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Christina Lim - One of the best experts on this subject based on the ideXlab platform.

  • Multifunctional Optical Interface for Fiber-Radio Systems in Heterogeneous Access Networks
    Journal of Lightwave Technology, 2008
    Co-Authors: Christina Lim, Ampalavanapillai Nirmalathas, Ka-lun Lee, Dalma Novak, Rod Waterhouse
    Abstract:

    In this paper, we investigate through simulation a proposed multi-functional Optical Interface incorporating an arrayed waveguide grating (AWG) that multiplexes multiple wavelength-interleaved dense-wavelength-division-multiplexed (DWDM) Optical RF channels while simultaneously reducing intermodulation distortion (IMD) in fiber-radio systems incorporating Optical single sideband with carrier (OSSB+C) modulation. The proposed Optical Interface is also able to simultaneously support multiple baseband transmission in an integrated wireless/wired heterogeneous access environment. We derive an analytical model and present a detailed analysis of the proposed Interface to establish the viability of its operation and quantify performance limitations. Our results show that the proposed scheme is not dependent on the inherent characteristics of the Optical carrier and a maximum IMD suppression of >9 dB can be achieved. The proposed Interface was also investigated via simulation for a larger number of DWDM channels to establish the viability and subsequently quantify the overall performance of a heterogeneous millimeter-wave fiber-radio system with other wired-access infrastructure.

  • Optical Interface for IMD Reduction in Fiber-Radio Systems with Simultaneous Baseband Transmission for Heterogeneous Access Networks
    OFC NFOEC 2007 - 2007 Conference on Optical Fiber Communication and the National Fiber Optic Engineers Conference, 2007
    Co-Authors: Christina Lim, Ampalavanapillai Nirmalathas, Ka-lun Lee, Dalma Novak, Rod Waterhouse
    Abstract:

    We propose an Optical Interface incorporating an arrayed waveguide grating (AWG) that simultaneously reduces intermodulation distortion (IMD) and multiplexes DWDM fiber-radio channels while supporting multiple baseband transmission in a heterogeneous access environment.

  • Characterization of Multi-Functional Optical Interface for Multi-Channel Fiber-Radio Transmission in Heterogeneous Access Networks
    LEOS 2007 - IEEE Lasers and Electro-Optics Society Annual Meeting Conference Proceedings, 2007
    Co-Authors: Christina Lim, Ampalavanapillai Nirmalathas, Ka-lun Lee, Dalma Novak, Rod Waterhouse
    Abstract:

    Millimeter-wave (mm-wave) fixed wireless access with Optical transport is able to provide future ultra- broadband connectivity. Optical single sideband with carrier (OSSB+C) modulation has been shown to overcome dispersion for signal transport in such systems while the Optical spectral usage of OSSB+C signals can be improved by interleaving the mm-wave modulated Optical signals. The merging of fiber- radio applications with other access networks has also been demonstrated, leading to a transparent heterogeneous access architecture. In a multiple radio environment the performance of the fiber-radio system is severely limited by the nonlinearity of the Optical frontend, therefore improving its linearity is essential in such applications. Recently we proposed and experimentally demonstrated an Optical Interface based on arrayed-waveguide-gratings (AWGs) that supports multiple dense-WDM (DWDM) Optical fiber-radio channels with the capability to reduce intermodulation distortion (IMD), multiplex multiple wavelength-interleaved DWDM channels and support simultaneous baseband data transport in a heterogeneous environment . In this paper we extend this work to encompass a detailed characterization of the proposed Interface and investigate the trade-offs using simulations.

  • Investigation of Performance Enhancement of WDM Optical Interfaces for Millimeter-Wave Fiber-Radio Networks
    IEEE Photonics Technology Letters, 2007
    Co-Authors: Masuduzzaman Bakaul, Christina Lim, Ampalavanapillai Nirmalathas, Dalma Novak, Rod Waterhouse
    Abstract:

    A modified wavelength-division-multiplexed Optical Interface with the capability to enable Optical-add-drop-multiplexing functionality as well as to deliver an uplink Optical carrier to the base stations in a millimeter-wave fiber-radio system, is investigated and an optimal configuration demonstrated. The incorporation of the modification significantly enhances the performance of both uplink and downlink transmission

  • Modified WDM Optical Interface for performance enhancement of millimetre-wave fibre-radio networks
    ACOFT AOS 2006 - Australian Conference on Optical Fibre Technology Australian Optical Society, 2006
    Co-Authors: Masuduzzaman Bakaul, Christina Lim, Ampalavanapillai Nirmalathas, Dalma Novak, Rod Waterhouse
    Abstract:

    A modified WDM Optical Interface with the capability to enable OADM functionality as well as delivering uplink Optical carrier to the base stations of millimeter-wave fibre- radio systems is proposed and demonstrated. The incorporation of the modification enhances the performance of both uplink and downlink transmission significantly.

