Patent ID: 8280255

Claim:
A photonic integrated circuit comprising: a substrate; a first and a second laser source provided on the substrate, the first laser source configured to provide a first optical output at a respective one of a plurality of wavelengths, the second laser source configured to provide a second optical output at a respective one of the plurality of wavelengths; a first and a second semiconductor optical amplifier (SOA) provided on the substrate, the first SOA coupled to the first laser source to receive the first optical signal and provide a first amplified optical signal, the second SOA coupled to the second laser source to receive the second optical output and provide a second optical signal; a first and a second modulator provided on the substrate, the first modulator coupled to the first SOA to receive the first amplified optical signal and provide a first of a plurality of first modulated optical outputs and a first of a plurality of second modulated optical outputs, the second modulator coupled to the second SOA to receive the second of the plurality of amplified optical signals and provide a second of the plurality of first modulated optical outputs and a second of the plurality of second modulated optical outputs; a first and a second optical multiplexer provided on the substrate, the first optical multiplexer having a plurality of inputs and an output, the first optical multiplexer configured to receive each of the plurality of first modulated optical outputs on a corresponding one of the plurality of inputs of the first optical multiplexer, the first optical multiplexer configured to multiplex the plurality of first modulated optical outputs into a first multiplexed optical output provided at the output of the first optical multiplexer, the second optical multiplexer having a plurality of inputs and an output, the second optical multiplexer configured to receive each of the plurality of second modulated optical outputs on a corresponding one of the plurality of inputs of the second optical multiplexer, the second optical multiplexer configured to multiplex the plurality of second modulated optical outputs into a second multiplexed optical output provided at the output of the second optical multiplexer.