Devices and methods for optical interconnects using polarization multiplexing

An optical transceiver, comprising:

• a first optical fiber port and a second optical fiber port;
• a transmitter having a first modulator bank and second modulator bank, wherein each modulator bank of the first and second modulator banks configured to modulate light having wavelengths corresponding to a first set of wavelengths;
• a first polarization splitter rotator (PSR) coupled between the first optical fiber port and the first and second modulator banks, the first PSR configured to:
• provide a first optical signal received from the first modulator bank and a second optical signal received from the second modulator bank to the first optical fiber port, wherein providing the first optical signal to the optical fiber port comprises rotating a polarization state associated with the first optical signal;
• a receiver having a first receiver bank and second receiver bank, wherein each receiver bank of the first and second receiver banks is configured to receive light having wavelengths corresponding to a second set of wavelengths;
• and
• a second PSR coupled between the second optical fiber port and the first and second receiver banks, the second PSR configured to:
• split light received from the second optical fiber port to provide a third optical signal to the first receiver bank and a fourth optical signal to the second receiver bank, wherein splitting the light comprises rotating a polarization state associated with the third optical signal.