Optical fiber waveguides may be subjected to unique adverse environments onboard spacecraft, including wide temperature ranges and low dose rate radiation exposures. Since fiber reliability is essential, an accelerated lifetest has been designed to simulate deployment on the Space Station. The initial induced losses following exposure at -150 C are much lower in the fibers with pure than in those with doped silica cores. Good long term recovery is evident at this low temperature in fibers which do not contain P provided light is being transmitted in the waveguide since photobleaching is the dominant recovery mechanism in both types of fiber at -150 C. Except for the P-doped waveguides, the worst-case incremental losses are extrapolated to be < 10 dB/km for a 10 year, 1 rad/day exposure at -150 C with a -20 dBm signal in the fiber. Thus, optical fibers are attractive for use in spacecraft exposed to low dose rate natural space radiation environments.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Optical Fiber Waveguides for Spacecraft Applications


    Contributors:

    Conference:

    Fiber Optics in Adverse Environments III ; 1986 ; Cambridge,MA,United States


    Published in:

    Publication date :

    1987-02-04





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Optical fiber sensors for spacecraft: applications and challenges

    Friebele, Edward J. / Askins, Charles G. / Miller, Gary A. et al. | SPIE | 2004


    Effect of distortion on optical-fiber waveguides

    Kumar, S. / Singh, V. | British Library Online Contents | 2012


    Optical fiber sensors for spacecraft: applications and challenges (Keynote Paper) [5554-17]

    Friebele, E. J. / Askins, C. G. / Miller, G. A. et al. | British Library Conference Proceedings | 2004


    Polymer Waveguides for Optical Interconnect Applications

    IEEE / Lasers and Electro-Optics Society | British Library Conference Proceedings | 1995


    Elliptical fiber waveguides

    Dyott, Richard B. | TIBKAT | 1995