Design and fabrication of a low-loss and asymmetric 1 × 5 arbitrary optical power splitter

Abstract

In this paper, a low-loss and wavelength-insensitive asymmetric 1×5 arbitrary optical power splitter is designed and optimized, which is composed of a three-branch and two Y-branch elements. A low-loss and wavelength-independent arbitrary 1×5 optical power splitter can be obtained. Asymmetric 1×5 optical power splitters of different output ratios are fabricated using silica-based planar lightwave circuit (PLC) technology on a 6-inch quartz substrate. The measured results show that the IL_output1, IL_output2∼5, UNIF_output2∼5, PDL, and WDL of the output ratio 33%:67%, 50%:50%, and 95%:5% are less than (5.302 dB, 8.483 dB, 0.422 dB, 0.191 dB, 0.345 dB), (3.46 dB, 9.71 dB, 0.28 dB, 0.119 dB, 0.231 dB), and (1.52 dB, 14.15 dB, 0.44 dB, 0.366 dB, 0.561 dB), respectively, in the wavelength of 1.27 μm, 1.31 μm, 1.49 μm, 1.55 μm, and 1.625 μm.

Ultrasmall in-plane demultiplexer enabled by an arrayed one-dimensional photonic crystal nanobeam cavity

“…It is worth mentioning that the insertion loss includes the coupling losses, the excess losses, and the propagation losses. 37,38 All the insertion losses for each output port of the proposed 1 × 8 OPS at wavelength of ∼1550 nm are 9.61, 9.64, 9.86, 9.83, 9.83, 9.86, 9.64, and 9.61 dB, respectively, which are the best values obtained from the optimized simulation. The excess loss is 0.69 dB.…”

5-Channel Polymer/Silica Hybrid Arrayed Waveguide Grating

“…As the centerpiece of wavelength division multiplexing (WDM), AWG has been fabricated by silicon-on-insulator [5], SiO 2 [6,7], and polymers [8][9][10][11]. Though AWG has been highly developed by the standard industry technology of planar lightwave circuits (PLCs), and the cost is being gradually reduced by the mature fabrication process of silica-based waveguide [12][13][14], the polymer AWG has its own advantages and can avoid complex preparation processes such as thermal oxidation, plasma-enhanced chemical vapor deposition (PECVD), and inductively coupled plasma (ICP) etching [12][13][14]. Compared with silica-based devices, polymer-based devices can skip several steps in manufacture, resulting in reduced prices for the setup and, especially for small batch sizes, a reduced price per unit [15][16][17].…”