&lt;title&gt;SILEX overview after flight terminals campaign&lt;/title&gt;

Laurent, Bernard; Planche, Gilles

doi:10.1117/12.273693

Cited by 22 publications

(7 citation statements)

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“…[7] In this paper, a completed optical pointing, acquisition and tracking (PAT) test-bed is reported for this aim, which has an overall aperture of about φ440mm and is an integration of a 2D optical scanner of two rotating prisms, a 2D fine beam deflector of two tilting optical wedges and a double-focus laser collimator. This test-bed tests and verifies the optical PAT performance of a terminal in a fully physical way.…”

Section: Introductionmentioning

confidence: 99%

An integrated test-bed for PAT testing and verification of inter-satellite lasercom terminals

et al. 2007

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It is necessary, on the ground in a laboratory, to test the technical parameters and to verify the working performance for the optical pointing, acquisition and tracking (PAT) of an inter-satellite lasercom terminal. In this paper, we report a completed PAT test-bed for this aim. The test-bed works in a fully physical way and is an integration of a 2D optical scanner of two rotating prisms, a 2D fine beam deflector of two tilting optical wedges and a double-focus laser collimator, the overall aperture is about φ440mm.The optical scanner is designed to scan the beam in the range of 30° with an accuracy of 100µrad and used to simulate the mutual movement between two satellites. The fine beam deflector has the maximum beam deviation of about 1mrad with a step of 0.5µrad and is used to measure the tracking error of a terminal. The collimator has the double focal lengths, respectively, of 1.5m and 10m, the former provides a wide view of field for the use in the acquisition process of the terminal and the latter a narrow view of field for the use in the tracking process. In this paper, the design and fabrication considerations of the PAT test-bed as well as the main specifications of the completed integrated test-bad are given

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Section: Introductionmentioning

confidence: 99%

An integrated test-bed for PAT testing and verification of inter-satellite lasercom terminals

et al. 2007

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“…How to simulate the space optical link on-ground is an important problem for testing and validating the prelaunch characterization of lasercomm terminals (LCTs). In previous works [1][2][3][4][5][6][7][8], many optical attenuators were used in system testbed to cut down the laser power transmitted from LCT to levels expected at the counter receiver for performance testing. However, an optical attenuator cannot fully describe the process of longdistance propagation of laser beams in free space.…”

Section: Introductionmentioning

confidence: 99%

On-ground simulation of optical links for free-space laser communications

Wan

Liu

Sun

2010

Optik

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“…Consequently, it provides an attractive alternative to microwave communication for both commercial and military applications. [1][2][3][4][5][6][7][8][9] Due to small beam divergence and ultra-long distance, wavefront aberrations can strongly affect the performance of communication links.…”

Section: Introductionmentioning

confidence: 99%

Influence of misalignment and aberrations on antenna received power in free-space laser communications

Tan

Yang

et al. 2009

Opt. Eng

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To evaluate the influence of wavefront aberrations on antenna received power in free-space laser communications, an aberration attenuation factor is proposed, based on which the power penalty at the receiver due to misalignment and primary aberrations is investigated. It is shown that antenna received power decreases gradually with increasing misalignment and aberrations. A comparison shows that tilt ͑misalign-ment͒ has greater influence than other primary aberrations. When the rms aberration value is 0.1, the received power penalties caused by tilt, astigmatism, coma, curvature, and spherical aberrations are about 40%, 36%, 35%, 24%, and 23%, respectively. In addition, the obscuration ratio of the transmitter antenna has a noticeable but relatively minor influence on the aberration attenuation factor.

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<title>SILEX overview after flight terminals campaign</title>

Cited by 22 publications

References 0 publications

An integrated test-bed for PAT testing and verification of inter-satellite lasercom terminals

An integrated test-bed for PAT testing and verification of inter-satellite lasercom terminals

On-ground simulation of optical links for free-space laser communications

Influence of misalignment and aberrations on antenna received power in free-space laser communications

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