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Gain Enhancement of Single-Mode Cr-Doped Core Fibers by Online Growth System
- Source :
- IEEE Photonics Technology Letters. 28:2098-2101
- Publication Year :
- 2016
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2016.
-
Abstract
- Gain enhancement of single-mode Cr-doped crystalline core fiber (SMCDCCF) with longer fiber length fabricated by online laser-heated pedestal growth (LHPG) technique is demonstrated. In comparison with the SMCDCCF fabricated without online growth, the online technique enables real-time monitoring and controlling small molten zone in the LHPG to achieve longer length with better uniformity and smaller core diameter of the SMCDCCFs. The SMCDCCF exhibits a length of 10.6 cm, a core diameter of 25 mu m, and a V-value of 2.40, which confirms the LP01 single-mode operation by the far-field pattern measurement. A 3.9-dB gross gain and a 1.9-dB net gain of the SMCDCCF at the wavelength of 1400 nm were obtained. The gross and net gains are the highest yet reported of the SMCDCCFs. Further development on higher gain of the SMCDCCF may be functioned the SMCDCCF as a broadband fiber amplifier for use in the next-generation fiber transmission systems.
- Subjects :
- All-silica fiber
Optical fiber
Materials science
business.industry
Plastic-clad silica fiber
02 engineering and technology
Graded-index fiber
Atomic and Molecular Physics, and Optics
Electronic, Optical and Magnetic Materials
law.invention
Mode field diameter
020210 optoelectronics & photonics
Optics
law
Net gain
Fiber laser
0202 electrical engineering, electronic engineering, information engineering
Dispersion-shifted fiber
Electrical and Electronic Engineering
business
Subjects
Details
- ISSN :
- 19410174 and 10411135
- Volume :
- 28
- Database :
- OpenAIRE
- Journal :
- IEEE Photonics Technology Letters
- Accession number :
- edsair.doi...........aa0a3de7ee07da344f3193ba2e86d419