Ampalavanapillai Nirmalathas - One of the best experts on this subject based on the ideXlab platform.

  • Multifunctional Optical Interface for Fiber-Radio Systems in Heterogeneous Access Networks
    Journal of Lightwave Technology, 2008
    Co-Authors: Christina Lim, Ampalavanapillai Nirmalathas, Ka-lun Lee, Dalma Novak, Rod Waterhouse
    Abstract:

    In this paper, we investigate through simulation a proposed multi-functional Optical Interface incorporating an arrayed waveguide grating (AWG) that multiplexes multiple wavelength-interleaved dense-wavelength-division-multiplexed (DWDM) Optical RF channels while simultaneously reducing intermodulation distortion (IMD) in fiber-radio systems incorporating Optical single sideband with carrier (OSSB+C) modulation. The proposed Optical Interface is also able to simultaneously support multiple baseband transmission in an integrated wireless/wired heterogeneous access environment. We derive an analytical model and present a detailed analysis of the proposed Interface to establish the viability of its operation and quantify performance limitations. Our results show that the proposed scheme is not dependent on the inherent characteristics of the Optical carrier and a maximum IMD suppression of >9 dB can be achieved. The proposed Interface was also investigated via simulation for a larger number of DWDM channels to establish the viability and subsequently quantify the overall performance of a heterogeneous millimeter-wave fiber-radio system with other wired-access infrastructure.

  • Optical Interface for IMD Reduction in Fiber-Radio Systems with Simultaneous Baseband Transmission for Heterogeneous Access Networks
    OFC NFOEC 2007 - 2007 Conference on Optical Fiber Communication and the National Fiber Optic Engineers Conference, 2007
    Co-Authors: Christina Lim, Ampalavanapillai Nirmalathas, Ka-lun Lee, Dalma Novak, Rod Waterhouse
    Abstract:

    We propose an Optical Interface incorporating an arrayed waveguide grating (AWG) that simultaneously reduces intermodulation distortion (IMD) and multiplexes DWDM fiber-radio channels while supporting multiple baseband transmission in a heterogeneous access environment.

  • Characterization of Multi-Functional Optical Interface for Multi-Channel Fiber-Radio Transmission in Heterogeneous Access Networks
    LEOS 2007 - IEEE Lasers and Electro-Optics Society Annual Meeting Conference Proceedings, 2007
    Co-Authors: Christina Lim, Ampalavanapillai Nirmalathas, Ka-lun Lee, Dalma Novak, Rod Waterhouse
    Abstract:

    Millimeter-wave (mm-wave) fixed wireless access with Optical transport is able to provide future ultra- broadband connectivity. Optical single sideband with carrier (OSSB+C) modulation has been shown to overcome dispersion for signal transport in such systems while the Optical spectral usage of OSSB+C signals can be improved by interleaving the mm-wave modulated Optical signals. The merging of fiber- radio applications with other access networks has also been demonstrated, leading to a transparent heterogeneous access architecture. In a multiple radio environment the performance of the fiber-radio system is severely limited by the nonlinearity of the Optical frontend, therefore improving its linearity is essential in such applications. Recently we proposed and experimentally demonstrated an Optical Interface based on arrayed-waveguide-gratings (AWGs) that supports multiple dense-WDM (DWDM) Optical fiber-radio channels with the capability to reduce intermodulation distortion (IMD), multiplex multiple wavelength-interleaved DWDM channels and support simultaneous baseband data transport in a heterogeneous environment . In this paper we extend this work to encompass a detailed characterization of the proposed Interface and investigate the trade-offs using simulations.

