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Hyo-hoon Park - One of the best experts on this subject based on the ideXlab platform.

  • 10 Gbps/ch Full-Duplex Optical Link Using a Single-Fiber Channel for Signal Transmission
    IEEE Photonics Technology Letters, 2014
    Co-Authors: Jamshid Sangirov, Ikechi A. Ukaegbu, Hyo-hoon Park
    Abstract:

    A 10 Gbps/ch full-duplex (simultaneous bidirectional) Optical Link utilizing two Optical subassembly (OSA) transceiver (TRx) modules and two wavelengths, 850 and 1060 nm, for sending and receiving Optical signals through a single fiber channel in a fiber array is demonstrated. Each of the OSA TRx modules consists of transmitter/receiver chips, Optical fibers embedded in a V-grooved silicon substrate, two 45 ° mirrors formed in fibers, and three silicon Optical benches for mounting vertical-cavity surface-emitting lasers, photodiodes (PDs), and monitoring PDs. Mirror-1 in the fiber is coated with a wavelength-filtering layer to reflect transmitted light and pass through received light. Mirror-2 deflects received light to the PD. Two OSA TRx modules were applied in an end-to-end quad small form-factor pluggable Optical Link for 40-Gbps operation. This Optical Link showed good performance with clear eye-diagrams and a BER of at

  • Optical Link between FPGA microprocessors using a fiber-embedded rigid PCB
    Optoelectronic Interconnects and Component Integration IX, 2010
    Co-Authors: Dong-min Im, Jae-bong Choi, Hyo-hoon Park
    Abstract:

    ABSTRACT A platform for video data Link between FPGA microprocessors based on an Optical printed-circuit board (OPCB) was implemented. Optimized compact size of 9.5 x 10.5 x 1.0 mm 3 Tx/Rx modules were prepared and applied for the Optical Link of the platform. A low insertion loss of 0.42 dB and stable Optical fiber-layer integrated with connectors was embedded in FR4 board for the implementation of the OPCB. The platform shows that embedding the Optical fiber-layer with connectors can improve the degree of freedom for packaging as well as Optical and physical characteristics. Real time video image from a charge-coupled-device (CCD) camera was successfully transmitted to a monitor through Optical Link between FPGA microprocessors of the platform. The captured image was successfully saved in a static random access memory (SRAM) and clearly shown on the monitor. This study shows that chip-to-chip Optical interconnection technology based on fiber-layer embedded OPCB can be ap plied for the CPU-to-CPU/memory Optical interconnections. Keywords: Platform for video data Link, Optical Link, FPGA microprocessor, Optical printed-circuit board (OPCB), Optical fiber-layer integrated with connectors.

  • Optical Link by Using Optical Wiring Method for Reducing EMI
    Smart Structures Devices and Systems IV, 2008
    Co-Authors: Jong-hwa Kwon, Myung Yung Jeong, Sung-woong Choi, Alexander Bondarik, Hyo-hoon Park
    Abstract:

    A practical Optical Link system was prepared with a transmitter (Tx) and receiver (Rx) for reducing EMI (electromagnetic interference). The Optical TRx module consisted of a metal Optical bench, a module printed circuit board (PCB), a driver/receiver IC, a VCSEL/PD array, and an Optical Link block composed of plastic Optical fiber (POF). For the Optical interconnection between the light-sources and detectors, an Optical wiring method has been proposed to enable easy assembly. The key benefit of fiber optic Link is the absence of electromagnetic interference (EMI) noise creation and susceptibility. This paper provides a method for Optical interconnection between an Optical Tx and an Optical Rx, comprising the following steps: (ⅰ) forming a light source device, an Optical detection device, and an Optical transmission unit on a substrate (metal Optical bench (MOB)); (ⅱ) preparing a flexible Optical transmission-connection medium (Optical wiring Link) to Optically connect the light source device formed on the substrate with the Optical detection device; and (ⅲ) directly connecting one end of the surface-finished Optical transmission connection medium with the light source device and the other end with the Optical detection device. Electronic interconnections have uniquely electronic problems such as EMI, shorting, and ground loops. Since these problems only arise during transduction (electronics-to-optics or opticsto- electronics), the purely Optical part and Optical Link(interconnection) is free of these problems. 1 An Optical Link system constructed with TRx modules was fabricated and the Optical characteristics about data Links and EMI levels were measured. The results clearly demonstrate that the use of an Optical wiring method can provide robust and cost-effective assembly for reducing EMI of inter-chip interconnect. We successfully achieved a 4.5 Gb/s data transmission rate without EMI problems. (Less)

