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Proceedings Paper

LAST: Laser Array Space Telescope
Author(s): Jonathan A. Madajian; Alexander Cohen; Rebecca Hwang; Chase Bishman; Rachel Reyes; Miguel Bautista; Ryan Tsukamoto; Brandon Pon; Dylan Vanmali; Xu Xu; Nicholas Rommelfanger; Ian Ho; Lucas Lin; Michael Prazak; Patrick Ruehl; Travis Brashears; Nic Rupert; Philip Lubin
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Paper Abstract

A phased array operates by modulating the phases of several signals, allowing electronic control over the locations that these signals interfere constructively or destructively, allowing the beam to be steered. A space-based laser phased array, called the Directed Energy System for Targeting of Asteroids and exploRation (DE-STAR) has previously been posited by our group for a number of uses, from planetary defense to relativistic propulsion of small probes. Here we propose using the same basic system topology as a receiver rather than a transmitter. All of the components in the system, excluding the laser, are bidirectional. Rather than each elements transmitting laser light, they would instead receive light, which will then be combined to create an interference pattern that can be imaged onto a focal plane. The Laser Array Space Telescope (LAST) uses most of the same components and metrology as DE-STAR and could thus be integrated into a singular system, allowing both transmit and receive modes. This paper discusses the possible applications of this system from laser communications to astrophysics.

Paper Details

Date Published: 19 September 2016
PDF: 9 pages
Proc. SPIE 9981, Planetary Defense and Space Environment Applications, 99810B (19 September 2016); doi: 10.1117/12.2238453
Show Author Affiliations
Jonathan A. Madajian, Univ. of California, Santa Barbara (United States)
Alexander Cohen, Univ. of California, Santa Barbara (United States)
Rebecca Hwang, Univ. of California, Santa Barbara (United States)
Chase Bishman, Univ. of California, Santa Barbara (United States)
Rachel Reyes, Univ. of California, Santa Barbara (United States)
Miguel Bautista, Univ. of California, Santa Barbara (United States)
Ryan Tsukamoto, Univ. of California, Santa Barbara (United States)
Brandon Pon, Univ. of California, Santa Barbara (United States)
Dylan Vanmali, Univ. of California, Santa Barbara (United States)
Xu Xu, Univ. of California, Santa Barbara (United States)
Nicholas Rommelfanger, Univ. of California, Santa Barbara (United States)
Ian Ho, Hong Kong International School (Hong Kong, China)
Lucas Lin, Univ. of California, Santa Barbara (United States)
Michael Prazak, Univ. of California, Santa Barbara (United States)
Patrick Ruehl, Univ. of California, Santa Barbara (United States)
Travis Brashears, Univ. of California, Santa Barbara (United States)
Nic Rupert, Univ. of California, Santa Barbara (United States)
Philip Lubin, Univ. of California, Santa Barbara (United States)


Published in SPIE Proceedings Vol. 9981:
Planetary Defense and Space Environment Applications
Gary B. Hughes, Editor(s)

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