Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 8529235 |
| Seiten (von - bis) | 2175-2178 |
| Seitenumfang | 4 |
| Fachzeitschrift | IEEE photonics technology letters |
| Jahrgang | 30 |
| Ausgabenummer | 24 |
| Publikationsstatus | Veröffentlicht - 15 Dez. 2018 |
| Extern publiziert | Ja |
Abstract
We demonstrate the formation of Kerr-induced transient long period grating in a standard single-mode fiber (SMF28) using sub-nanosecond laser pulses, which can be used to realize an efficient all-optical mode conversion and temperature sensing. The fiber supports $LP-{01}$ and $LP-{11}$ spatial modes at 1064-nm wavelength. The beating between two guided modes induces refractive index grating exploiting the Kerr effect. The probe beam co-propagating with the pump at the same wavelength but with different polarization exhibits efficient mode conversion efficiency from $LP-{01}$ to $LP-{11}$ mode. Temperature sensitivity is measured owing to the change in mode conversion efficiency due to the shift in resonant peak wavelength with the increase in temperature. The change in temperature is manifested by the change in spectral power of probe beam at the output. The experimental result demonstrates an average temperature sensitivity of 0.15 Watt/°C. The transient nature of the grating with high sensitivity makes our approach unique from the existing results and can open a route for potential applications.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Elektronische, optische und magnetische Materialien
- Physik und Astronomie (insg.)
- Atom- und Molekularphysik sowie Optik
- Ingenieurwesen (insg.)
- Elektrotechnik und Elektronik
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in: IEEE photonics technology letters, Jahrgang 30, Nr. 24, 8529235, 15.12.2018, S. 2175-2178.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - All-Optical Mode Conversion and Temperature Sensing via Transient Grating in Step-Index Fiber
AU - Mondal, Partha
AU - Haldar, Raktim
AU - Mishra, Vishwatosh
AU - Varshney, Shailendra K.
PY - 2018/12/15
Y1 - 2018/12/15
N2 - We demonstrate the formation of Kerr-induced transient long period grating in a standard single-mode fiber (SMF28) using sub-nanosecond laser pulses, which can be used to realize an efficient all-optical mode conversion and temperature sensing. The fiber supports $LP-{01}$ and $LP-{11}$ spatial modes at 1064-nm wavelength. The beating between two guided modes induces refractive index grating exploiting the Kerr effect. The probe beam co-propagating with the pump at the same wavelength but with different polarization exhibits efficient mode conversion efficiency from $LP-{01}$ to $LP-{11}$ mode. Temperature sensitivity is measured owing to the change in mode conversion efficiency due to the shift in resonant peak wavelength with the increase in temperature. The change in temperature is manifested by the change in spectral power of probe beam at the output. The experimental result demonstrates an average temperature sensitivity of 0.15 Watt/°C. The transient nature of the grating with high sensitivity makes our approach unique from the existing results and can open a route for potential applications.
AB - We demonstrate the formation of Kerr-induced transient long period grating in a standard single-mode fiber (SMF28) using sub-nanosecond laser pulses, which can be used to realize an efficient all-optical mode conversion and temperature sensing. The fiber supports $LP-{01}$ and $LP-{11}$ spatial modes at 1064-nm wavelength. The beating between two guided modes induces refractive index grating exploiting the Kerr effect. The probe beam co-propagating with the pump at the same wavelength but with different polarization exhibits efficient mode conversion efficiency from $LP-{01}$ to $LP-{11}$ mode. Temperature sensitivity is measured owing to the change in mode conversion efficiency due to the shift in resonant peak wavelength with the increase in temperature. The change in temperature is manifested by the change in spectral power of probe beam at the output. The experimental result demonstrates an average temperature sensitivity of 0.15 Watt/°C. The transient nature of the grating with high sensitivity makes our approach unique from the existing results and can open a route for potential applications.
KW - fiber mode coupling
KW - Fiber nonlinear optics
KW - optical sensing
UR - http://www.scopus.com/inward/record.url?scp=85056307214&partnerID=8YFLogxK
U2 - 10.1109/LPT.2018.2879975
DO - 10.1109/LPT.2018.2879975
M3 - Article
AN - SCOPUS:85056307214
VL - 30
SP - 2175
EP - 2178
JO - IEEE photonics technology letters
JF - IEEE photonics technology letters
SN - 1041-1135
IS - 24
M1 - 8529235
ER -