The RLT Series Raman Fiber Lasers are optical sources optimized for Telecom applications. They operate with 1,000,000Hrs MTTF reliability in any wavelength from1100nm to 1700nm with output powers of up to 10W CW. These lasers are manufactured by IPG. The lasers are being deployed in demanding ultra long haul DWDM transmission systems to provide distributed Raman amplification and remote pumping of Erbium Doped Fiber Amplifiers [EDFAs]. Raman Fiber Lasers offer a pump source over other techniques such as frequency multiplexed single mode laser diode combiners by virtue of proven high reliability, cost, efficiency and watt class powers. Linear polarization and higher power outputs, up to 50 watts. These modules are offered with analog or smart digital control options. The salient features of the Raman Fiber Lasers: