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.
National Cancer Survivors Day. The National Cancer Survivors Day is a secular holiday celebrated on the first Sunday in June primarily in the United States of America. The day is meant to âdemonstrate that life after a cancer diagnosis can be a realityâ. Though it is mainly celebrated in the United States, the National Cancer Survivors Day Foundation is attempting to grow its popularity in other countries, with some success.