  • Chip-to-chip Optical Link by using Optical wiring method
    Photonics: Design Technology and Packaging III, 2007
    Co-Authors: Myung Yung Jeong, Hyo-hoon Park
    Abstract:

    A practical Optical Link system was prepared with a transmitter (Tx) and receiver (Rx). The Optical TRx module consisted of a metal Optical bench, a module printed circuit board (PCB), a driver/receiver IC, a VCSEL/PD array, and an Optical Link block composed of plastic Optical fiber (POF). For the Optical interconnection between the light-sources and detectors, an Optical wiring method has been proposed to enable easy assembly. This paper provides a method for Optical interconnection between an Optical Tx and an Optical Rx, comprising the following steps: (a) forming a light source device, an Optical detection device, and an Optical transmission unit on a substrate (metal Optical bench (MOB)); (b) preparing a flexible Optical transmission-connection medium (Optical wiring Link) to Optically connect the light source device formed on the substrate with the Optical detection device; and (c) directly connecting one end of the surface-finished Optical transmission connection medium with the light source device and the other end with the Optical detection device. A chip-to-chip Optical Link system constructed with TRx modules was fabricated and the Optical characteristics were measured. The results clearly demonstrate that the use of an Optical wiring method can provide robust and cost-effective assembly for vertical-cavity surface-emitting lasers (VCSELs) and photodiodes (PDs). We successfully achieved a 5 Gb/s data transmission rate with this Optical Link.

  • Chip-to-Chip Optical Link System Using an Optical Wiring Method
    IEEE Photonics Technology Letters, 2007
    Co-Authors: Kyo Seung Chung, Hyo-hoon Park
    Abstract:

    A practical Optical Link system was prepared with a transmitter (Tx) and receiver (Rx). The Optical TRx module consisted of a metal Optical bench, a module printed circuit board, a driver/receiver integrated circuit, a vertical-cavity surface-emitting laser/photodiode array, and an Optical Link block composed of plastic Optical fiber (POF). For the Optical interconnection between the light-sources and detectors, an Optical wiring method has been proposed to enable easy assembly. The Optical wiring Link was constructed with POFs mounted on a v-grooved polymethylmethacrylate bench. The data transfer measurements were presented successfully.

Clint L. Schow - One of the best experts on this subject based on the ideXlab platform.

  • OFC - Low power CMOS-driven 1060 nm multimode Optical Link
    Optical Fiber Communication Conference, 2014
    Co-Authors: Jean Benoit Héroux, Clint L. Schow, A. V. Rylyakov, Tomofumi Kise, Masaki Funabashi, Toyohiro Aoki, Shigeru Nakagawa
    Abstract:

    A high speed, low power 1060nm Optical Link with 90-nm CMOS chips is demonstrated using a VCSEL bias as low as 2 mA. A 4.9 pJ/bit efficiency is obtained at 20 Gbps.

  • 30-Gb/s 90-nm CMOS-driven equalized multimode Optical Link.
    Optics Express, 2013
    Co-Authors: Brendan H. Hamel-bissell, Jonathan E. Proesel, D. M. Kuchta, A. V. Rylyakov, Clint L. Schow
    Abstract:

    Abstract: We report an 850-nm vertical cavity surface emitting laser (VCSEL)-based Optical Link that achieves a new record in speed. The laser driver and receiver ICs are fabricated in standard 90-nm bulk CMOS, and the optoelectronic devices are commercial components. Operation at 30 Gb/s with a bit-error rate < 10−12 is achieved, representing to the authors’ knowledge the highest speed reported to date for a CMOS-based full Optical Link. Transmitter feed-forward equalization is shown to improve maximum data rate from 25 to 30 Gb/s, timing margin by 17% at 23.5 Gb/s, and receiver sensitivity by 4 dB at 23.5 Gb/s.

  • 35-Gb/s VCSEL-Based Optical Link using 32-nm SOI CMOS circuits
    2013 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC NFOEC), 2013
    Co-Authors: Jonathan E. Proesel, Christian W. Baks, Clint L. Schow
    Abstract:

    A VCSEL-based multimode fiber Optical Link using 32nm SOI CMOS circuits is demonstrated. Record Optical Link power efficiencies of 1pJ/bit at 25Gb/s and 2.7pJ/bit at 35Gb/s are achieved.

