Experimental demonstration of bidirectional light transfer in adiabatic waveguide structures.
- Publisher:
- Optical Society of America
- Publication Type:
- Journal Article
- Citation:
- Optics Letters, 2016, 41, (22), pp. 5278-5281
- Issue Date:
- 2016-11-15
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18942126_7475944510005671.pdf | Published version | 1.38 MB |
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We propose and demonstrate a novel type of optical integrated structure consisting of three adiabatically coupled waveguides arranged in an N-shaped geometry. Unlike conventional adiabatic three-waveguide couplers mimicking the stimulated Raman adiabatic passage process which utilize solely the counter-intuitive coupling and, thus, operate only in one direction, our structure achieves complete bidirectional light transfer between two waveguides through the counter-intuitive and intuitive coupling in either direction over a wide wavelength range. Moreover, the light transfer through the intuitive coupling is more efficient and robust than through the counter-intuitive coupling.
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