Search Results - "Kwangjoon Kim, Kwangjoon Kim"

Impact of Quadrature Imbalance in Optical Coherent QPSK Receiver by Sun Hyok Chang, Sun Hyok Chang, Hwan Seok Chung, Hwan Seok Chung, Kwangjoon Kim, Kwangjoon Kim

“…In this letter, we present the impact of quadrature imbalance in an optical coherent quadrature phase-shift-keying (QPSK) receiver. Arbitrary conjugate…”
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Coflow scheduling and placement for packet-switched optical datacenter networks by Wang, Lin, Wang, Xinbo, Tornatore, Massimo, Kim, Kwangjoon, Mukherjee, Biswanath

“…Data-parallel computing applications (DPCAs) (e.g., MapReduce, web search, etc.) are driving the need of scalable, low-latency, high-speed, and…”
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A novel bandwidth allocation scheme for OTSS-enabled flex-grid intra-datacenter networks by Wang, Lin, Wang, Xinbo, Tornatore, Massimo, Kim, Kwangjoon, Mukherjee, Biswanath

“…Optical circuit switching networks have been recognized as a promising solution for inter -datacenter networks. However, for intra -datacenter networks, they…”
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Mode- and wavelength-division multiplexed transmission using all-fiber mode multiplexer based on mode selective couplers by Chang, Sun Hyok, Chung, Hwan Seok, Ryf, Roland, Fontaine, Nicolas K, Han, Changyo, Park, Kyung Jun, Kim, Kwangjoon, Lee, Jyung Chan, Lee, Jong Hyun, Kim, Byoung Yoon, Kim, Young Kie

“…We propose all-fiber mode multiplexer composed of two consecutive LP₁₁ mode selective couplers that allows for the multiplexing of LP₀₁ mode and two-fold…”
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Transmission of Multiple HD-TV Signals Over a Wired/Wireless Line Millimeter-Wave Link With 60 GHz by Hwan Seok Chung, Hwan Seok Chung, Sun Hyok Chang, Sun Hyok Chang, Jong Dae Park, Jong Dae Park, Moo-Jung Chu, Moo-Jung Chu, Kwangjoon Kim, Kwangjoon Kim

“…For the first time to our knowledge, we demonstrate a transmission of 37 channels a 64 quadratic-amplitude-modulation (QAM)-coded high-definition television…”
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Enhanced Linear Protection Switching Methods Supporting Dual Node Interconnection in Packet Transport Networks by Kim, Dae-Ub, Ryoo, Jeong-dong, Cheung, Taesik, Song, Jongtae, Kim, Kwangjoon

“…In this paper, we discuss the issues of supporting protection switching in multiple recovery domains (MRDs). In MRDs, dual node interconnection (DNI) between…”
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Effect of IQ Mismatch Compensation in an Optical Coherent OFDM Receiver by Chung, Hwan Seok, Chang, Sun Hyok, Kim, Kwangjoon

“…The performance enhancement using the Gram-Schmidt orthogonalization procedure (GSOP) for compensating transmitter (Tx) and receiver (Rx) in-phase/quadrature…”
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Mitigation of Imperfect Carver-Induced Phase Distortions in a Coherent PM-RZ-QPSK Receiver by Chung, Hwan Seok, Chang, Sun Hyok, Kim, Kwangjoon

“…The impact of phase distortions caused by imperfect return-to-zero (RZ) pulse carving on 112 Gb/s polarization-multiplexed…”
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Grant‐Aware Scheduling Algorithm for VOQ‐Based Input‐Buffered Packet Switches by Han, Kyeong‐Eun, Song, Jongtae, Kim, Dae‐Ub, Youn, JiWook, Park, Chansung, Kim, Kwangjoon

“…In this paper, we propose a grant‐aware (GA) scheduling algorithm that can provide higher throughput and lower latency than a conventional dual round‐robin…”
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Optimization of Operating Conditions for 112-Gb/s Polarization-Multiplexed 16-QAM Optical Modulation by Chang, Sun Hyok, Chung, Hwan Seok, Kim, Kwangjoon

