Tunable 1550-nm high contrast grating VCSEL detector
We report a 1550-nm tunable transceiver using a monolithic high contrast grating VCSEL, functioning as both a laser and detector. A 1A/W responsivity, 33.5 nm tuning range, 1.2 nm spectrum width and 2.5 Gb/s detection speed are achieved at its detector mode. An error-free 1 Gb/s link between two such VCSEL detectors is experimentally demonstrated.