Abstract
We propose a rectangular liquid-infiltrated dual-core polymer optical fiber (POF) for short-range communication systems by the beam propagation method (BPM). The POF multi/demultiplexer (MUX/DEMUX) at the wavelengths of 0.52/0.65-μm, 0.57/0.65-μm, and 0.52/0.57-μm are devised. The simulation results demonstrate that the ultrashort length of three ultrashort POF couplers are 183.6 μm, 288 μm, and 799.5 μm. Compared with the conventional optical fiber couplers, these results could have significant applications in the miniaturization of optical devices for visible light communication.
Highlights
In recent years, with the rapid expansion of optical communication technology, application demands of users for optical transmission networks and systems are growing exponentially
We can clearly see that coupling length is decreased when air-filling ratio d/Λ is increased for the same value of period Λ
Based on the above considerations, we decided to use the y-polarization for the polymer optical fiber couplers
Summary
With the rapid expansion of optical communication technology, application demands of users for optical transmission networks and systems are growing exponentially. Wavelength division multiplexing (WDM) is a key technology in advanced optical communication networks. The use of WDM technology significantly increases the capacity of the existing optical communication networks without increasing the number of fibers, and possesses advantages in flexible services, network provision, and network management [9]. The wavelength division multi/demultiplexer (MUX/DEMUX) is an important passive component in the WDM system, which splits/combines lights with different wavelengths into different outputs [10]. There are very few wavelength division MUX/DEMUXs in the visible wavelengths. The design and application of such optical devices in the visible wavelengths are of great significance to develop the visible short-distance communications systems
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