V.R., B. (2026) “Integrated 25 GHz and 50 GHz spectral line width dense wavelength division demultiplexer on single photonic crystal chip”, Opto-Electronics Review, 26(4), pp. 285–295. Available at: https://wydawnictwo.pan.pl/index.php/opelre/article/view/701 (Accessed: 14 May 2026).