TY - JOUR AU - UTRERAS TELLO, A. J. AU - LICENKO, G. L. AU - REYES CIFUENTES, V. H. AU - MENA VILLACIS, R. I. AU - JARAMILLO PINOS, E. S. PY - 2018/08/20 Y2 - 2024/03/28 TI - OPTICAL WAVELENGTH CONVERTERS IN FIBER OPTICAL NETWORKS JF - Оптико-електроннi iнформацiйно-енергетичнi технологiї JA - Опт-ел. інф-енерг. техн. VL - 34 IS - 2 SE - Волоконно-оптичні технології в інформаційних (internet, intranet тощо) та енергетичних мережах DO - UR - https://oeipt.vntu.edu.ua/index.php/oeipt/article/view/489 SP - AB - <p>Optical Networks often use a wavelength converter as part of a switching system to improve their networks. Wavelength conversion is defined as a process by which the wavelength of the transmitted signal is changed without altering the data carried by the signal. The device that performs this function is usually called a wavelength converter but it is also referred to as a wavelength (or frequency) changer, shifter or translator. It is termed an up-converter when the converted signal wavelength is longer than the original signal wavelength and it is called a down-converter if the converted signal wavelength is shorter than the original signal wavelength. A wavelength converter should be capable of receiving an incoming signal at any wavelength (i.e. a variable wavelength) at the input port and must produce the converted signal at a particular wavelength (i.e. a fixed wavelength) at the output port. Therefore the input/output (I/O) ports of the converter must possess the capability of a variable input–fixed output (VIFO) converter and the majority of the optical switching networks use this type of device</p> ER -