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Parametric study of wavelength demultiplexers designed via objective-first algorithm
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Paper Abstract

We demonstrate efficient and compact 1xN wavelength-demultiplexing by using objective-first inverse design algorithm. Ultra-high device performances were achieved for the certain designs of 1x2, 1x3, and 1x4 demultiplexers with very small footprints at the orders of a few microns. The presented 1x2, 1x3, and 1x4 devices operate at the wavelength sets of 1.31μm, 1.55 μm; 1.31 μm, 1.47 μm, 1.55 μm, and; 1.31 μm, 1.39 μm, 1.47 μm, 1.55 μm, respectively. The transmission efficiencies at the corresponding target wavelengths of each vertically or horizontally aligned channels were obtained mostly to be near-unity together with very small crosstalk ranges of around 0.01% - 1.2%. The inverse design approach allowing the implementation of more than four output channels together with the novel functionalities will pave the way for compact and manufacturable 1xN couplers, which is of ultimate significance for integrated photonics.

Paper Details

Date Published: 19 September 2018
PDF: 8 pages
Proc. SPIE 10720, Nanophotonic Materials XV, 1072004 (19 September 2018); doi: 10.1117/12.2320469
Show Author Affiliations
Yusuf A. Yılmaz, TOBB ETÜ (Turkey)
Ahmet M. Alpkılıç, TOBB ETÜ (Turkey)
Aydan Yeltik, TOBB ETÜ (Turkey)
Döne Yılmaz, TOBB ETÜ (Turkey)
Mediha Tutgun, TOBB ETÜ (Turkey)
Hamza Kurt, TOBB ETÜ (Turkey)

Published in SPIE Proceedings Vol. 10720:
Nanophotonic Materials XV
Stefano Cabrini; Gilles Lérondel; Adam M. Schwartzberg; Taleb Mokari, Editor(s)

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