An Accurate Characterization Method for Integrated Polarization Converters

Abstract

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Demonstration of an On-Chip TE-Mode Optical Circulator

“…The isolation ratio computed between two opposite ports reaches a maximum value of 27.0 dB, while a minimum isolation of 18.6 dB is found. For the PCs implemented in this device, the measured polarization conversion efficiency (PCE) is 96%±0.5%, using a 4-port characterization method [14]. This incomplete conversion contributes to the transmittance differences among the port pairs.…”

“…In this paper, an on-chip TE-mode circulator is proposed on the IMOS platform, which is promising for the next-generation PIC with compact footprint and low power consumption. Ultra-small (<5 μm length) and efficient (>97.5% polarization conversion efficiency) PCs are implemented to achieve TE mode operation [14]. In order to obtain sufficiently large NRPS for the TM mode, while maintaining a relatively large bonding tolerance.…”

Scaling photonic integrated circuits with InP technology: A perspective

“…The cross-sectional size reduction directly leads to the passive miniaturization to the same compactness levels achievable with high-confinement SOI technologies. Examples include ultra-sharp 1 μm-radius bends, 122 ultra-short 4 μm-long polarization rotators, 123,124 and 3 μm-long fully reflective photonic crystal reflectors, 125 as seen in Fig. 4…”