High-speed electroabsorption modulator integrated DFB laser for 40 Gbps and 100 Gbps application

Makino, Shigeki; Shinoda, Kazunori; Kitatani, T.; Hayashi, Hiroaki; Shiota, T.; Tanaka, Shigehisa; Aoki, Masahiro; Sasada, Noriko; Naoe, Kazuhiko

doi:10.1109/iciprm.2009.5012443

Cited by 5 publications

(2 citation statements)

References 22 publications

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“…With the advances in broadband modulators, techniques based on external modulation gained popularity, especially those employing frequency multiplication, which relaxed the bandwidth requirements of both the modulator and the associated electronics [37]. Furthermore, external modulation showed its full potential with the advection of photonic chips that integrated the laser source together with an electroabsorption modulator [38]. Simultaneously, mm-wave generators based on alternative approaches have been investigated, for instance, in [39] where a passive mode-locked laser is used to avoid the high-frequence electrical oscillator.…”

Section: Photonic Generation Of Mm-wave Signalsmentioning

confidence: 99%

A Tutorial on Optical Feeding of Millimeter-Wave Phased Array Antennas for Communication Applications

Aldaya

Campuzano

Castañón

et al. 2015

International Journal of Antennas and Propagation

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Given the interference avoidance capacity, high gain, and dynamical reconfigurability, phased array antennas (PAAs) have emerged as a key enabling technology for future broadband mobile applications. This is especially important at millimeter-wave (mm-wave) frequencies, where the high power consumption and significant path loss impose serious range constraints. However, at mm-wave frequencies the phase and amplitude control of the feeding currents of the PAA elements is not a trivial issue because electrical beamforming requires bulky devices and exhibits relatively narrow bandwidth. In order to overcome these limitations, different optical beamforming architectures have been presented. In this paper we review the basic principles of phased arrays and identify the main challenges, that is, integration of high-speed photodetectors with antenna elements and the efficient optical control of both amplitude and phase of the feeding current. After presenting the most important solutions found in the literature, we analyze the impact of the different noise sources on the PAA performance, giving some guidelines for the design of optically fed PAAs.

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Section: Photonic Generation Of Mm-wave Signalsmentioning

confidence: 99%

A Tutorial on Optical Feeding of Millimeter-Wave Phased Array Antennas for Communication Applications

Aldaya

Campuzano

Castañón

et al. 2015

International Journal of Antennas and Propagation

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“…[1,2,3] So far, EAMs are typically fabricated by using lumped-electrode [1,2,3] and travelling-wave-electrode. [4,5,6,7] The lumped-electrode EAM (LEAM) has been researched extensively since it can be easily fabricated by using several conventional technology processes.…”

Section: Introductionmentioning

confidence: 99%

Dual-depletion-region lumped electroabsorption modulator for low capacitance and expected high bandwidth

Shao

Zhao

et al. 2011

SPIE Proceedings

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A dual-depletion-region lumped electroabsorption modulator (DDR-LEAM) based on InP at 1550nm is designed and fabricated. The measurement results reveal that the dual depletion region structure can reduce the device capacitance significantly without any degradation of extinction ratio. The simulation results show that the highly doped charge layer can concentrate almost all of the external applied voltage in MQW region and thus contribute to the identical extinction ratio curves. The expected 3-dB bandwidth of the DDR-LEAMs using an equivalent circuit model is more than twice lager than that of the conventional LEAM.

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Photonic Integrated Circuits

Coldren

Corzine

Masanovic

2012

Diode Lasers and Photonic Integrated Circuits

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Spiral-waveguide amplifiers in erbium-doped aluminum oxide on a silicon wafer are fabricated and characterized. Spirals of several lengths and four different erbium concentrations are studied experimentally and theoretically. A maximum internal net gain of 20 dB in the smallsignal-gain regime is measured at the peak emission wavelength of 1532 nm for two sample configurations with waveguide lengths of 12.9 cm and 24.4 cm and concentrations of 1.92 × 10 20 cm -3 and 0.95 × 10 20 cm -3 , respectively. The noise figures of these samples are reported. Gain saturation as a result of increasing signal power and the temperature dependence of gain are studied.

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High-speed electroabsorption modulator integrated DFB laser for 40 Gbps and 100 Gbps application

Cited by 5 publications

References 22 publications

A Tutorial on Optical Feeding of Millimeter-Wave Phased Array Antennas for Communication Applications

A Tutorial on Optical Feeding of Millimeter-Wave Phased Array Antennas for Communication Applications

Dual-depletion-region lumped electroabsorption modulator for low capacitance and expected high bandwidth

Photonic Integrated Circuits

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