2.5 V passive CMOS mixer with 20 dBm P1 dB compression (2008)
De Backer, E, Bauwelinck, J, Melange, C, Matei, E, Ossieur, P, Qiu, X, ...
A passive CMOS downconversion mixer with LO buffer is presented in 0.25 mu m SiGe BiCMOS using a 2.5 V supply. With a 60 MHz RF signal input, measurements show that the conversion loss is 2.9 dB, the...
Embedded ranging system in ISM band (2008)
Yin, X, Bauwelinck, J, Torfs, G, Demuytere, P, Vandewege, J, Tubbax, H, ...
A new embedded ranging system in the ISM band is described. The proposed indoor ranging system combines the advantages of both broadband and narrowband signals to achieve high ranging accuracy in the...
High extinction switching of SOAs for in-band crosstalk reduction in PON (2008)
Antony, C, Talli, G, Townsend, P, Bauwelinck, J, Smith, D, Lealman, I
Burst-mode operation in next-generation large-split, long-reach 10 Gbit/s passive optical networks (PONs) poses challenging requirements on optical network unit (ONU) design. One critical requirement...
Chen, W, Bauwelinck, J, Ossieur, P, Qiu, X, Vandewege, J
This paper describes a digitally controlled on-chip monotonic Reference Current Generator (RCG) with 8-bit resolution and a LSB (Least Significant Bit) current as low as 100 nA. It was designed as a...
2.5 V 35 dBm IIP3 75 MHz sixth-order active RC filter (2008)
De Backer, E, Bauwelinck, J, Melange, C, Matei, E, Ossieur, P, Qiu, X, ...
A differential sixth-order Butterworth Sallen-Key lowpass filter in 0.25 mu m SiGe BiCMOS, using a 2.5 V supply, is presented. The filter has a 75 MHz cutoff frequency and an attenuation of more than...
Baekelandt, B, Melange, C, Bauwelinck, J, Ossieur, P, De Ridder, T, Qiu, X, ...
We present an analysis of linear in-band crosstalk in high split long reach wavelength/time-division-multiplexing passive optical networks (WDM-TDM PONs). In this letter, a mathematical model is...
High dynamic range 60 MHz powerline front-end IC (2008)
Bauwelinck, J, De Backer, E, Melange, C, Matei, E, Ossieur, P, Qiu, X, ...
Presented for the first time, is a novel broadband powerline front-end realised in 0.25 mu m SiGe BiCMOS with superior performance. The frequency range of the transmitter (TX) and the direct...
BiCMOS variable gain transimpedance amplifier for automotive applications (2008)
De Ridder, T, Ossieur, P, Yin, X, Baekelandt, B, Melange, C, Bauwelinck, J, ...
A new BiCMOS variable gain transimpedance amplifier with a large area integrated photodiode for automotive applications is presented. Through careful control of the input pole position and the...
An improved current-mode squarer/divider circuit for automotive applications (2008)
Yin, X, Ossieur, P, De Ridder, T, Bauwelinck, J, Qiu, X, Vandewege, J
A current-mode squarer/divider circuit with a novel translinear cell is presented for automotive applications. The proposed circuit technique increases the accuracy of the squarer/divider function...
Circuit provides low-cost QAM mapping and translation (2007)
Demuytere, P, Mélange, C, Matei, E, De Backer, E, Bauwelinck, J, Vandewege, J
This Design Idea presents an efficient way to do QAM (quadrature-amplitude-modulation) mapping and translation into two’s-complementvalues with only two inverters and no look-up tables.
Circuit provides low-cost QAM mapping and translation (2007)
Demuytere, P, Melange, C, Matei, E, De Backer, E, Bauwelinck, J, Vandewege, J
1.25 Gbit/s ITU-T G.984.2 burst-mode transimpedance amplifier without reset pins (2007)
Ossieur, P, De Ridder, T, Bauwelinck, J, De Backer, E, Gillis, J, Qiu, X, ...
A DC-coupled burst-mode transimpedance amplifier including fast automatic gain control is presented. By employing common-mode level signalling, a reset signal is provided without adding additional...
Chen, W, Bauwelinck, J, Ossieur, P, Qiu, X, Vandewege, J
This paper describes a current-steering Digital-to-Analog Converter (IDAC) architecture with a novel switching scheme, designed for GPON Burst Mode Laser Drivers (BMLD) and realized in a 0.35 mu m...
Simulations and experiments on the effective optical gain of FEC in a GPON uplink (2007)
Yi, Y, Verschuere, S, Lou, Z, Ossieur, P, Bauwelinck, J, Qiu, X, ...
This letter studies the effective optical gain of Reed-Solomon (RS) forward-error correction (FEC) in a burst-mode gigabit passive optical network (GPON) uplink. Numerical simulations are made of the...
Nonintrusive fiber monitoring of TDM optical networks (2007)
De Mulder, B, Chen, W, Bauwelinck, J, Vandewege, J, Qiu, X
This paper introduces a new embedded nonintrusive fiber-monitoring technique for time-division-multiplexing optical networks. It allows an optical transmitter to characterize the fiber plant from...
Chen, W, De Mulder, B, Vandewege, J, Qiu, X, Bauwelinck, J, Baekelandt, B
A low cost embedded OTDR method is presented for monitoring the fiber plant of TDM optical networks without extra optical components nor performance penalty. It localizes abrupt changes in link...
