Assessment of commercial optical amplifiers for potential use in space applications

Barbero, Juan; Sotom, M.; Benazet, B.; Esquivias, I.; Hernández, Francisco J. López

doi:10.1117/12.2308290

Cited by 3 publications

(2 citation statements)

References 5 publications

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“…The required 200 mW input power for 400 Gb/s transmission seen in scenario 3 is relatively high given the low wall-plug efficiencies of erbium-doped fiber amplifiers (EDFAs), as required to boost the comb power to the necessary level, which are in the range of 3-10% for this power class [47]. The required power to boost the comb has, however, to be put in relation with the power savings resulting from using a single high-speed TWphase-modulator instead of driving four independent 50-GBd silicon modulators.…”

Section: Equalization Conceptmentioning

confidence: 99%

Chip-to-Chip Orthogonal Delay-Division Multiplexed Network With Optically Enabled Equalization

Zazzi,

Witzens

2024

J. Lightwave Technol.

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We propose and model an optical communication scheme for short distance datacom links based on the distribution of information across a wide comb spectrum. This modulation format, orthogonal delay division multiplexing, allows the multiplexing of data streams from multiple modulators, as well as the deserialization and equalization of the data in the optical domain. A concrete communication system, that allows the transport of 400 Gb/s across a single CWDM channel with a single 80 GHz cutoff lithium niobate on insulator modulator, is modeled under consideration of all noise sources present in the system and its sensitivity to group velocity dispersion and manufacturing variations is analyzed. Data is deserialized and equalized at the receiver with a 5-tap optical equalizer. This communication architecture may provide a path forward to implement high-baudrate signaling in short-reach optical links without requiring highspeed ADCs and electronic deserializers at the receiver, thus maintaining the in-package power consumption at manageable levels.

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Section: Equalization Conceptmentioning

confidence: 99%

Chip-to-Chip Orthogonal Delay-Division Multiplexed Network With Optically Enabled Equalization

Zazzi,

Witzens

2024

J. Lightwave Technol.

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“…Scenario 1 (250 mW, no E-O bandwidth limitations) results in a Q-scale of 7 sufficient to achieve error free operation. Scenario 2 (250 mW, realistic E-O bandwidth, no FFE) shows a high overlap between the 4 peaks of the The required 200 mW input power for 400 Gb/s transmission seen in scenario 3 is relatively high given the low wall-plug efficiencies of erbium-doped fiber amplifiers (EDFAs), as required to boost the comb power to the necessary level, which are in the range of 3-10% for this power class [43]. The required power to boost the comb has, however, to be put in relation with the power savings resulting from using a single high-speed TWphase-modulator instead of driving four independent 50-GBd silicon modulators.…”

Section: Equalization Conceptmentioning

confidence: 99%

Wideband SiN pulse interleaver for optically-enabled analog-to-digital conversion: a device-to-system analysis with cyclic equalization

et al. 2022

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We present the design and experimental characterization of a silicon nitride pulse interleaver based on coupled resonator optical waveguide filters. In order to achieve a targeted free spectral range of 1.44 THz, which is large given the reduced optical confinement of the silicon nitride platform, individual ring resonators are designed with tapered waveguides. Its application to time-interleaved photonically-assisted ADCs is analyzed by combining experimental characterization of the photonic integrated circuit with a comprehensive model of the entire ADC. The impact of fundamental signal distortion and noise sources affecting the converter is investigated and suitable equalization techniques at the digital signal processing level are evaluated. The novel application of a simple but powerful equalization filter in the DSP domain allows for a significant improvement of the digitized signal SNR. An ENOB of 5 over a 75 GHz bandwidth (150 GS/s) and an ENOB of 4.3 over a 100 GHz bandwidth (200 GS/s) are expected to be achievable with compact and off-the-shelf single-section semiconductor mode locked lasers, that can be further improved with lower noise light sources.

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10W single-mode PM optical amplifiers in the 1.5 μm for space applications

Haddad

Gonthier

Peng

et al. 2019

International Conference on Space Optics — ICSO 2018

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MPB is developing space qualified 10 W End Of Life (EOL) optical amplifiers for longer range applications. Their design employs Polarization Maintaining (PM) Erbium and Erbium-Ytterbium Double Clad Fiber (EDF, EYDF) singlemode fibers. Absorption losses of the EDF and EYDF due to radiation in space are the major challenge to overcome. The gamma radiation tests show that the PM fibers have a greater sensitivity than standard fibers. However, in many applications, PM amplifiers show greater performances which is important for the power consumption.Furthermore, MPB's design minimizes Stimulated Brillouin Scattering in the fibers, a major obstacle to be overcome at this power level, even for on ground applications. Moreover, the compatibility with space environment (vacuum, temperature cycling, and radiation) of the high-power optical and electronic components (isolators, laser-diode pumps, current drivers) has to be demonstrated.The proposed optical designs compensate for radiation-induced losses, without resorting to the use of expensive radiation qualified fibers-a unique method of power recuperation through the photo-bleaching of the active fiber.

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Assessment of commercial optical amplifiers for potential use in space applications

Cited by 3 publications

References 5 publications

Chip-to-Chip Orthogonal Delay-Division Multiplexed Network With Optically Enabled Equalization

Chip-to-Chip Orthogonal Delay-Division Multiplexed Network With Optically Enabled Equalization

Wideband SiN pulse interleaver for optically-enabled analog-to-digital conversion: a device-to-system analysis with cyclic equalization

10W single-mode PM optical amplifiers in the 1.5 μm for space applications

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