  • a 56 1gb s nrz modulated 850nm vcsel based Optical Link
    Optical Fiber Communication Conference, 2013
    Co-Authors: D. M. Kuchta, Christian W. Baks, Clint L. Schow, A. V. Rylyakov, J. E. Proesel, F. E. Doany, C. Kocot, Luke A Graham, B H Hamelbissell, Ralph H Johnson
    Abstract:

    We report a directly modulated 850nm VCSEL-based Optical Link operating at 56.1Gb/s (BER <; 1E-12). This is the highest modulation rate for a VCSEL-based Link of any wavelength. An open eye is obtained at 60Gb/s.

  • a 55gb s directly modulated 850nm vcsel based Optical Link
    IEEE Photonics Conference, 2012
    Co-Authors: D. M. Kuchta, Jonathan E. Proesel, Christian W. Baks, Clint L. Schow, A. V. Rylyakov, C. Kocot, G. Landry, Luke A Graham, Ralph H Johnson, E. Shaw
    Abstract:

    We report a directly modulated 850nm VCSEL-based Optical Link operating at 55Gb/s. This is the highest modulation rate for VCSEL-based Link of any wavelength.

A. V. Rylyakov - One of the best experts on this subject based on the ideXlab platform.

  • Low power CMOS-driven 1060 nm multimode Optical Link
    OFC 2014, 2014
    Co-Authors: Jean Benoit Héroux, A. V. Rylyakov, Tomofumi Kise, Masaki Funabashi, Toyohiro Aoki, Clint Schow, Shigeru Nakagawa
    Abstract:

    A high speed, low power 1060nm Optical Link with 90-nm CMOS chips is demonstrated using a VCSEL bias as low as 2 mA. A 4.9 pJ/bit efficiency is obtained at 20 Gbps.

  • OFC - Low power CMOS-driven 1060 nm multimode Optical Link
    Optical Fiber Communication Conference, 2014
    Co-Authors: Jean Benoit Héroux, Clint L. Schow, A. V. Rylyakov, Tomofumi Kise, Masaki Funabashi, Toyohiro Aoki, Shigeru Nakagawa
    Abstract:

    A high speed, low power 1060nm Optical Link with 90-nm CMOS chips is demonstrated using a VCSEL bias as low as 2 mA. A 4.9 pJ/bit efficiency is obtained at 20 Gbps.

  • 30-Gb/s 90-nm CMOS-driven equalized multimode Optical Link.
    Optics Express, 2013
    Co-Authors: Brendan H. Hamel-bissell, Jonathan E. Proesel, D. M. Kuchta, A. V. Rylyakov, Clint L. Schow
    Abstract:

    Abstract: We report an 850-nm vertical cavity surface emitting laser (VCSEL)-based Optical Link that achieves a new record in speed. The laser driver and receiver ICs are fabricated in standard 90-nm bulk CMOS, and the optoelectronic devices are commercial components. Operation at 30 Gb/s with a bit-error rate < 10−12 is achieved, representing to the authors’ knowledge the highest speed reported to date for a CMOS-based full Optical Link. Transmitter feed-forward equalization is shown to improve maximum data rate from 25 to 30 Gb/s, timing margin by 17% at 23.5 Gb/s, and receiver sensitivity by 4 dB at 23.5 Gb/s.

  • A 56.1Gb/s NRZ modulated 850nm VCSEL-based Optical Link
    2013 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC NFOEC), 2013
    Co-Authors: D. M. Kuchta, C. L. Schow, A. V. Rylyakov, J. E. Proesel, F. E. Doany, C. Baks, B. H. Hamel-bissell, C. Kocot, L. Graham, R. Johnson
    Abstract:

    We report a directly modulated 850nm VCSEL-based Optical Link operating at 56.1Gb/s (BER

  • a 56 1gb s nrz modulated 850nm vcsel based Optical Link
    Optical Fiber Communication Conference, 2013
    Co-Authors: D. M. Kuchta, Christian W. Baks, Clint L. Schow, A. V. Rylyakov, J. E. Proesel, F. E. Doany, C. Kocot, Luke A Graham, B H Hamelbissell, Ralph H Johnson
    Abstract:

    We report a directly modulated 850nm VCSEL-based Optical Link operating at 56.1Gb/s (BER <; 1E-12). This is the highest modulation rate for a VCSEL-based Link of any wavelength. An open eye is obtained at 60Gb/s.

