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High Contrast All-Optical Dual Wavelength Switching of Femtosecond Pulses in Soft Glass Dual-Core Optical Fiber
- Source :
- Journal of Lightwave Technology. 39:5111-5117
- Publication Year :
- 2021
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2021.
-
Abstract
- All-optical switching of 75 fs pulses centered at 1560 nm, driven by 270 fs, 1030 nm pulses in a dual-core optical fiber exhibiting high index contrast is presented. The fiber is made of a thermally matched pair of lead silicate and borosilicate glasses used as core and cladding material, respectively. The novel switching approach is based on nonlinear balancing of dual-core asymmetry, by control pulse intensity induced group velocity reduction of the fast fiber channel. Due to the fiber core made of soft glass with high nonlinearity high switching contrast exceeding 20 dB is reached by using control pulses of only few nanojoule energy. The optimum fiber length is 14 mm, which closely match the calculated coupling length at the signal wavelength. The results express significant progress in comparison to similar studies based on self-switching of solitonic pulses in dual-core fibers and represent high application potential.
- Subjects :
- Materials science
Optical fiber
business.industry
Cross-phase modulation
Physics::Optics
Nonlinear optics
02 engineering and technology
010402 general chemistry
021001 nanoscience & nanotechnology
Cladding (fiber optics)
01 natural sciences
Optical switch
Atomic and Molecular Physics, and Optics
0104 chemical sciences
law.invention
Core (optical fiber)
law
Femtosecond
Optoelectronics
Fiber
0210 nano-technology
business
Subjects
Details
- ISSN :
- 15582213 and 07338724
- Volume :
- 39
- Database :
- OpenAIRE
- Journal :
- Journal of Lightwave Technology
- Accession number :
- edsair.doi...........fb7bc524a7add2f95839b46c7ea3d9e2