Output power:13,14,15,16,17,18,19,20,21,22,23dBm optional Perfect inner automatic microcomputer-controlled circuit 19,1U CATV Optical Fiber Amplifier/ 1550nm Optical fiber Amplifier Features: 1. Using the capability erbium doped fiber to ensure the high efficiency of the energy conversion2. Output power:13,14,15,16,17,18,19,20,21,22,23dBm optional3. Perfect inner automatic microcomputer- ...