Multi-fibers connectors systems for FOCCoS-PFS-Subaru

Antonio Cesar de Oliveira; Ligia Souza de Oliveira; Lucas Souza Marrara; Leandro Henrique dos Santos; Marcio Vital de Arruda; Jesulino Bispo dos Santos; Décio Ferreira; Josimar Aparecido Rosa; Rodrigo de Paiva Vilaça; Laerte Sodré Jr.; Claudia Mendes de Oliveira; James E. Gunn

doi:10.1117/12.2055888

18 July 2014 Multi-fibers connectors systems for FOCCoS-PFS-Subaru

Antonio Cesar de Oliveira, Ligia Souza de Oliveira, Lucas Souza Marrara, Leandro Henrique dos Santos, Marcio Vital de Arruda, Jesulino Bispo dos Santos, Décio Ferreira, Josimar Aparecido Rosa, Rodrigo de Paiva Vilaça, Laerte Sodré Jr., Claudia Mendes de Oliveira, James E. Gunn

Author Affiliations +

Proceedings Volume 9151, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation; 915160 (2014) https://doi.org/10.1117/12.2055888
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

The Fiber Optical Cable and Connector System (FOCCoS), provides optical connection between 2400 positioners and a set of spectrographs through optical fibers cables as part of PFS instrument for Subaru telescope. The optical fiber cable will be segmented in 3 parts along the route, cable A, cable B and cable C, connected by a set of multi-fiber connectors. The company USCONEC produces the multi-fiber connector under study. The USCONEC 32F model can connect 32 optical fibers in a 4 x 8 matrix arrangement. The ferrules are made of a durable composite, Polyphenylene Sulfide (PPS) based thermoplastic. The connections are held in place by a push-on/pull-off latch, and the connector can also be distinguished by a pair of metal guide pins that protrude from the front of the connector. Two fibers per connector will be used for monitoring the connection procedure. It was found to be easy to polish and it is small enough to be mounted in groups. Highly multiplexed instruments like PFS require a fiber connector system that can deliver excellent optical performance and reliability. PFS requires two different types of structures to organize the connectors. The Tower Connector system, with 80 multi-fiber connectors, will be a group of connectors for connecting cable B (Telescope Structure) with cable C (Positioners Plate). The Gang Connector system is a group of 8 gang connectors, each one with 12 multi-fibers connectors, for connecting cable B (Telescope Structure) with cable A (Spectrograph). The bench tests with these connector systems and the chosen fibers should measure the throughput of light and the stability after many connections and disconnections. In this paper we describe tests and procedures to evaluate the throughput and FRD increment. The lifetime of the ferrules is also in evaluation.

Citation Download Citation

Antonio Cesar de Oliveira, Ligia Souza de Oliveira, Lucas Souza Marrara, Leandro Henrique dos Santos, Marcio Vital de Arruda, Jesulino Bispo dos Santos, Décio Ferreira, Josimar Aparecido Rosa, Rodrigo de Paiva Vilaça, Laerte Sodré Jr., Claudia Mendes de Oliveira, and James E. Gunn "Multi-fibers connectors systems for FOCCoS-PFS-Subaru", Proc. SPIE 9151, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation, 915160 (18 July 2014); https://doi.org/10.1117/12.2055888

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available