Simple equation to estimate the output power of an evanescent field absorption-based fiber sensor

Saracoglu O., Ozsoy S.

OPTICAL ENGINEERING, cilt.41, sa.3, ss.598-600, 2002 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 41 Sayı: 3
  • Basım Tarihi: 2002
  • Doi Numarası: 10.1117/1.1431254
  • Dergi Adı: OPTICAL ENGINEERING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.598-600
  • Anahtar Kelimeler: fiber optic sensors, evanescent field absorption, weakly guiding solution, concentration sensing
  • Erciyes Üniversitesi Adresli: Evet

Özet

The behavior of an evanescent field sensor is important for design purposes, This work gives an approximate and simple equation to estimate the absorption of light in an optical fiber with lossy cladding. The formula is based on the weakly guiding approximation and estimates the output power fraction of the sensor in terms of the fiber and the surrounding parameters. The formula is then related to the concentration of the surrounding medium. (C) 2002 Society of Photo-Optical Instrumentation Engineers.