For EDFA, we have more than 22 years production experience. We use American brand JDSU pump. We use double isolator to ensure the stability of output power. Dual plug power supply is convenient to be installed and replaced. LC and SC for optional. 2 or 4 fans are optional, fan size is twice than other brands. Output power can be raised and reduced 2~3dbm. LED display can show the information as your demand. OEM and ODM can available. We can print your logo for free. High gain, low noise, large output signal. The gain of optical amplifier is up to 40db. The output power is 14dbm in one-way pump and 17-20dbm in two-way pump. When fully pumped, the noise figure can be as low as 3-4db, and the crosstalk is small. The gain of optical amplifier is up to 40db. The output power is 14dbm in one