Design of a high-birefringence two-core photonic crystal fiber for simultaneous measurement of pressure and temperature

Chuang Wu, Zi Wei Feng, Bai Ou Guan, Hwa Yaw Tam

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

We propose and design a high-birefringence two-core photonic crystal fiber for simultaneous measurement of pressure and temperature. One core is centered, while the other is off-center. Both cores are made non-circular by properly modifying the sizes of some air-holes surrounding them. This introduces geometric modal birefringence to the fiber. When a broadband light launches into the centered core and transmits for a few centimeters, the output spectrum is sinusoid-like due to the intermodal coupling of the supermodes guided by the two cores. For x-polarized input light, we find it has a pressure sensitivity of -21.7 pm/MPa and a temperature sensitivity of 11.6 pm/°C; for y-polarized input light, we find it has a pressure sensitivity of 18.0 pm/MPa and a temperature sensitivity of 10.7 pm/°C. Hence, simultaneous measurement of pressure and temperature can be achieved by using a matrix method.
Original languageEnglish
Title of host publicationFifth Asia-Pacific Optical Sensors Conference, APOS 2015
PublisherSPIE
Volume9655
ISBN (Electronic)9781628418651
DOIs
Publication statusPublished - 1 Jan 2015
Event5th Asia-Pacific Optical Sensors Conference, APOS 2015 - Lotte City Hotel Jeju, Jeju, Korea, Republic of
Duration: 20 May 201522 May 2015

Conference

Conference5th Asia-Pacific Optical Sensors Conference, APOS 2015
CountryKorea, Republic of
CityJeju
Period20/05/1522/05/15

Keywords

  • High birefringence
  • photonic crystal fiber
  • pressure
  • simultaneous measurement
  • temperature
  • two-core fiber

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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