A tunable active filter using an integrated 4-section InGaAs/InGaAsP distributed-Bragg-reflector (DBR) laser was studied. By controlling cavity length and the coupling constant of the grating, the device allowed only a single below-threshold Fabry-Perot mode in the cavity. The device was observed to be useful in channel filtering, monitoring and gain control/equalization to facilitate the wavelength division multiplexing (WDM) network control and management. With this simple and integrated structure, the cost to implement a WDM network monitoring and control system can be reduced.
|頁（從 - 到）
|LEOS Summer Topical Meeting
|Published - 1997
|Proceedings of the 1997 LEOS Summer Topical Meeting - Montreal, Can
持續時間: 11 8月 1997 → 15 8月 1997