| 摘要 |
PROBLEM TO BE SOLVED: To provide an amplifier that suppresses a group delay deviation caused by phase disturbance in an optical transmitter and its component. SOLUTION: Amplifier sections 151, 152-15n amplify a transmission signal being an input signal to the amplifier 1, and low pass filters L1, L2 reduce the high frequency component. The low pass filters L1, L2 are configured to reduce the group delay deviation caused by disturbance of phases due to multiple reflection in components of the low pass filters L1, L2 and the multi-stage amplifier sections 151, 152-15n. |
