CHOI, WJ LEE, JI KANG, KN HONG, SC CHO, KM 2024-01-21T22:12:54Z 2024-01-21T22:12:54Z 2021-09-02 1993-12 0374-4884 https://pubs.kist.re.kr/handle/201004/145944 Traveling wave directional coupler-type electro-optic modulators based on GaAs Schottky contact microstrip lines are modeled and analyzed. The microwave propagation including losses in the structure is described by a simple quasi-TEM model. The lightwave propagation is calculated numerically including multiple layer effects as well as Schottky metal cladding effects. A simple figure of merit is used to compare and optimize structures. The results show that the effects of microwave attenuation dominate those of velocity and impedance mismatching at more than 1 GHz and that the device performance is strongly dependent on the operating voltage. English KOREAN PHYSICAL SOC ELECTROOPTIC MODULATORS TRANSMISSION-LINE ANALYSIS OF GAAS SCHOTTKY CONTACT TRAVELING-WAVE OPTICAL COUPLERS Article 1 JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.26, no.6, pp.658 - 666 JOURNAL OF THE KOREAN PHYSICAL SOCIETY 26 6 658 666 scie A1993MM09400017 Physics, Multidisciplinary Physics Article ELECTROOPTIC MODULATORS TRANSMISSION-LINE traveling wave optical coupler