Permanent optical fiber cable for Prime Focus Spectrograph and Subaru telescope "Cable B"

Antonio Cesar de Oliveira Sr.; Ligia Souza de Oliveira Sr.; Décio Ferreira Sr.; Lucas Souza Marrara Sr.; Leandro Henrique dos Santos Sr.; Josimar Aparecido Rosa Sr.; Rodrigo Pedro de Almeida Jr.; Ricardo Luciano Costa Jr.; Orlando Verducci Sr.; James E. Gunn Sr.; Graham Murray Sr.; Yuki Moritani Sr.; Naoyuki Tamura Sr.; Naruhisa Takato Sr.; Tomonori Tamura Sr.; Atsushi Shimono Sr.; Laerte Sodré Junior Jr.; Bruno Castilho Sr.

doi:10.1117/12.2312325

9 July 2018 Permanent optical fiber cable for Prime Focus Spectrograph and Subaru telescope "Cable B"

Antonio Cesar de Oliveira Sr., Ligia Souza de Oliveira Sr., Décio Ferreira Sr., Lucas Souza Marrara Sr., Leandro Henrique dos Santos Sr., Josimar Aparecido Rosa Sr., Rodrigo Pedro de Almeida Jr., Ricardo Luciano Costa Jr., Orlando Verducci Sr., James E. Gunn Sr., Graham Murray Sr., Yuki Moritani Sr., Naoyuki Tamura Sr., Naruhisa Takato Sr., Tomonori Tamura Sr., Atsushi Shimono Sr., Laerte Sodré Junior Jr., Bruno Castilho Sr.

Author Affiliations +

Proceedings Volume 10702, Ground-based and Airborne Instrumentation for Astronomy VII; 107027T (2018) https://doi.org/10.1117/12.2312325
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

FOCCoS, "Fiber Optical Cable and Connector System", is a part of subsystem of Prime Focus Spectrograph”, for Subaru telescope. FOCCoS are divided in 3 different segments called Cable A, Cable B and Cable C. Multi-fibers connectors assure precise connection among all optical fibers of the segments, providing flexibility for instrument changes. Cable B is permanently installed at Subaru Telescope structure starting in a Connector Bench device and finishing at another different Connector Bench device. By this way, Cable B represent a link between the light entrance, from Cable C, and the light delivery, to Cable A. This cable will be routed to minimize the compression, torsion and bending caused by the cable weight and telescope motion. In this work, we present the current stage of development of Cable B as well as the detailing of its structures. In addition, we present the optical fiber cabling methodology and the test procedures involved in its characterization. A prototype of Cable B was constructed to help us to better understanding the real situation and was tested at Subaru Telescope.

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Antonio Cesar de Oliveira Sr., Ligia Souza de Oliveira Sr., Décio Ferreira Sr., Lucas Souza Marrara Sr., Leandro Henrique dos Santos Sr., Josimar Aparecido Rosa Sr., Rodrigo Pedro de Almeida Jr., Ricardo Luciano Costa Jr., Orlando Verducci Sr., James E. Gunn Sr., Graham Murray Sr., Yuki Moritani Sr., Naoyuki Tamura Sr., Naruhisa Takato Sr., Tomonori Tamura Sr., Atsushi Shimono Sr., Laerte Sodré Junior Jr., and Bruno Castilho Sr. "Permanent optical fiber cable for Prime Focus Spectrograph and Subaru telescope "Cable B"", Proc. SPIE 10702, Ground-based and Airborne Instrumentation for Astronomy VII, 107027T (9 July 2018); https://doi.org/10.1117/12.2312325

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KEYWORDS

Connectors

Telescopes

Optical fibers

Prototyping

Spectrographs

Polishing

Optical fiber cables

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