| Autor: |
M. Tilsch, C.A. Hulse, F.K. Zernik, R.A. Modavis, C.J. Addiego, R.B. Sargent, N.A. O'Brien, H. Pinkney, A.V. Turukhin |
| Zdroj: |
IEEE Photonics Technology Letters; Jan2003, Vol. 15 Issue 1, p66-68, 3p |
| Abstrakt: |
Dispersion management is critical for next-generation high-bandwidth-utilization fiber-optical networks. Square-top thin-film bandpass filters for 50-GHz dense wavelength-division multiplexing inherently have high chromatic dispersion (CD) in transmission. The imparted dispersion power penalty on the network is undesirable. However, a second thin-film filter, operating in reflection, can be designed to compensate the CD of the bandpass filter. In this paper we demonstrate experimentally the reduction of the intrinsic CD of a 50-GHz thin-film coupler from ±170 ps/nm to ±50 ps/nm over a 30-GHz passband, through the use of such a cascaded thin-film compensator. Network simulations based on filter performance confirm the reduced dispersion power penalty of the cascade over the individual filter. [ABSTRACT FROM PUBLISHER] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
