Quad amplifiers in single qsfp form package

An optical amplifier system, comprising:

• a plurality of input optical ports, each being configured in a first optical connector to receive one of a plurality of input optical signals;
• a plurality of output optical ports, each being configured in a second optical connector to output one of a plurality of output optical signals;
• a plurality of first tap photodiodes, each being connected to one of the plurality of input optical ports;
• a wavelength division multiplexer configured to (i) receive the plurality of input optical signals from each of the plurality of input optical ports and an optical input from a laser pump device and (ii) output a plurality of pumped optical signals;
• a plurality of erbium-doped fiber coils, each having a first end configured to receive one of the plurality of pumped optical signals and a second end configured to output one of a plurality of amplified optical signals;
• a plurality of optical isolators, each configured to (i) receive the plurality of amplified optical signal and (ii) output the plurality of output optical signals;
• and
• a second plurality of tap photodiodes, each of the second plurality of tap photodiodes being connected to one of the plurality of output optical ports.

An optical amplifier assembly, comprising:

• a first optical connector comprising a plurality of input optical ports, each being configured to receive one of a plurality of input optical signals;
• a second connector comprising a plurality of output optical ports, each being configured to output one of a plurality of output optical signals;
• a first tap photodiode assembly comprising a plurality of first tap photodiodes, each being connected to one of the plurality of input optical ports;
• a wavelength division multiplexer configured to (i) receive the plurality of input optical signals from each of the plurality of input optical ports and an optical input from a laser pump device and (ii) output a plurality of pumped optical signals;
• a plurality of erbium-doped fiber coils, each having a first end configured to receive one of the plurality of pumped optical signals and a second end configured to output one of a plurality of amplified optical signals;
• an optical isolator assembly comprising a plurality of optical isolators, each configured to (i) receive the plurality of amplified optical signal and (ii) output the plurality of output optical signals;
• and
• a second tap photodiode assembly comprising a plurality of second tap photodiodes, each being connected to one of the plurality of output optical ports.