1. The Function of InP Window

2. Gain Suppression of SOA
Input light
Output light

3. 2.5GHz XGM eye diagram
Probing wavelength =1560nm, pumping wavelength =1570nm.

4. 5.0GHz XGM Eye Diagram
Probing wavelength =1560nm, pumping wavelength =1570nm.

5. Tunable wavelength converter

6. The Curves of tunable laser of TWC for pulse current

7. Issues Tunable laser can not work under cw current injection
Threshold current is higher and output power is lower(including SOA)
More time is needed to find and solve these problems

8. The picture of all device

9. Future Work Measure the devices which have been made continuously.
Analyze the problems of the devices and solve them.
Improve the processing and design of TWC
Provide the high quality TWC device