Fig. 1. The detailed structure of chip

Fig. 2. The measured optical spectrum of the optical chip

Fig. 3. The 3 dB bandwidth of the chip

Fig. 4. The picture of the device

Fig. 5. The optical path design at the transmitter side

Fig. 6. The optical path design at the receiver side

Fig. 7. The housing model

Fig. 8. Crosstalk from EAM to shell

Fig. 9. Optical eye diagram of signal at 50 Gbit/s under normal conditions

Fig. 10. The optical eye diagram of signal at both high and low temperatures for 50 Gbit/s TOSA