Shim, SI Kim, KT Kim, KM Kim, HD Kim, SE Park, JH Woo, DH 2024-01-21T12:40:44Z 2024-01-21T12:40:44Z 2021-09-05 2001-03 0374-4884 https://pubs.kist.re.kr/handle/201004/140666 An optical coupler was designed and fabricated based on multimode interference (MMI) within the InP/InGaAsP Multiple Quantum Well (MQW) structure for use at the 1.55-mum wavelength. A theoretical analysis of MMI is presented by using the beam propagation method (BPM). The MMI section was designed to be a rib-type waveguide by using the effective refractive index method. A 2 x 2 optical coupler, which has a rib-type waveguide for the MMI section, was fabricated and tested. It showed a good self-imaging property, which is the characteristic of the MMI effect. English KOREAN PHYSICAL SOC REFRACTIVE-INDEX INP InP/InGaAsP multiple quantum well multimode interference coupler Article 1 JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.38, no.3, pp.191 - 194 JOURNAL OF THE KOREAN PHYSICAL SOCIETY 38 3 191 194 scie scopus kci other 000167502800006 2-s2.0-0035532368 Physics, Multidisciplinary Physics Article REFRACTIVE-INDEX INP MMI