- Page 6 and 7: ContentsAbstractAcknowledgementList
- Page 8 and 9: 4.3.1 Averaged kernel for the phase
- Page 10 and 11: List of Figures3.1 The scalar diffr
- Page 12 and 13: 5.2 Scintillation index for transmi
- Page 14 and 15: 5.15 Monte-Carlo simulated performa
- Page 16 and 17: 5.6 Optimal weighting α p , scinti
- Page 18 and 19: Free space optical communicationsBe
- Page 20 and 21: man-made sources such as laser guid
- Page 22 and 23: Historically, most of the original
- Page 24 and 25: Chapter 2BackgroundBecause of its i
- Page 26 and 27: and included the effect of absorpti
- Page 28 and 29: agation cases, the experimental dat
- Page 30 and 31: the naked eye: bright stars close t
- Page 32 and 33: Chapter 3Mathematical ModelsIn this
- Page 34 and 35: yields the Huygens-Fresnel diffract
- Page 36 and 37: we find that paraxial waves satisfy
- Page 38 and 39: withH 0 (x) = 1, and H 1 (x) = 2x.
- Page 40 and 41: Figure 3.3: Laguerre Gaussian beams
- Page 42 and 43: tion f(⃗r, t) is also an analytic
- Page 44 and 45: YYu 1v 1u 2oXXAv 2ZZ = 0Z = dFigure
- Page 46 and 47: It has been shown that the cross-sp
- Page 48 and 49: process. The fluctuations about the
- Page 50 and 51: where κ 0 = 2π/L 0 and κ m = 5.9
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3.5.2 Born approximationIn the Born
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ewritten as∇ 2 ψ s + 2∇ψ 0 ·
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of the inhomogeneous wave equation
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AZAZ(a)(b)Figure 3.5: Turbulence la
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intensity fluctuations:S I = var[I]
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−0.2−0.2−0.1−0.1(meter)0(me
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10.90.80.70.60.50.40.30.20.10−4
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discussed and complete solutions ar
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where 〈H(⃗u 1 , ⃗u 2 )〉 is
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where D φ (⃗u 1 , ⃗u 2 ) is th
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−10.9−10.4(meter)0.500.80.70.60
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equation is correct to all orders i
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This result is not unexpected becau
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the received intensity is|g(v)| 2 =
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4.4.2 Two dimensional experimentAs
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improvement space for it. Short ter
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5.1 Optimal Pupil Plane Mutual Cohe
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intensity are needed:〈 〉 I2−
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5.2.1 First moment of the integrate
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optimal pupil plane coherence.It wa
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The term C in the above equation ha
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5.4.1 Scintillation reduction by us
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m I m µ m S m0 0.9249 0.6419 0.130
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N = 1 2 3 4 5 6 7 8α 0 1.0000 0.17
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p ξ p µ p S p0 0.8981 0.6296 0.12
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screen in the pupil plane according
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Scintillation index of single mode0
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0.4r 0= 0.050.8r 0= 0.050.35r 0= 0.
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0.90.80.7r 0= 0.05 mr 0= 0.1 mr 0=
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Physical parameter Symbol Value(s)t
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0.6C n2 = 2x10−16C n2 = 5x10−16
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0.70.6m=1m=2m=3m=40.450.40.35N=1N=2
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3. We have shown that the optimal c
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Appendix AGlossary of SymbolsAa(x)c
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τ Time shift = t 2 − t 1θ Propa
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[8] M. Beran. Propagation of a fini
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[27] R. M. Gagliardi and S. Karp. O
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[45] A. N. Kolmogorov. Turbulence,
- Page 128 and 129:
[63] Timothy J. Schulz. Optimal bea
- Page 130:
[82] H. T. Yura. Mutual coherence f