TY - JOUR
T1 - High-speed optical DQPSK and FSK modulation using integrated Mach-Zehnder interferometers
AU - Kawanishi, Tetsuya
AU - Sakamoto, Takahide
AU - Miyazaki, Tetsuya
AU - Izutsu, Masayuki
AU - Fujita, Takahisa
AU - Mori, Shingo
AU - Higuma, Kaoru
AU - Ichikawa, Junichiro
PY - 2006/5
Y1 - 2006/5
N2 - We investigated an integrated optical modulator consisting of two Mach-Zehnder interferometers. The modulator can generate optical signals in various types of modulation formats, which have advantages for long-haul transmission, optical labeling, etc. By using a fabricated versatile optical modulator having traveling-wave electrodes designed for high-speed signals, we demonstrated generation of optical 40 Gb/s frequency-shift-keying signals, which can be demodulated by an optical filter. 80 Gb/s optical differential quadrature-shift-keying modulation was also demonstrated, where 40 Gb/s in-phase and quadrature data were, simultaneously, fed to the modulator.
AB - We investigated an integrated optical modulator consisting of two Mach-Zehnder interferometers. The modulator can generate optical signals in various types of modulation formats, which have advantages for long-haul transmission, optical labeling, etc. By using a fabricated versatile optical modulator having traveling-wave electrodes designed for high-speed signals, we demonstrated generation of optical 40 Gb/s frequency-shift-keying signals, which can be demodulated by an optical filter. 80 Gb/s optical differential quadrature-shift-keying modulation was also demonstrated, where 40 Gb/s in-phase and quadrature data were, simultaneously, fed to the modulator.
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U2 - 10.1364/OE.14.004469
DO - 10.1364/OE.14.004469
M3 - Article
C2 - 19516600
AN - SCOPUS:33646572539
SN - 1094-4087
VL - 14
SP - 4469
EP - 4478
JO - Optics Express
JF - Optics Express
IS - 10
ER -