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  • Authors: Le, Duy Tien; Le, Trung Thanh (2017)

  • We propose a new structure for creating the Fano resonance and electromagnetically induced transparency couplers. The structure is based on 4x4 multimode interference couplers. The proposed devides have advantages of compactness, large tolerance fabrication. The tranfer matrix method (TMM) and numerical methods are used for analytical analysis and design of the device.

  • Article


  • Authors: Le, Duy Tien; Le, Trung Thanh (2017)

  • We present a study of coupled resonator induced transparency (CRIT) and of coupled resonator induced absorption (CRIA) using only one 4x4 multimode interference coupler and two microring resonators. The structure has advantages of compactness, ease of fabrication on the same chip and no crossover. Our analysis shows that sharp Fano resonance,

  • Article


  • Authors: Le, Duy Tien; Do, The Duong; Nguyen, Van Khoi; Nguyen, Anh Tuan; Le, Trung Thanh (2017)

  • We propose a method for generating the tunable Fano resonance line sharp by using only one 4x4 multimode interference (MMI) coupler. We show that our new device structure acting an interferometer and we employ a microring resonator and phase shifter to control the shape. The analytical analysis and FDTD simulations have been used for the first order design. The device has advantages of compactness, high tolerance fabrication and ease of fabrication on the same chip.

  • Article


  • Authors: Le, Trung Thanh (2011)

  • Chip level optical links based on VLSI photonic integrated circuits have been proposed to replace metal electrical data paths in cases where high frequencies make electrical traces impractical. This is especially relevant to highspeed clock signals as silicon CMOS circuit technology is scaled higher in speed to the GHz range and beyond. In this paper, the realization of optical couplers and power taps based on 3x3 multimode interference structures using CMOS technology is presented. The proposed devices can be useful for all-optical interconnects, clock distribution and many other all-optical processing applications. The transfer matrix method and the 3D Beam Propagation Method (3D BPM) are used to optimize the proposed devices.