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커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.4
- 수록면
- 141 - 146 (6page)
이용수
초록· 키워드
오류제보하기
We have evaluated the suppression effect of atmospheric-turbulence-induced optical scintillation in terrestrial free-space optical (FSO) communication systems using a gain-saturated erbium-doped fiber amplifier (EDFA). The variation of EDFA output signal power has been measured with different amounts of gain saturation and modulation indices of the optical input signal. From the measured results, we have found that the peak-to-peak power variation was decreased drastically below 2 kHz of modulation frequency, in both 3-dB and 6-dB gain compression cases. Then, the power spectral density (PSD) of optical scintillation has been calculated with Butterworth-type transfer function. In the calculation, different levels of atmospheric-turbulence-induced optical scintillation have been taken into account with different values of the Butterworth cut-off frequency. Finally, the suppression effect of optical scintillation has been estimated with the measured frequency response of the EDFA and the calculated PSD of the optical scintillation. From our estimated results, the atmospheric-turbulence-induced optical scintillation could be suppressed efficiently, as long as the EDFA were operated in a deeply gain-saturated region.
목차
Ⅰ. INTRODUCTION
Ⅱ. RESULTS AND DISCUSSION
Ⅲ. SUMMARY
REFERENCES
참고문헌 (14)
참고문헌 신청
H. Hemmati / 2009 / Near-earth Laser Communications / CRC Press
H. Henniger / 2010 / An introduction to free-space op-tical communicatio / Radioengineering 19:203~212
F. Moll / 2015 / Dem-onstration of high-rate laser communications from a fast air-borne platform / IEEE J. Sel. Area Commun 33:1985~1995
W. Fawaz / 2018 / UAV-aided coopera tion for FSO communication systems / IEEE Commun. Mag 56:70~75
B. Moision / 2017 / Demonstration of free-space optical communication for long-range data links between bal-loons on Project Loon / Proc. SPIE 100960:100960Z
H. Henniger / 2010 / An introduction to free-space op-tical communicatio / Radioengineering 19:203~212
F. Moll / 2015 / Dem-onstration of high-rate laser communications from a fast air-borne platform / IEEE J. Sel. Area Commun 33:1985~1995
W. Fawaz / 2018 / UAV-aided coopera tion for FSO communication systems / IEEE Commun. Mag 56:70~75
B. Moision / 2017 / Demonstration of free-space optical communication for long-range data links between bal-loons on Project Loon / Proc. SPIE 100960:100960Z
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