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 language | English |
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Title of host publication | Fifth Asia-Pacific Optical Sensors Conference, APOS 2015 |
Publisher | SPIE |
Volume | 9655 |
ISBN (Electronic) | 9781628418651 |
DOIs | |
Publication status | Published - 1 Jan 2015 |
Event | 5th Asia-Pacific Optical Sensors Conference, APOS 2015 - Lotte City Hotel Jeju, Jeju, Korea, Republic of Duration: 20 May 2015 → 22 May 2015 |
Conference
Conference | 5th Asia-Pacific Optical Sensors Conference, APOS 2015 |
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Country/Territory | Korea, Republic of |
City | Jeju |
Period | 20/05/15 → 22/05/15 |
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