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Contact: Brielle Day
bday@osa.org
202-416-1435
The Optical Society
Caption: This shows an experimental setup consisting of the 495Gb/s PM-QPSK-8QAM transmitter, the transmission line system implemented in a recirculating loop, and the digital coherent receiver. WDM: wavelength division multiplexer; DSP: digital signal processing; DAC: digital to analog converter; ILF: interleave filter; IQ MOD: in-phase and quadrature modulator; POL MUX: polarization multiplexer; OA: optical amplifier; LO: local oscillator; O/E: optical to electrical converter; ULA: ultra-large area; ADC: analog to digital converter.
Credit: Image courtesy of AT&T Labs
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