Aperture averaging in multiple-input single-output free-space optical systems

Name: Aperture averaging in multiple-input single-output free-space optical systems
Author: Gökçe, M. C., Baykal, Y., Kamacıoğlu, C., Uysal, Murat

İsim	Aperture averaging in multiple-input single-output free-space optical systems
Yazar	Gökçe, M. C., Baykal, Y., Kamacıoğlu, C., Uysal, Murat
Basım Tarihi:	2015-06
Basım Yeri	- SPIE
Konu	Multiple-input single-output systems, Free-space optical communication, Optical wave propagation, Power scintillation, Aperture averaging
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	1560-2303
Kayıt Numarası	98dc9fc0-a7a3-4001-a467-d83aad6e9d53
Lokasyon	Electrical & Electronics Engineering
Tarih	2015-06
Notlar	Due to copyright restrictions, the access to the full text of this article is only available via subscription.
Örnek Metin	Multiple-input single-output systems are employed in free-space optical links to mitigate the degrading effects of atmospheric turbulence. We formulate the power scintillation as a function of transmitter and receiver coordinates in the presence of weak atmospheric turbulence by using the extended Huygens–Fresnel principle. Then the effect of the receiver–aperture averaging is quantified. To get consistent results, parameters are chosen within the range of validity of the wave structure functions. Radial array beams and a Gaussian weighting aperture function are used at the transmitter and the receiver, respectively. It is observed that the power scintillation decreases when the source size, the ring radius, the receiver–aperture radius, and the number of array beamlet increase. However, increasing the number of array beamlets to more than three seems to have negligible effect on the power scintillation. It is further observed that the aperture averaging effect is stronger when radial array beams are employed instead of a single Gaussian beam.
DOI	10.1117/1.OE.54.6.066103
Cilt	54

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Aperture averaging in multiple-input single-output free-space optical systems

Yazar Gökçe, M. C., Baykal, Y., Kamacıoğlu, C., Uysal, Murat

Basım Tarihi 2015-06

Basım Yeri - SPIE

Konu Multiple-input single-output systems, Free-space optical communication, Optical wave propagation, Power scintillation, Aperture averaging

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 1560-2303

Kayıt Numarası 98dc9fc0-a7a3-4001-a467-d83aad6e9d53

Lokasyon Electrical & Electronics Engineering

Tarih 2015-06

Notlar Due to copyright restrictions, the access to the full text of this article is only available via subscription.

Örnek Metin Multiple-input single-output systems are employed in free-space optical links to mitigate the degrading effects of atmospheric turbulence. We formulate the power scintillation as a function of transmitter and receiver coordinates in the presence of weak atmospheric turbulence by using the extended Huygens–Fresnel principle. Then the effect of the receiver–aperture averaging is quantified. To get consistent results, parameters are chosen within the range of validity of the wave structure functions. Radial array beams and a Gaussian weighting aperture function are used at the transmitter and the receiver, respectively. It is observed that the power scintillation decreases when the source size, the ring radius, the receiver–aperture radius, and the number of array beamlet increase. However, increasing the number of array beamlets to more than three seems to have negligible effect on the power scintillation. It is further observed that the aperture averaging effect is stronger when radial array beams are employed instead of a single Gaussian beam.

DOI 10.1117/1.OE.54.6.066103

Cilt 54