Flat-top AWG based on InP deep ridge waveguide

Pan, Pan; J, An; Zhang, Jiashun; Wang, Yue; Wang, Hongjie; Wang, Liangliang; Yin, Xiaobin; Wu, Yingliang; Li, Jianguang; Han, Qin; Hu, Xiongwei

doi:10.1016/j.optcom.2015.06.062

Cited by 8 publications

(1 citation statement)

References 13 publications

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“…To increase the transmission capacity, different approaches have been developed such as arrayed waveguide grating [2], space division multiplexing [3], [4], adiabatic elimination procedure [5], optical phase array [6], [7], nanostrips between neighboring waveguides [8], metamaterials [9], and nanophotonics clocking [10]. Moreover, waveguide arrays have been developed on different platforms, such as, silicon nitride waveguides [11], InP waveguides [12], polymer waveguides [13], and SOI waveguides [14]. It is crucial to realize sharp bends and reduce the separation between the adjacent waveguides to obtain densely packed waveguide superlattice structures with small footprints.…”

Section: Introductionmentioning

confidence: 99%

Compact and Broadband Adiabatically Bent Superlattice-Waveguides With Negligible Insertion Loss and Ultra-Low Crosstalk

Zafar

Paredes

Taha

et al. 2023

IEEE J. Select. Topics Quantum Electron.

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Broadband and ultra-low crosstalk integrated silicon superlattice waveguides are proposed and demonstrated, enabling high-density waveguide integration. The superlattice waveguides are implemented as S-shaped adiabatic bends that yield ultra-low crosstalks in the neighboring channels, and an extremely low insertion loss, for the TE polarization. Special materials or complex fabrication steps are not required. The bent superlattice waveguides are measured to have an average insertion loss ≤ 0.1 dB for all channels. The average crosstalk values are ≤ −37.8 dB and ≤ −45.2 dB, in the first nearest neighboring waveguide and the second nearest neighboring waveguide, respectively. The transmission spectra are measured over the wavelength ranges of (1.24 µm to 1.38 µm) and (1.45 µm to 1.65 µm), covering both communication wavelengths of 1310 and 1550 nm. The simulation results predict an efficient broadband performance over the 500 nm wavelength range (1200 nm to 1700 nm), covering all O, E, S, C, L & U bands. The proof of concept was done for a silicon-on-insulator platform and the approach is applicable to other waveguide geometries and integrated photonic platforms.

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