dual-core fibers. soft glass fibers. characteristics of fiber couplers. non-destructive testing. beam-propagation methodChovan, Jozef, 1974- Coupling properties of asymmetric high index contrast soft glass dual-core fiber in C-band / aut. Jozef Chovan, Ignác Bugár, Dariusz Pysz, Ryszard Buczyński, František Uherek. -- 10.1016/j.yofte.2025.104211. -- 001456804000001. -- 001456804000001. -- 2-s2.0-105000627538. Michalka, Miroslav, 1973-. Uherek, František, 1954-. Pysz, Dariusz. Buczyński, Ryszard. Bugár, Ignác In: Optical Fiber Technology. -- ISSN 1068-5200. -- Vol. 93, (2025), Art. no. 104211 [7] s.