“…In this letter, we analyze a 16-ary quadrature amplitude modulation (16-QAM) optical signal generated by applying four-level electrical signals to a single…”
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Suppression of transient phenomena in hybrid Raman/EDF amplifier by Sun Hyok Chang, Sun Hyok Chang, Hee Sang Chung, Hee Sang Chung, Hyun Jae Lee, Hyun Jae Lee, Kwangjoon Kim, Kwangjoon Kim

“…Transient phenomena of hybrid Raman/erbium-doped fiber amplifier (EDFA) upon optical channel add-drop are investigated. The transient responses of surviving…”
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Digital non-data-aided symbol synchronization in optical coherent intradyne reception by Chang, Sun Hyok, Chung, Hwan Seok, Kim, Kwangjoon

“…Digital symbol synchronization of optical binary phase shift keying signals is experimentally demonstrated. Algorithm of timing error feedback is proposed for…”
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Field Trial of 112 Gb/s Dual-Carrier DQPSK Channel Upgrade in Installed 516 km of Fiber Link and ROADM by Chung, Hwan Seok, Chang, Sun Hyok, Lee, Jyung Chan, Shin, Jongyoon, Youn, Ji Wook, Ko, JeSoo, Lee, Joon Ki, Kang, Sae-Kyoung, Huh, Joon Young, Lee, Jong Hyun, Lee, Won Hee, Hyun, Sung Kyu, Kang, Sun Moo, Kim, Kwangjoon

“…A field trial of 100GE signal transmission using dual-carrier differential quadrature phase shift keying (DC-DQPSK) based optical transceiver is demonstrated…”
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A Novel Method to Accurately Predict Color Information of Liquid Crystal Displays With Light Leakage From Black Pixels by Kim, Jong-Man, Kim, Jongbin, Cho, Youngmin, Kim, Kwangjoon, Lee, Seung-Woo

“…This paper proposes a new method to predict color information of liquid crystal displays (LCDs) very accurately. Leaked light from black sub-pixels causes…”
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Reduction of temperature-dependent gain in L-band EDFA using antimony-aluminum codoped silica EDF by Young-Eun Im, Kyunghwan Oh, Sun Hyok Chang, Kwangjoon Kim, DiGiovanni, D.J.

“…We report a novel technique to suppress the temperature-dependent gain (TDG) of an L-band erbium-doped fiber amplifier. The composite optical gain block…”
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A 10-Gb/s CMOS CDR and DEMUX IC With a Quarter-Rate Linear Phase Detector by Byun, S., Lee, J.C., Shim, J.H., Kim, K., Yu, H.-K.

“…This paper presents a 10-Gb/s clock and data recovery (CDR) and demultiplexer IC in a 0.13-mum CMOS process. The CDR uses a new quarter-rate linear phase…”
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On the WDM transmissions using multilevel (M>4) DPSK modulation format by Park, Sang-Gyu, Hong, Ki-Dong, Jang, Youn-Seon, Kim, Kwangjoon

“…The performance of multilevel differential phase-shift-keying modulation formats is investigated. The results include the relationship between the nonlinear…”
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Companding transform based SPM compensation in coherent optical OFDM transmission by Hwan Seok Chung, Sun Hyok Chang, Kwangjoon Kim

“…We demonstrate a mitigation of fiber nonlinearity using μ-law companding transform in coherent optical OFDM transmission. After transmission of 1,040 km over…”
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Impact of 3R wavelength converters on the blocking probability of WDM networks with finite signal impairment threshold by Cho, Yun Hee, Kim, Kwangjoon

“…We consider WDM mesh networks with finite signal impairment threshold (SIT) and estimate the minimum requirement of 3R wavelength converters (3R-WCs) per node…”
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Suppression of thermal wavelength drift in widely tunable DS-DBR laser for fast channel-to-channel switching by Yoo, Sanghwa, Lee, Joon Ki, Kim, Kwangjoon

“…We present a simple and effective method for suppressing thermally induced wavelength drift in a widely tunable digital supermode distributed Bragg reflector…”
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