D. M. Kuchta - One of the best experts on this subject based on the ideXlab platform.

  • 30-Gb/s 90-nm CMOS-driven equalized multimode Optical Link.
    Optics Express, 2013
    Co-Authors: Brendan H. Hamel-bissell, Jonathan E. Proesel, D. M. Kuchta, A. V. Rylyakov, Clint L. Schow
    Abstract:

    Abstract: We report an 850-nm vertical cavity surface emitting laser (VCSEL)-based Optical Link that achieves a new record in speed. The laser driver and receiver ICs are fabricated in standard 90-nm bulk CMOS, and the optoelectronic devices are commercial components. Operation at 30 Gb/s with a bit-error rate < 10−12 is achieved, representing to the authors’ knowledge the highest speed reported to date for a CMOS-based full Optical Link. Transmitter feed-forward equalization is shown to improve maximum data rate from 25 to 30 Gb/s, timing margin by 17% at 23.5 Gb/s, and receiver sensitivity by 4 dB at 23.5 Gb/s.

  • A 56.1Gb/s NRZ modulated 850nm VCSEL-based Optical Link
    2013 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC NFOEC), 2013
    Co-Authors: D. M. Kuchta, C. L. Schow, A. V. Rylyakov, J. E. Proesel, F. E. Doany, C. Baks, B. H. Hamel-bissell, C. Kocot, L. Graham, R. Johnson
    Abstract:

    We report a directly modulated 850nm VCSEL-based Optical Link operating at 56.1Gb/s (BER

  • a 56 1gb s nrz modulated 850nm vcsel based Optical Link
    Optical Fiber Communication Conference, 2013
    Co-Authors: D. M. Kuchta, Christian W. Baks, Clint L. Schow, A. V. Rylyakov, J. E. Proesel, F. E. Doany, C. Kocot, Luke A Graham, B H Hamelbissell, Ralph H Johnson
    Abstract:

    We report a directly modulated 850nm VCSEL-based Optical Link operating at 56.1Gb/s (BER <; 1E-12). This is the highest modulation rate for a VCSEL-based Link of any wavelength. An open eye is obtained at 60Gb/s.

  • a 55gb s directly modulated 850nm vcsel based Optical Link
    IEEE Photonics Conference, 2012
    Co-Authors: D. M. Kuchta, Jonathan E. Proesel, Christian W. Baks, Clint L. Schow, A. V. Rylyakov, C. Kocot, G. Landry, Luke A Graham, Ralph H Johnson, E. Shaw
    Abstract:

    We report a directly modulated 850nm VCSEL-based Optical Link operating at 55Gb/s. This is the highest modulation rate for VCSEL-based Link of any wavelength.

  • A 40-Gb/s, 850-nm, VCSEL-based full Optical Link
    Optical Fiber Communication Conference, 2012
    Co-Authors: A. V. Rylyakov, Jonathan E. Proesel, Christian W. Baks, Clint L. Schow, D. M. Kuchta, Neinyi Li, K.p. Jackson
    Abstract:

    We report a complete VCSEL Optical Link operating at 40-Gb/s (BER

Shih-yuan Wang - One of the best experts on this subject based on the ideXlab platform.

  • Hot Interconnects - Telecentric Optics for Free-Space Optical Link
    2008 16th IEEE Symposium on High Performance Interconnects, 2008
    Co-Authors: Robert G. Walmsley, Lennie Kiyama, Shih-yuan Wang
    Abstract:

    We describe a telecentric Optical system for free-space multichannel Optical interconnects. The targeted aggregate data rate is 240 Gb/s. We have a unique implementation of telecentric optics and achieved an Optical Link that is simple, robust and modular. The integrity of the Optical Link is not significantly degraded with a >plusmn2 mm translational misalignment between the transmitter and receiver arrays. With this Optical Link, we need only a low bandwidth active servo mechanism to compensate for static tilt and possibly low frequency thermally-driven shift between the transmitter and receiver arrays.

  • Telecentric Optics for Free-Space Optical Link
    2008 16th IEEE Symposium on High Performance Interconnects, 2008
    Co-Authors: Robert Walmsley, Lennie Kiyama, Shih-yuan Wang
    Abstract:

    We describe a telecentric Optical system for free-space multichannel Optical interconnects. The targeted aggregate data rate is 240 Gb/s. We have a unique implementation of telecentric optics and achieved an Optical Link that is simple, robust and modular. The integrity of the Optical Link is not significantly degraded with a >plusmn2 mm translational misalignment between the transmitter and receiver arrays. With this Optical Link, we need only a low bandwidth active servo mechanism to compensate for static tilt and possibly low frequency thermally-driven shift between the transmitter and receiver arrays.