Guanyu Chen

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PURPOSE We aimed to evaluate the feasibility and clinical effectiveness of CT-guided 125I brachytherapy for distant oral and maxillofacial metastases. MATERIALS AND METHODS We retrospectively analyzed 65 patients with 84 distant oral and maxillofacial metastases. Thirty-one patients with 38 lesions received 125I brachytherapy (group A) and 34 with 46(More)
A novel adiabatic couplers (ACs) based broadband and fabrication-tolerant two-mode multiplexer (MUX) is designed using silicon-on-insulator (SOI) platform. Being different from the previously reported ACs-based scheme, the converted and multiplexed signals are on conventional modes, rather than supermodes. The experimental results are in good agreement with(More)
We propose and fabricate a silicon based dual-detector optical receiver, which consists of a two dimensional (2D) grating coupler (GC) and two separate germanium photodetectors (Ge PDs). The 2D GC performs polarization diversity, and thus demultiplexing and detection for polarization division multiplexed (PDM) signals can be achieved. Through a specific(More)
The phase regeneration for the mode-division multiplexing (MDM) differential phase shift keying (DPSK) signals in a single multimode silicon waveguide, is proposed and successfully demonstrated in the simulation. The regeneration is based on the mode-selective phase sensitive amplification (PSA). When the pumps and the signal are carried on the same mode,(More)
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