5.625 Gbps bidirectional laser communications measurements between the NFIRE satellite and an optical ground station

Fields, R. A.; Kozlowski, D.A.; Yura, H. T.; Wong, R.L.; Wicker, Josef M.; Lunde, C.; Gregory, Mark A; Wandernoth, B.; Heine, F.; Luna, Joseph J.

doi:10.1117/12.894662

Cited by 19 publications

(9 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…11,12 The first demonstration of a BPSK laser communication link from LEO to OGS at 5.625 Gbps was reported in 2010. 13,14 These results demonstrate the applicability of free-space optical communication for not only high data rate intersatellite optical links, but also space-toground optical links. However, BPSK free-space optical communication is critically challenged by the effects of atmospheric turbulence in practical deployment.…”

Section: Introductionmentioning

confidence: 72%

“…During the optical communication link experiments, the co-measured r 0 varies from 20 to 35 mm. Compared with the published atmospheric value measured by ESA, 13 the atmospheric conditions can be considered to be worst case. So the free-space unequal-arm-length MZI-DPSK optical receiver can overcome the worst-case atmospheric conditions.…”

Section: Discussionmentioning

confidence: 99%

“…The smaller aperture compared with the Fried coherence parameter has been adopted for the satellite-to-ground BPSK communication links in order to weaken the impairment of atmospheric turbulence because no AO and other mechanisms can be used at that moment. 13,14 However, both low receiver power and low receiver power stability will limit the SNR of satellite-to-ground BPSK laser communication links. Moreover, the strong intensity fluctuations cannot be compensated by aperture averaging.…”

Section: Discussionmentioning

confidence: 99%

“…In 2011, the ESA demonstrated 5.625-Gbps bidirectional laser communication between an LEO [near-field infrared experiment (NFIRE)] and a ground communication terminal with a 65-mm diameter aperture of TESAT OGS hosted in Tenerife. 13 However, using small apertures results in low received power and strong intensity fluctuations. The adaptive optics (AO) can measure the deformations of a received wave front using a Shack-Hartmann sensor and finish the corresponding corrections by applying inverse deformations with a deformable mirror.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

2.5- and 5-Gbps time-delay self-homodyne interference differential phase-shift keying optical receiver for space-to-ground communication link

et al. 2019

View full text Add to dashboard Cite

The availability and reliability of the high data rate space-to-ground optical coherent communication links are critically challenged because the wave front of the signal beam is distorted and impaired when propagating through atmospheric turbulence. Based on the free-space interference of two successive data bits delayed by an unequal-arm-length Mach-Zehnder interferometer (MZI), a pupil-matching time-delay self-homodyne interference differential phase-shift keying (DPSK) optical receiver with 2 × 4 90-deg optical hybrid is designed for the high data rate space-to-ground optical communication links due to its immunity from wave front impairment. The delayed optical path difference (OPD) in the unequal-arm-length MZI corresponds to the duration of one bit and can be stabilized to below 1000th of the wavelength by the closed-loop feedback control. The maximum system insertion loss is <1 dB. The measurement accuracy of OPD in unequal-armlength MZI is 0.01 mm by the deramping method from a chirped laser. The double-bit-rate 2.5-∕5-Gbps DPSK optical receiver has been presented. Parallel and separate atmospheric measurement along the optical communication link is also performed simultaneously. The 2.5-and 5-Gbps optical communication links have already been verified with a ϕ300-mm receiving telescope between two buildings in downtown over a distance of 2.4 km in the worst-case atmospheric conditions. The measured bit-error-rate is better than 10 −6 . Without wave front compensation of the adaptive optics, local oscillator, and optical phase-locked loops, the pupil-matching time-delay self-homodyne interference DPSK optical receiver has great significance for future developments of space-to-ground optical communication links.

show abstract

Section: Introductionmentioning

confidence: 72%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

2.5- and 5-Gbps time-delay self-homodyne interference differential phase-shift keying optical receiver for space-to-ground communication link

et al. 2019

View full text Add to dashboard Cite

show abstract

“…式。饶瑞中 [20] 运用数值模拟计算方法分析了在一定孔径接收下的光斑特征变化。Walter 等 [21] 为了证明光束 [23] 是克服大气湍流效应最简单的一种方法，即保证接收孔径 [24] 。目前，关于减小接收口径克服大气湍流效应的研究进展较少。 3.2 自适应光学自适应光学 [25] 始于 20 世纪 50 年代，在 70 年代应用于军事成像领域 [26]…”

Section: -unclassified

Research Progress on Overcoming the Atmospheric Turbulence Effect in Satellite-to-Ground Laser Communication

Xiaoping¹,

Jianfeng²,

Peipei³

et al. 2014

激光与光电子学进展

View full text Add to dashboard Cite

The key problem in the satellite-to-ground laser communication is primarily to mitigate the effect of atmospheric turbulence. After propagating through the atmosphere with a long distance, the wave-front distortion of signal light brings about the degradation of bit error rate (BER). The experimental development of the satelliteto-ground laser communication based on the domestic and abroad research progress is described. Some effective methods and discusses to overcome the turbulence effect on the high rate communication are presented. Finally, coherent detection technology based on interference principle and differentical phase shift keying (DPSK) modulation is emphatically analyzed in the phase demodulation, and the advantages are summarized. It is predictable that this technology will become more practical and play an important role in its application areas.

show abstract

Optical Wirelss Coherent Detection: An Overview

Ke¹,

Wu²

2022

Optical Wireless Communication Theory and Technology

View full text Add to dashboard Cite

5.625 Gbps bidirectional laser communications measurements between the NFIRE satellite and an optical ground station

Cited by 19 publications

References 0 publications

2.5- and 5-Gbps time-delay self-homodyne interference differential phase-shift keying optical receiver for space-to-ground communication link

2.5- and 5-Gbps time-delay self-homodyne interference differential phase-shift keying optical receiver for space-to-ground communication link

Research Progress on Overcoming the Atmospheric Turbulence Effect in Satellite-to-Ground Laser Communication

Optical Wirelss Coherent Detection: An Overview

Contact Info

Product

Resources

About