&lt;title&gt;The magic of relay mirrors&lt;/title&gt;

Duff, Edward A.; Washburn, Donald C.

doi:10.1117/12.567096

Cited by 12 publications

(6 citation statements)

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“…Relay mirror systems, which have been under intensive research recently [1][2][3][4][5], can be used to redirect laser light from ground-and airborne-based laser sources to distant targets. The advantage of this technology is the range extension of current power beaming systems [2,3].…”

Section: Introductionmentioning

confidence: 99%

Improving the power coupling efficiency in a relay mirror system using a multiple laser array

Zhang

Liu

et al. 2010

Optics & Laser Technology

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Section: Introductionmentioning

confidence: 99%

Improving the power coupling efficiency in a relay mirror system using a multiple laser array

Zhang

Liu

et al. 2010

Optics & Laser Technology

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“…1 There are many different proposed designs, but in general a relay mirror is an optical system that is stationed at a high altitude and redirects light from a high energy laser (HEL) source to a target. The relay mirror concept has been under development for many years.…”

Section: Introductionmentioning

confidence: 99%

Development of an adaptive optics test-bed for relay mirror applications

2005

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The relay mirror concept involves deploying a passive optical station at a high altitude for relaying a beam from a laser weapon to a target. Relay mirrors have been proposed as a method of increasing the range of laser weapons that is less costly than deploying a larger number of laser weapons. Relay mirrors will only be effective if the beam spreading and beam quality degradation induced by atmospheric aberrations and thermal blooming can be mitigated. In this paper we present the first phase of a multi-year effort to develop a theoretical and experimental capability at Boeing-SVS to study these problems. A team from MZA and Boeing-SVS has developed a laboratory test-bed consisting of a distributed atmospheric path simulated by three liquid crystal phase screens, a Shack-Hartmann wavefront sensor, and a MEMS membrane deformable mirror. We present results of AO component calibration and evaluation, the system construction, and the system performance.

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“…For relay propagation, one advantage is that the received beam can be cleaned up in a relay system [24][25][26], which means the increase of the spatial correction length. To see the effects of the correction performance of the relay system in non-Kolmogorov turbulence, the dependence of PIB on α with different σ (which is defined as in Equation (10g)) is plotted in Fig.…”

Section: The Properties Of Partially Coherent Cosh-gaussian Beam To Tmentioning

confidence: 99%

“…Many factors limit the propagation of laser beams, such as turbulent atmosphere and transmission. Relay propagation at high elevation angles has been proposed to overcome this problem, which has been proved to be a valid method [25][26][27][28][29][30]. Relay propagation will be affected not only by its travel path but also by the relay system, such as the size of the receiver of relay system and the correction, which is different from the direct propagation.…”

Section: Introductionmentioning

confidence: 99%

Relay Propagation of Partially Coherent Cosh-Gaussian Beams in Non-Kolmogorov Turbulence

Tao¹,

Liu²,

Ma³

et al. 2012

PIER

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Abstract-The analytical formulas for the average intensity and power in the bucket of the relay propagation of partially coherent cosh-Gaussian (ChG) beams in non-Kolmogorov turbulence have been derived based on the extended Huygens-Fresnel principle. The influences of the beam parameters, relay system parameters and the non-Kolmogorov turbulence parameters on relay propagation are investigated by numerical examples. Numerical results reveal that the relay propagation of the beam is different from that in the case of Kolmogorov turbulence. It is shown that the relay propagation has advantages over direct propagation, and the relay propagation of partially coherent ChG beams depends greatly on the beam parameters, relay system and the generalized exponent α. The focusability of the beam at the target in non-Kolmogorov turbulence increases with larger inner scale, larger relay system radius, smaller outer scale, and smaller generalized structure constant. The results are useful for the practical applications of relay propagation, i.e., freespace communication.

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<title>The magic of relay mirrors</title>

Cited by 12 publications

References 0 publications

Improving the power coupling efficiency in a relay mirror system using a multiple laser array

Improving the power coupling efficiency in a relay mirror system using a multiple laser array

Development of an adaptive optics test-bed for relay mirror applications

Relay Propagation of Partially Coherent Cosh-Gaussian Beams in Non-Kolmogorov Turbulence

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