A novel 50-Gbit/s NRZ-RZ converter with retiming function using InP HEMT technology

Suzuki, Toshimitsu; Kawano, Yukio; Nakasha, Yasuhiro; Takahashi, Tsuyoshi; Makiyama, Kozo; Hirose, Takahisa

doi:10.1109/csics.2005.1531749

Cited by 7 publications

(2 citation statements)

References 8 publications

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“…4. The NRZ-to-RZ converter has a master-slave topology formed by D-latch and AND circuits [10]. The latching operation ensures a wide phase margin between the NRZ data and the clock.…”

Section: Circuit Designmentioning

confidence: 99%

A 12.5-Gb/s Pulse Modulator with 6.5-ps FWHM Using 0.1-μm InP HEMTs for Ultra-Wideband Impulse Radio Communications

Nakasha

Kawano

Suzuki

et al. 2008

2008 IEEE Compound Semiconductor Integrated Circuits Symposium

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We developed an ON/OFF pulse modulator IC using 0.1-μm-gate-length InP HEMTs for ultra-wideband impulse radio (UWB-IR) communications systems. The IC generated extremely short pulses whose full width at half maximum (FWHM) were 6.5 ps. Furthermore, our new circuit architecture that retimes output pulses at both rising and falling edges made the IC robust against timing fluctuations or jitter. The output pulses had very small jitters of 256 fs rms and 1.3 ps p-p and thus had little degradation from intersymbol interference (ISI) when a 2 31 -1 length pseudo random bit stream (PRBS) at a bit rate of 12.5 Gb/s was input. The pulse modulator can be used to construct an ON/OFF keying transmitter based on UWB-IR architecture that sends more than 10 Gb/s of data in the W-band (75-110 GHz) and above.

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“…4. The NRZ-to-RZ converter has a master-slave topology formed by D-latch and AND circuits [10]. The latching operation ensures a wide phase margin between the NRZ data and the clock.…”

Section: Circuit Designmentioning

confidence: 99%

A 12.5-Gb/s Pulse Modulator with 6.5-ps FWHM Using 0.1-μm InP HEMTs for Ultra-Wideband Impulse Radio Communications

Nakasha

Kawano

Suzuki

et al. 2008

2008 IEEE Compound Semiconductor Integrated Circuits Symposium

Self Cite

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“…The NRZ-to-RZ converter is based on a master-slave topology formed of D-latch and AND circuits. 21) Since the circuit architecture is simple and the timing issue between input data and clock signals is not so serious, this type of PG is suitable for pursuing record performance with an immature cutting-edge device technology.…”

Section: Pg Architecture (Type I)mentioning

confidence: 99%

Picosecond Pulse Generators in InP-Based High Electron Mobility Transistor Technology for 10 Gbps Wireless Communication

Nakasha

Kawano

Suzuki

et al. 2010

Jpn. J. Appl. Phys.

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In this paper, we present simple digital-based pulse generators (PGs) that emit short pulses with a full width at half-maximum (FWHM) of only several picoseconds in order to realize millimeter-wave impulse radio (IR) systems that can transmit signals at 10 Gbps and above. There are distinctive advantages of using digital techniques. Scaling devices and reducing parasitic capacitances can enhance performance, which is examined by a transition analysis of the PGs. Secondly, retiming techniques enable the PGs to suppress jitter, which is essential for maintaining transmission quality. Two types of PGs are demonstrated: Type-I PG with advanced 75 nm InP-based high electron mobility transistors (HEMTs) having a cavity structure generated short pulses with a record FWHM of <4.9 ps at 20 Gbps, realizing sub-THz IR systems. Type-II PG with mature 100 nm InP-based HEMTs without the cavity retimed 6.5 ps pulses, resulting in very small jitter of 256 fs. Type-II PG was used to construct an IR transmitter of over 10 Gbps at millimeter-wave frequencies (75–110 GHz).

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Modified 1.28 Tbit/s (32 × 4 × 10 Gbit/s) Absolute Polar Duty Cycle Division Multiplexing-WDM Transmission Over 320 km Standard Single Mode Fiber

Malekmohammadi

2011

Electrical Engineering and Applied Computing

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A novel 50-Gbit/s NRZ-RZ converter with retiming function using InP HEMT technology

Cited by 7 publications

References 8 publications

A 12.5-Gb/s Pulse Modulator with 6.5-ps FWHM Using 0.1-μm InP HEMTs for Ultra-Wideband Impulse Radio Communications

A 12.5-Gb/s Pulse Modulator with 6.5-ps FWHM Using 0.1-μm InP HEMTs for Ultra-Wideband Impulse Radio Communications

Picosecond Pulse Generators in InP-Based High Electron Mobility Transistor Technology for 10 Gbps Wireless Communication

Modified 1.28 Tbit/s (32 × 4 × 10 Gbit/s) Absolute Polar Duty Cycle Division Multiplexing-WDM Transmission Over 320 km Standard Single Mode Fiber

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A novel 50-Gbit/s NRZ-RZ converter with retiming function using InP HEMT technology

Cited by 7 publications

References 8 publications

A 12.5-Gb/s Pulse Modulator with 6.5-ps FWHM Using 0.1-&#956;m InP HEMTs for Ultra-Wideband Impulse Radio Communications

A 12.5-Gb/s Pulse Modulator with 6.5-ps FWHM Using 0.1-&#956;m InP HEMTs for Ultra-Wideband Impulse Radio Communications

Picosecond Pulse Generators in InP-Based High Electron Mobility Transistor Technology for 10 Gbps Wireless Communication

Modified 1.28 Tbit/s (32 × 4 × 10 Gbit/s) Absolute Polar Duty Cycle Division Multiplexing-WDM Transmission Over 320 km Standard Single Mode Fiber

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A 12.5-Gb/s Pulse Modulator with 6.5-ps FWHM Using 0.1-μm InP HEMTs for Ultra-Wideband Impulse Radio Communications

A 12.5-Gb/s Pulse Modulator with 6.5-ps FWHM Using 0.1-μm InP HEMTs for Ultra-Wideband Impulse Radio Communications