Abstract
This study demonstrates the use of photonic crystal directional couplers to separate light of wavelengths 1.31 and 1.55μm. The photonic crystal structure consists of InAlGaAs nano-rods arranged in square lattice. The coupling length of the light in the directional coupler at a wavelength of 1.31pm was designed to be four times greater than that at 1.55μm. This behavior helps in designing devices to split the two wavelengths. The devices are fabricated by e-beam lithography and conventional photolithography. The measurement results confirm that 1.31μm/1.55μm directional couplers can be realized in PC structures formed by nano-rods.
Original language | English |
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Pages (from-to) | 38-43 |
Number of pages | 6 |
Journal | Optics Express |
Volume | 13 |
Issue number | 1 |
DOIs | |
State | Published - 01 2005 |
Externally published | Yes |