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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 25 — Sep. 1, 2011
  • pp: E80–E85

Evaluation of the performance of high phosphorous with germanium codoped multimode optical fiber for use as a radiation sensor at low dose rates

Sudipta Ghosh, Shyamal Das, Mukul C. Paul, Kamal Dasgupta, Dinesh Bohra, Himat S. Chaudhary, Lalit Panwar, Pradeep K. Bhatnagar, and Shyam Govind Vaijapurkar  »View Author Affiliations


Applied Optics, Vol. 50, Issue 25, pp. E80-E85 (2011)
http://dx.doi.org/10.1364/AO.50.000E80


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Abstract

We propose a GeO 2 P 2 O 5 -codoped step index multimode (SIMM) fiber having a core diameter of around 50 μm with numerical aperture of around 0.21–0.22. The proposed SIMM fiber shows excellent linear radiation response behavior with sensitivity of around 0.69 0.97 dB / m / 100 rad at a 505 nm wavelength within the dose rate range of 10 100 rad / h , as well as very low recovery at room temperature using a Co 60 gamma radiation source. This enables its practical application in fiber optic personal dosimeters for measurement of low dose gamma radiation.

© 2011 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2290) Fiber optics and optical communications : Fiber materials
(160.2220) Materials : Defect-center materials
(280.0280) Remote sensing and sensors : Remote sensing and sensors

History
Original Manuscript: March 14, 2011
Revised Manuscript: June 7, 2011
Manuscript Accepted: June 10, 2011
Published: July 11, 2011

Citation
Sudipta Ghosh, Shyamal Das, Mukul C. Paul, Kamal Dasgupta, Dinesh Bohra, Himat S. Chaudhary, Lalit Panwar, Pradeep K. Bhatnagar, and Shyam Govind Vaijapurkar, "Evaluation of the performance of high phosphorous with germanium codoped multimode optical fiber for use as a radiation sensor at low dose rates," Appl. Opt. 50, E80-E85 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-25-E80

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