High-efficiency broadband fiber-optic mechanical intermodal converter
| Autor: | Kwang Jo Lee, Ilhwan Kim, Yung Kim, Donghwa Lee, Kyung Jun Park |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Optical fiber Materials science Coupling strength business.industry Physics::Optics General Physics and Astronomy 02 engineering and technology Grating 021001 nanoscience & nanotechnology 01 natural sciences law.invention Coupling (electronics) law Long period 0103 physical sciences Broadband Optoelectronics General Materials Science Fiber 0210 nano-technology business |
| Zdroj: | Current Applied Physics. 20:1103-1109 |
| ISSN: | 1567-1739 |
| DOI: | 10.1016/j.cap.2020.07.010 |
| Popis: | We demonstrate a highly efficient, broadband fiber-optic intermodal converter. The technique relies on a long period grating mechanically induced in a two-mode fiber. A compact, portable apparatus was designed and fabricated, where period-variable metallic corrugation is implemented to form periodic micro-bends along the fiber. The coupling strength between the interacting fiber modes and the grating period can be tuned continuously and individually using two control knobs in the apparatus. Experimental results show that the complete coupling between the LP01 and LP11 modes is achieved, which is confirmed by an observed over-coupling while increasing the grating strength. For the short fiber length of |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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