Fiber Raman Amplifier (FRA) is also a relatively mature optical amplifier. In a FRA, the optical signal is amplified due to stimulated Raman scattering (SRS). In general, FRA can is divided into lumped type called LRA and distributed type called DRA.
National Sibling Day is a day to appreciate and cherish your brothers and sisters. Siblings are truly a special blessing that we probably all too often take for granted. They are often our best friends and supporters through life. Another reason to celebrate is that not everyone is lucky enough to have siblings.
K-Days, formerly known as Klondike Days and Edmonton's Capital Ex, is an annual 10-day exhibition held in Edmonton, Alberta, Canada, usually near the end of July. In recent years it has attracted between 700,000 and 800,000 visitors each year. It runs in conjunction with A Taste of Edmonton and â from 2006 through 2012 â the Edmonton Indy.