50W, 1.5um, 8 WDM (25nm) channels PPM downlink Tx for deep space lasercom

Engin, Doruk; Litvinovitch, Slava; Pachowics, David; Hwang, Jacob; Gilman, Chad; Cao, He; Petrillo, Keith G.; Storm, Mark; Wright, Malcolm W.

doi:10.1117/12.2543905

Cited by 7 publications

(5 citation statements)

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“…Typically, WDM is achieved using wavelength-selective optical components. One of the candidates for the multiplexer is the fiber-or waveguide-type WDM coupler [8] . However, the optical power tolerance of conventional fiber-type devices is generally a few watts or less, thus they are not suitable for high-power multiplexers.…”

Section: Wavelength Multiplexers For Hp-wdmmentioning

confidence: 99%

High power wavelength division multiplexing (HP-WDM) for high-speed space optical communication

Takamatsu,

Kimura,

Hashimoto

et al. 2024

Free-Space Laser Communications XXXVI

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Free-space optical communications are becoming essential, especially in space communications. Examples include data transmission for Earth observation satellites, cislunar space networks and deep space exploration missions. One approach to enhancing the capacity of free-space optical communication is increasing transmission power. However, achieving high output power while meeting the components requirements (e.g., space-environmental resistance, long-lifetime, and performance reliability) with a single optical amplifier is challenging. To address this challenge, we propose high-power wavelength-division multiplexing (HP-WDM) that consists of a free-space multiplexer and conventional high-power amplifiers.

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Section: Wavelength Multiplexers For Hp-wdmmentioning

confidence: 99%

High power wavelength division multiplexing (HP-WDM) for high-speed space optical communication

Takamatsu,

Kimura,

Hashimoto

et al. 2024

Free-Space Laser Communications XXXVI

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“…Here, a very brief description of the WDM amplifier and its optical performance is presented. More detailed results can be found in references 14,15 . Figure 2 shows a high level optical block diagram for the delivered WDM amplifier.…”

Section: ) High Trl 50w 8ch Wdm Pm Amplifier Optical Characteristicsmentioning

confidence: 99%

“…In early 2021, Fibertek delivered a space qualifiable, high TRL, 50W 8 channel WDM amplifier 14,15 . Figure 1 (Right) shows the picture of the delivered amplifier.…”

Section: ) Introductionmentioning

confidence: 99%

FWM-PEV statistics in 8 channel 50W high power WDM PPM Tx with and without TDM based FWM mitigation

Engin

Hwang

Dang

et al. 2023

Free-Space Laser Communications XXXV

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Fibertek is developing a power efficient, space qualifiable Eight WDM Channel PPM Downlink Tx Seed LAser Module (SAM) with TDM based FWM Mitigation Capability. SAM will be compatible with space qualifiable, high TRL, 8 WDM channel, 50W WDM Amplifier prototype that was delivered in early 2021. SAM together with the WDM Amplifier will meet all the requirements of a spaceflight DSOC WDM Transmitter. Fibertek has developed a comprehensive multi gain stage 1.5um WDM fiber amplifier numerical model that accurately quantifies the degradation of WDM PPM signals due to FWM. The physics model is used to quantify FWM-PEV for all 2 and 3 overlapping wavelength configurations of PPM orders 256-16. Results are used as inputs to a PPM statistics model that calculates the PEV statistics for all the PPM orders and WDM channels. The significant Improvements of the PEV statistics with the TDM based FWM mitigation using 2 or 3 wavelength subslots are quantified.

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“…In the C-band, much lower powers have to date been published. The highest power demonstrated from an amplifier for space borne use is ≈10W [8], whilst for terrestrial use the highest power from an amplifier is ≈50W [9]. To this end, significant increases in amplifier power are required to enable future Tbit/s systems and limit the number of amplifiers that must be combined to generate the required power level.…”

Section: Introductionmentioning

confidence: 99%

Extremely powerful optical sources (EPOS) for Tbit/s satellite links

Welch¹,

Edmunds²,

Thipparapu³

et al. 2023

Free-Space Laser Communications XXXV

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Satellite free-space optical communication offers higher data rates, lower power consumption and mass savings compared to traditional RF and microwave technologies that are currently more widely deployed. Data rates are quickly increasing; with higher data throughputs enabled if higher power optical amplifiers are available.In this paper submission, G&H discuss initial scoping work performed in project EPOS (Extremely Powerful Optical Sources), a European Space Agency (ESA) funded development programme to significantly increase the optical power available from C-Band optical amplifiers. The project will develop a 100W amplifier for spaceborne use and a 1000W combined amplifier source for ground that will be enabling components in Tbit/s links.

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50W, 1.5um, 8 WDM (25nm) channels PPM downlink Tx for deep space lasercom

Cited by 7 publications

References 0 publications

High power wavelength division multiplexing (HP-WDM) for high-speed space optical communication

High power wavelength division multiplexing (HP-WDM) for high-speed space optical communication

FWM-PEV statistics in 8 channel 50W high power WDM PPM Tx with and without TDM based FWM mitigation

Extremely powerful optical sources (EPOS) for Tbit/s satellite links

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