Analog front-end ASIC requirements for a FDM broadband powerline system enabling co-existence (2007)
Bauwelinck, J, De Backer, E, Mélange, C, Qiu, X, Vandewege, J
This paper presents a feasible set of analog ASIC requirements optimized to achieve co-existence in a broadband Power Line Communications (PLC) system based on Frequency Division Multiplexing (FDM)....
Low-cost non-intrusive fiber monitoring in a PON last drop (2007)
Vandewege, J, Qiu, X, Chen, W, De Mulder, B, Bauwelinck, J, Baekelandt, B
Powerline communication system with alternative technology based on new modulation schemes (2007)
Rao, S, Horvath, S, Bauwelinck, J, Ehre, A, Picchi, C
Powerline communication (PLC) is one of the alternate access and in-house technologies to deliver broadband services. Since the powerline infrastructure is ubiquitously deployed in major parts of the...
Impact of crosstalk on multi-wavelength high split PON networks (2007)
Baekelandt, B, Mélange, C, Ossieur, P, Bauwelinck, J, De Ridder, T, Qiu, X, ...
Study on a next generation 10 Gb/s long reach DWDM passive optical network (abstract (2007)
Mélange, C, Baekelandt, B, Bauwelinck, J, Qiu, X, Vandewege, J
Analog front-end ASIC requirements for a FDM broadband powerline system enabling co-existence (2007)
Bauwelinck, J, De Backer, E, Melange, C, Qiu, X, Vandewege, J, Thornton, C, ...
This paper presents a feasible set of analog ASIC requirements optimized to achieve co-existence in a broadband Power Line Communications (PLC) system based on Frequency Division Multiplexing (FDM)....
High-speed active-input cascode current mirror (2006)
Bauwelinck, J, Ossieur, P, Qiu, X, Vandewege, J
A high-speed active-input cascode current mirror is presented. The proposed configuration combines a high output impedance with the high-frequency performance of a source- or emitter-driven...
A 200 MHz 12-bit current-steering DAC in 0.35 µm CMOS (2006)
De Backer, E, Bauwelinck, J, Qiu, X, Vandewege, J
In this paper a 12 b 200 MHz digital-to-analog (D/A) converter integrated in a digital 0.35µm CMOS technology is presented. The 12 b DAC is based on a current steering double segmented 6+2+4...
Chen, W, Bauwelinck, J, Ossieur, P, Qiu, X, Vandewege, J
This paper describes a digitally controlled on-chip monotonic reference current generator with 8-bit resolution and a LSB (Least Significant Bit) current as low as 100 nA. It was designed as a...
High performance burst-mode upstream transmission for next generation PONs (invited paper) (2006)
Qiu, X, Yi, Y, Ossieur, P, Verschuere, S, Verhulst, D, De Mulder, B, ...
This paper presents the effective optical gain achieved with FEC in 1.25 Gbit/s GPON uplink yielding - 36 dBm burst-mode receiver sensitivity and 25 dB dynamic range. A low cost embedded fiber...
A fast and intelligent automatic power control for a GPON burst-mode optical transmitter (2005)
Verhulst, D, Bauwelinck, J, Martens, Y, Qiu, X, Vandewege, J
A generic 1.25-Gb/s burst-mode optical transmitter with an intelligent automatic power control has been developed and tested successfully. The chip quickly adjusts the optical power during...
Bauwelinck, J, Chen, W, Verhulst, D, Martens, Y, Ossieur, P, Qiu, X, ...
An innovative burst-mode laser transmitter (BM-TX) is presented for gigabit-capable passive optical network (GPON) upstream transmission at 1.25 Gb/s. The laser bias and modulation current each can...
A 1.25-Gb/s burst-mode receiver for GPON applications (2005)
Ossieur, P, Verhulst, D, Martens, Y, Chen, W, Bauwelinck, J, Qiu, X, ...
This paper presents a 1.25-Gb/s burst-mode receiver (BMRx) for upstream transmission over gigabit passive optical networks (G-PONs). The dc-coupled receiver uses a unique arrangement of three...
A novel automotive VCSEL driver with feed-forward, bias and modulation current control (2005)
Yin, X, Verhulst, D, Bauwelinck, J, De Ridder, T, Ossieur, P, Qiu, X, ...
We propose a novel 50 Mb/s optical transmitter fabricated in 0.6 µm BiCMOS process for automotive applications. The proposed VCSEL driver chip was designed to operate from a single supply voltage...
An experimental set-up for the feasibility study of embedded optical fiber monitoring (2005)
Chen, W, De Mulder, B, Vandewege, J, Qiu, X, Bauwelinck, J, Van Renterghem, K
This paper introduces a new embedded optical fiber monitoring (OFM) technique to characterize the channel response of a passive optical network (PON). Embedded OFM aims to integrate a cost-effective...
Upstream experiments on the gigabit PON physical medium layer (2005)
Verhulst, D, Yi, Y, Qiu, X, Verschuere, S, Lou, Z, Ossieur, P, ...
First time demonstration of a high performance 1.25 Gbit/s GPON burst-mode uplink exceeding the ITU-T G.984 Recommendation and supporting Power Leveling Mechanism (PLM). A burst-mode receiver...