Design and Beam Quality Analysis of Reflective Telescopes through Diffraction Effects and Third Order Aberrations

K.Shantha Lakshmi; R. Sudhakar

doi:10.4028/www.scientific.net/AMM.459.262

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 459Design and Beam Quality Analysis of Reflective...

Design and Beam Quality Analysis of Reflective Telescopes through Diffraction Effects and Third Order Aberrations

Abstract:

In the design of inter-satellite laser communication terminal, the diffraction effects are raised in the optical system, when we operate at the wavelength of 1550nm. This is because of the line of sight stabilization in space domain. In this paper, we designed various cassgrains which operates at aforementioned wavelength to overcome those effects. In addition, we analyzed the design as a linear beam expander to obtain a magnified beam for a long haul free space transmission. Then the beam quality is evaluated through Point Spread Function (PSF), Modulation Transfer Function (MTF), Wave front, Distortion, Energy plots & third order aberrations. Finally, we study the designs of Schmidt and Houghton type cassgrains out of which one is opted for Inter-satellite Laser communication.

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Applied Mechanics and Mechanical Engineering IV

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Periodical:

Applied Mechanics and Materials (Volume 459)

Pages:

262-266

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.459.262

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Online since:

October 2013

Authors:

K.Shantha Lakshmi*, R. Sudhakar

Keywords:

Aberrations, Houghton Cassgrain, MTF, PSF, Reflective Telescopes, Schmidt Cassgrain, Wave Front

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