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Proceedings Paper

Wideband Analog Fiber Optic Signal Link For Use In The Space/Radiation Simulator Environment
Author(s): J. Blackburn; J . Vanderwall; R . Gilbert; V. Holliday
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Paper Abstract

The report describes a wideband linear response fiber optic transmission link designed to telemeter signals from a system being irradiated in a space/radiation simulator. The environment is severe: the transmitter must withstand an x-ray pulse delivering 109 rad(Si)/sec (surface dose rate), beams of 300 - 1000 KeV electrons, hard vacuum, and liquid nitrogen temperatures without degradation or even momentary upset. Radiation hardness is achieved by a combination of circuit design and high-Z shielding, including an optical fiber shield made of non-conducting lead-loaded. polyethylene. Special heat. conducting and insulating measures are employed to maintain temperature. The transmitter measures 15 x 8.5 x 9.5 am and operates on self-contained batteries. Signal bandwidth is greater than 10 KHz to 400 MHz with approximately 35 dB, of dynamic range. Signal inputs ranging from one millivolt to several volts are accommodated; four single-or double-ended inputs are provided, with remote selection. The single-fiber coupled remote control also allows adjusting input. attenuation, power and calibrator control, and verification of transmitter function. The single-mode laser used as the high frequency optical source is microwave dither-blased1 to reduce modal noise.

Paper Details

Date Published: 22 January 1982
PDF: 6 pages
Proc. SPIE 0296, Fiber Optics in Adverse Environments I, (22 January 1982); doi: 10.1117/12.932450
Show Author Affiliations
J. Blackburn, US. Army Electronics Research and Development Command (United States)
J . Vanderwall, U.S. Army Electronics Research and Development Command (United States)
R . Gilbert, Army Electronics Research and Development Command (United States)
V. Holliday, Army Electronics Research and Development Command (United States)


Published in SPIE Proceedings Vol. 0296:
Fiber Optics in Adverse Environments I
Peter B. Lyons, Editor(s)

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