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Realization of a Novel 1\times{\rm N} Power Splitter With Uniformly Excited Ports

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5 Author(s)
Spencer, D.T. ; Univ. of California Santa Barbara, Santa Barbara, CA, USA ; Daoxin Dai ; Yongbo Tang ; Heck, M.J.R.
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The first experimental demonstration of a novel ring resonator-based 1 × N optical power splitter is reported. We fabricate the device on a Si3N4 waveguide platform utilizing a bonded thermal oxide upper cladding. Fiber coupling and near-held-imaging experiments at 1550 nm show that a 1 × 16 power splitter achieves very low excess loss of 0.9 dB in addition to excellent uniformity of 0.4 dB. The resonances of the device show a loaded quality factor of 6 million and hnesse of 100. The device is promising for high-port-count power splitters without the need for cascaded stages. We also discuss applications requiring the wavelength selectivity of the device.

Published in:

Photonics Technology Letters, IEEE  (Volume:25 ,  Issue: 1 )