'A'
Reconfigurable add-drop optical filter based on arrays of digital micromirrors
Author(s): Knapczyk MT (Knapczyk, Maciej T.), de Peralta LG (de Peralta, Luis Grave), Bernussi AA (Bernussi, Ayrton A.), Temkin H (Temkin, Henryk)  
Source: JOURNAL OF LIGHTWAVE TECHNOLOGY    Volume: 26    Issue: 1-4    Pages: 237-242    Published: JAN-FEB 2008  
Authors' addresses:
Texas Tech Univ, Dept Elect & Comp Engn, Lubbock, TX 79409 USA
Texas Tech Univ, Dept Phys, Lubbock, TX 79409 USA

'B'
Bidirectional wavelength add-drop multiplexer using multiport optical circulators and fiber Bragg gratings
Author(s): Kim J, Lee B  
Source: IEEE PHOTONICS TECHNOLOGY LETTERS    Volume: 12    Issue: 5    Pages: 561-563    Published: MAY 2000