81 Gb/s WDM transmission at 2μm over 1.15 km of low-loss hollow core photonic bandgap fiber

Zhang, H.; Li, Z.; Kavanagh, N.; Zhao, Jian; Ye, N.; Chen, Y.; Wheeler, Natalie V.; Wooler, J. P.; Hayes, J. R.; Sandoghchi, Seyed Reza; Poletti, F.; Petrovich, M. N.; Alam, Shaif-ul; Phelan, Richard; O’Carroll, John; Kelly, Brian; Richardson, David J.; Corbett, Brian; Gunning, Fatima C. Garcia

doi:10.1109/ecoc.2014.6964083

Cited by 23 publications

(17 citation statements)

References 8 publications

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“…Following that 4-channel transmission of 16 Gb/s signals over 290 m of HC-PBGF was demonstrated [17]. Recently, 8-channel coarse WDM transmission over 1.15 km of HC-PBGF was shown using 4-channel 12.5 Gb/s OOK external modulation and 4-channel 7.7 Gb/s 4-ASK Fast-OFDM direct modulation [18], providing a total capacity of 81 Gb/s. As can be seen, the single channel capacity in these previous demonstrations was relatively low, since the existing components have limited bandwidth (e.g., modulators, directlymodulated lasers).…”

Section: Introductionmentioning

confidence: 99%

High-Capacity Directly Modulated Optical Transmitter for 2-μm Spectral Region

Liu

Chen

et al. 2015

J. Lightwave Technol.

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Abstract-The 2-µm wave band is emerging as a potential new window for optical telecommunications with several distinct advantages over the traditional 1.55µm region. First of all, the Hollow-Core Photonic Band Gap Fiber (HC-PBGF) is an emerging transmission fiber candidate with ultra-low nonlinearity and lowest latency (0.3% slower than light propagating in vacuum) that has its minimum loss within the 2-µm wavelength band. Secondly, the Thulium-doped fiber amplifier that operates in this spectral region provides significantly more bandwidth than the Erbium-doped fiber amplifier. In this paper we demonstrate a single-channel 2-µm transmitter capable of delivering >52 Gbit/s data signals, which is twice the capacity previously-demonstrated. To achieve this we employ discrete multi-tone (DMT) modulation via direct current modulation of a Fabry-Perot semiconductor laser. The 4.4-GHz modulation bandwidth of the laser is enhanced by optical injection locking, providing up to 11 GHz modulation bandwidth. Transmission over 500-m and 3.8-km samples of HC-PBGF is demonstrated.

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Section: Introductionmentioning

confidence: 99%

High-Capacity Directly Modulated Optical Transmitter for 2-μm Spectral Region

Liu

Chen

et al. 2015

J. Lightwave Technol.

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“…We previously presented in [4] that either direct laser modulation, or external modulation can be implemented in the 2 µm region, and successfully demonstrated the first WDM transmission experiment over 290 m of HC-PBGF. In addition, we recently reported error-free 81 Gbit/s WDM transmission at 2 µm over 1.15 km of low-loss HC-PBGF [12].…”

Section: Introductionmentioning

confidence: 99%

100 Gbit/s WDM transmission at 2 µm: transmission studies in both low-loss hollow core photonic bandgap fiber and solid core fiber

Zhang¹,

Kavanagh²,

Li³

et al. 2015

Opt. Express

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116

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Abstract:We show for the first time 100 Gbit/s total capacity at 2 µm waveband, using 4 × 9.3 Gbit/s 4-ASK Fast-OFDM direct modulation and 4 × 15.7 Gbit/s NRZ-OOK external modulation, spanning a 36.3 nm wide wavelength range. WDM transmission was successfully demonstrated over 1.15 km of low-loss hollow core photonic bandgap fiber (HC-PBGF) and over 1 km of solid core fiber (SCF). We conclude that the OSNR penalty associated with the SCF is minimal, while a ~1-2 dB penalty was observed after the HC-PBGF probably due to mode coupling to higher-order modes. 594-596 (2011).

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“…3 show that the devices made from Design-2 material reached a 3-dB cut-off frequency of around 10 GHz at −10 V, limited by the small signal bandwidth of the 2 μm modulator [15]. This was much larger than the devices from Design-1 material which only reached 6.5 GHz.…”

Section: B Capacitance and Small Signal Characterizationmentioning

confidence: 94%

InGaAs Surface Normal Photodiode for 2 <inline-formula> <tex-math notation="LaTeX">$\mu \text{m}$ </tex-math></inline-formula> Optical Communication Systems

Yang

Gleeson

et al. 2015

IEEE Photon. Technol. Lett.

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High bandwidth 2-µm wavelength surface normal p-i-n photodiodes using a high indium-content InGaAs strainrelaxed absorbing layer clad by p-and n-doped AlInGaAs layers are realized. A parabolic grading was used to relax the lattice constant from that of the InP substrate. We compare structures with different p-doping profiles and absorber thicknesses to achieve a 3-dB bandwidth of ∼10 GHz while maintaining a photoresponsivity of 0.93 A/W. A clear opening of the 10-Gb/s eye pattern was obtained with an input power of −3.07 dBm. By temperature-control of the mesa passivation process, the device leakage was reduced to 0.52 µA at −5 V bias.Index Terms-High speed photodiode, InGaAs, 2 µm.

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81 Gb/s WDM transmission at 2μm over 1.15 km of low-loss hollow core photonic bandgap fiber

Cited by 23 publications

References 8 publications

High-Capacity Directly Modulated Optical Transmitter for 2-μm Spectral Region

High-Capacity Directly Modulated Optical Transmitter for 2-μm Spectral Region

100 Gbit/s WDM transmission at 2 µm: transmission studies in both low-loss hollow core photonic bandgap fiber and solid core fiber

InGaAs Surface Normal Photodiode for 2 <inline-formula> <tex-math notation="LaTeX">$\mu \text{m}$ </tex-math></inline-formula> Optical Communication Systems

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