μm. The polarization dependence loss is less than 0.16 dB in the
wavelength of 1.27, 1.31, 1.49, 1.55, and 1.625 μm.
© 2014 IEEE
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