Abstract
A distributed birefringence measurement of a polarization-maintaining fiber (PMF) can be realized by using a Brillouin dynamic grating (BDG). However, the pump depletion decreases the intensity of the BDG along the PMF and limits the measurement range to a few hundred meters. We demonstrate a distributed birefringence measurement of the PMF with an extended range to 3030 m based on an enhanced BDG with an 18.5-ns pump-1 pulse, frequency-upshifted continuous-wave pump-2, and 4-ns read pulse (spatial resolution: 40 cm). The enhanced BDG is promising to characterize the design of a fiber coil to improve the fiber optic gyroscope performance.
| Original language | English |
|---|---|
| Article number | 9164946 |
| Journal | IEEE Photonics Journal |
| Volume | 12 |
| Issue number | 4 |
| DOIs | |
| State | Published - Aug 2020 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2009-2012 IEEE.
Funding
Manuscript received June 2, 2020; revised July 18, 2020; accepted August 6, 2020. Date of publication August 11, 2020; date of current version August 21, 2020. This work was supported in part by the National Key Scientific Instrument and Equipment Development Project of China under Grant 2017YFF0108700, and in part by the National Natural Science Foundation of China under Grants 61575052 and 61975045. Corresponding authors: Taofei Jiang. (e-mail: [email protected])
| Funders | Funder number |
|---|---|
| National Natural Science Foundation of China | 61975045, 61575052 |
| National Key Scientific Instrument and Equipment Development Projects of China | 2017YFF0108700 |
Keywords
- Brillouin dynamic grating
- Brillouin optical fiber sensor
- birefringence measurement
- polarization maintaining fiber