AI Article Synopsis
- - The study presents a novel power splitter (WPS) designed using a unique multi-dimensional direct-binary-search algorithm to improve performance, cost, and fabrication reliability by optimizing various parameters.
- - The WPS effectively produces both fundamental transverse electric (TE) modes with a balanced output and features a shorter taper length compared to traditional power splitters.
- - Experimental results show that the WPS exhibits low insertion loss and crosstalk, and it can be adapted for multiple output ports with varying modes and transmittance due to tunable tap couplers.
Article Abstract
In this work, we design, fabricate, and characterize a different-mode (waveguide-connected) power splitter ((W)PS) by what we believe to be a novel multi-dimension direct-binary-search algorithm that can significantly balance the device performance, time cost, and fabrication robustness by searching the state-dimension, rotation-dimension, shape-dimension, and size-dimension parameters. The (W)PS can simultaneously generate the fundamental transverse electric (TE) and TE mode with the 1:1 output balance. Compared with the PS, the WPS can greatly shorten the adiabatic taper length between the single-mode waveguide and the grating coupler. The measured results of the different-mode (W)PS indicate that the insertion loss and crosstalk are less than 0.9 (1.3) dB and lower than -17.8 (-14.9) dB from 1540 nm to 1560 nm. In addition, based on the tunable tap couplers, the different-mode (W)PS can be extended to multiple output ports with different modes and different transmittances.
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| http://dx.doi.org/10.1364/OE.495918 | DOI Listing |
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Article Synopsis
- - The study presents a novel power splitter (WPS) designed using a unique multi-dimensional direct-binary-search algorithm to improve performance, cost, and fabrication reliability by optimizing various parameters.
- - The WPS effectively produces both fundamental transverse electric (TE) modes with a balanced output and features a shorter taper length compared to traditional power splitters.
- - Experimental results show that the WPS exhibits low insertion loss and crosstalk, and it can be adapted for multiple output ports with varying modes and transmittance due to tunable tap couplers.
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