Issued Patents 2017
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9749080 | TWDM passive network with extended reach and capacity | Cedric Fung Lam, Liang Du, Changhong Joy Jiang, Ben Warren Segura, Xiangjun Zhao | 2017-08-29 |
| 9729950 | Upgrading PON systems using a multi-cycle field AWG | Liang Du, Xiangjun Zhao, Cedric Fung Lam, Changhong Joy Jiang | 2017-08-08 |
| 9608758 | Low cost gain clamped EDFA for TWDM passive optical network application | Xiangjun Zhao, Chiachi Wang, Cedric Fung Lam, Liang Du, Changhong Joy Jiang | 2017-03-28 |