  • Investigation of Performance Enhancement of WDM Optical Interfaces for Millimeter-Wave Fiber-Radio Networks
    IEEE Photonics Technology Letters, 2007
    Co-Authors: Masuduzzaman Bakaul, Christina Lim, Ampalavanapillai Nirmalathas, Dalma Novak, Rod Waterhouse
    Abstract:

    A modified wavelength-division-multiplexed Optical Interface with the capability to enable Optical-add-drop-multiplexing functionality as well as to deliver an uplink Optical carrier to the base stations in a millimeter-wave fiber-radio system, is investigated and an optimal configuration demonstrated. The incorporation of the modification significantly enhances the performance of both uplink and downlink transmission

  • Modified WDM Optical Interface for performance enhancement of millimetre-wave fibre-radio networks
    ACOFT AOS 2006 - Australian Conference on Optical Fibre Technology Australian Optical Society, 2006
    Co-Authors: Masuduzzaman Bakaul, Christina Lim, Ampalavanapillai Nirmalathas, Dalma Novak, Rod Waterhouse
    Abstract:

    A modified WDM Optical Interface with the capability to enable OADM functionality as well as delivering uplink Optical carrier to the base stations of millimeter-wave fibre- radio systems is proposed and demonstrated. The incorporation of the modification enhances the performance of both uplink and downlink transmission significantly.

Hongda Chen - One of the best experts on this subject based on the ideXlab platform.

  • A four-port vertical-coupling Optical Interface based on two-dimensional grating coupler
    Optoelectronic Devices and Integration VI, 2016
    Co-Authors: Zan Zhang, Zanyun Zhang, Beiju Huang, Chuantong Cheng, Tianxi Gao, Hu Xiaochuan, Lin Zhang, Hongda Chen
    Abstract:

    In this work, a fiber-to-chip Optical Interface with four output ports is proposed. External lights irradiate vertically from single mode fiber to the center of Optical Interface can be coupled into silicon photonic chips and split into four siliconon- insulator (SOI) waveguides. If the light is circular polarized, the power of light will be equally split into four ports. Meanwhile, all lights travel in the four channel will be converted into TE polarization. The Optical Interface is based on a two-dimensional grating coupler with carefully designed duty cycle and period. Simulation results show that the coupling efficiency of each port can reach 11.6% so that the total coupling efficiency of the Interface is 46.4%. And Lights coupled into four waveguides are all converted into TE polarization. Further, the Optical Interface has a simple grating structure allowing for easy fabrication.

  • Integrated silicon photonic interconnect with surface-normal Optical Interface
    Optics Communications, 2016
    Co-Authors: Zanyun Zhang, Zan Zhang, Beiju Huang, Chuantong Cheng, Liu Hongwei, Hongda Chen
    Abstract:

    Abstract An integrated silicon photonic interconnect with surface-normal Optical Interface is demonstrated by connecting a bidirectional grating based E-O modulator and a germanium waveguide photodetector. To investigate this photonic interconnect, both static and dynamic performance of the discrete devices are characterized respectively. Based on the characterization work, data transmission experiment is carried out for the photonic interconnect. Eye diagram results indicate the photonic interconnect can operate up to 7 Gb/s.

  • Misalignment-Tolerant Silicon Optical Modulator With Surface-Normal Optical Interface
    IEEE Photonics Technology Letters, 2015
    Co-Authors: Zanyun Zhang, Zan Zhang, Beiju Huang, Liu Hongwei, Hongda Chen
    Abstract:

    Compared with the performance evolution of silicon Optical modulators, photonic packaging problem deserves more attention as a big obstacle of commercial applications. Edge couplers only have submicron-misalignment tolerance, while conventional grating couplers need angle polishing in fiber packaging. To achieve low-cost fiber packaging, a strong misalignment-tolerant Optical modulator is proposed and demonstrated with surface normal Optical Interface. Benefit from the particular characteristics of the bidirectional grating structure, the silicon Optical modulator can operate under ±2- $\mu \text{m}$ fiber misalignment with clear open eyes.

  • A WDM silicon photonic transmitter based on Mach-Zehnder modulator with surface-normal Optical Interface
    2015 IEEE 12th International Conference on Group IV Photonics (GFP), 2015
    Co-Authors: Zan Zhang, Zanyun Zhang, Beiju Huang, Chuantong Chen, Xurui Mao, Sijie Liu, Hongda Chen
    Abstract:

    We present a 4 × 12.5 Gb/s WDM silicon photonic transmitter based on Mach-Zehnder modulators with surface-normal Optical Interface which ensure high misalignment-tolerance. Low voltage operation is achieved using 2.5 V differential driving signal.

Rod Waterhouse - One of the best experts on this subject based on the ideXlab platform.

