Abstract
A gap fiber Bragg grating (g-FBG) is fabricated by cutting a uniform FBG in the middle to introduce a small air gap between the two sections. Numerical and experimental investigations show that the g-FBG has the characteristics of both a phase shifted FBG and a Fizeau interferometer. The influence of the air-gap shift longitudinally or transversely with respect to the fiber central axis and temperature to g-FBG's spectrums are investigated with numerical simulation and experiments, and the mathematic models are made. Based on g-FBG's different sensitivity to gap width and temperature, a micro-gap and temperature simultaneous measurement sensor was demonstrated. And a g-FBG based tunable fiber ring laser with a narrow line-width is demonstrated.
Original language | English |
---|---|
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 |
---|---|
Country | Korea, Republic of |
City | Jeju |
Period | 20/05/15 → 22/05/15 |
Keywords
- Fizeau interferometer
- gap fiber Bragg gratings
- phase shift FBG
- sensor
- tunable fiber laser
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering