An All-Optical Fiber Sensor Fabricated by a Femtosecond Laser for Temperature Sensing
An all-optical fiber temperature sensor fabricated by a femtosecond (fs) laser is proposed in this study. The fiber sensor is of a very simple structure: a trench that overlaps with the fiber core, which makes a two light paths structure inline the fiber where one is the remained fiber core and the other is the trench. Then, the two transmitted beams interfere with each other and form a Mach-Zehnder interferometer (MZI). The sensor sensitivity is 55 pm/°C at temperatures in range of 30–220 °C with a step of 10 °C. The fringe visibility of the all-optical fiber sensor is greater than 30 dB at 150 °C for interference dip wavelengths, and the attenuation band has a 3 dB line-width of about 0.8 nm.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
Document Type: Research Article
Publication date: 2011-10-01
More about this publication?
- The growing interest and activity in the field of sensor technologies requires a forum for rapid dissemination of important results: Sensor Letters is that forum. Sensor Letters offers scientists, engineers and medical experts timely, peer-reviewed research on sensor science and technology of the highest quality. Sensor Letters publish original rapid communications, full papers and timely state-of-the-art reviews encompassing the fundamental and applied research on sensor science and technology in all fields of science, engineering, and medicine. Highest priority will be given to short communications reporting important new scientific and technological findings.
- Editorial Board
- Information for Authors
- Subscribe to this Title
- Terms & Conditions
- Ingenta Connect is not responsible for the content or availability of external websites