  • Multifunctional Optical Interface for Fiber-Radio Systems in Heterogeneous Access Networks
    Journal of Lightwave Technology, 2008
    Co-Authors: Christina Lim, Ampalavanapillai Nirmalathas, Ka-lun Lee, Dalma Novak, Rod Waterhouse
    Abstract:

    In this paper, we investigate through simulation a proposed multi-functional Optical Interface incorporating an arrayed waveguide grating (AWG) that multiplexes multiple wavelength-interleaved dense-wavelength-division-multiplexed (DWDM) Optical RF channels while simultaneously reducing intermodulation distortion (IMD) in fiber-radio systems incorporating Optical single sideband with carrier (OSSB+C) modulation. The proposed Optical Interface is also able to simultaneously support multiple baseband transmission in an integrated wireless/wired heterogeneous access environment. We derive an analytical model and present a detailed analysis of the proposed Interface to establish the viability of its operation and quantify performance limitations. Our results show that the proposed scheme is not dependent on the inherent characteristics of the Optical carrier and a maximum IMD suppression of >9 dB can be achieved. The proposed Interface was also investigated via simulation for a larger number of DWDM channels to establish the viability and subsequently quantify the overall performance of a heterogeneous millimeter-wave fiber-radio system with other wired-access infrastructure.

  • Optical Interface for IMD Reduction in Fiber-Radio Systems with Simultaneous Baseband Transmission for Heterogeneous Access Networks
    OFC NFOEC 2007 - 2007 Conference on Optical Fiber Communication and the National Fiber Optic Engineers Conference, 2007
    Co-Authors: Christina Lim, Ampalavanapillai Nirmalathas, Ka-lun Lee, Dalma Novak, Rod Waterhouse
    Abstract:

    We propose an Optical Interface incorporating an arrayed waveguide grating (AWG) that simultaneously reduces intermodulation distortion (IMD) and multiplexes DWDM fiber-radio channels while supporting multiple baseband transmission in a heterogeneous access environment.

  • Characterization of Multi-Functional Optical Interface for Multi-Channel Fiber-Radio Transmission in Heterogeneous Access Networks
    LEOS 2007 - IEEE Lasers and Electro-Optics Society Annual Meeting Conference Proceedings, 2007
    Co-Authors: Christina Lim, Ampalavanapillai Nirmalathas, Ka-lun Lee, Dalma Novak, Rod Waterhouse
    Abstract:

    Millimeter-wave (mm-wave) fixed wireless access with Optical transport is able to provide future ultra- broadband connectivity. Optical single sideband with carrier (OSSB+C) modulation has been shown to overcome dispersion for signal transport in such systems while the Optical spectral usage of OSSB+C signals can be improved by interleaving the mm-wave modulated Optical signals. The merging of fiber- radio applications with other access networks has also been demonstrated, leading to a transparent heterogeneous access architecture. In a multiple radio environment the performance of the fiber-radio system is severely limited by the nonlinearity of the Optical frontend, therefore improving its linearity is essential in such applications. Recently we proposed and experimentally demonstrated an Optical Interface based on arrayed-waveguide-gratings (AWGs) that supports multiple dense-WDM (DWDM) Optical fiber-radio channels with the capability to reduce intermodulation distortion (IMD), multiplex multiple wavelength-interleaved DWDM channels and support simultaneous baseband data transport in a heterogeneous environment . In this paper we extend this work to encompass a detailed characterization of the proposed Interface and investigate the trade-offs using simulations.

  • Investigation of Performance Enhancement of WDM Optical Interfaces for Millimeter-Wave Fiber-Radio Networks
    IEEE Photonics Technology Letters, 2007
    Co-Authors: Masuduzzaman Bakaul, Christina Lim, Ampalavanapillai Nirmalathas, Dalma Novak, Rod Waterhouse
    Abstract:

    A modified wavelength-division-multiplexed Optical Interface with the capability to enable Optical-add-drop-multiplexing functionality as well as to deliver an uplink Optical carrier to the base stations in a millimeter-wave fiber-radio system, is investigated and an optimal configuration demonstrated. The incorporation of the modification significantly enhances the performance of both uplink and downlink transmission

  • Modified WDM Optical Interface for performance enhancement of millimetre-wave fibre-radio networks
    ACOFT AOS 2006 - Australian Conference on Optical Fibre Technology Australian Optical Society, 2006
    Co-Authors: Masuduzzaman Bakaul, Christina Lim, Ampalavanapillai Nirmalathas, Dalma Novak, Rod Waterhouse
    Abstract:

    A modified WDM Optical Interface with the capability to enable OADM functionality as well as delivering uplink Optical carrier to the base stations of millimeter-wave fibre- radio systems is proposed and demonstrated. The incorporation of the modification enhances the performance of both uplink and downlink transmission significantly.

Masuduzzaman Bakaul - One of the best experts on this subject based on the ideXlab platform.