Fig. 3 (IMAGE) Osaka University Caption Bit error rate vs. photocurrent of the photodiode in the transmitter using photonics-based signal generators (64QAM). Credit Osaka University Usage Restrictions No restrictions License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.