'A' cited 'B'.



'A':

Bidirectional optical cross connects for multiwavelength ring networks using single arrayed waveguide grating router

Kim S

JOURNAL OF LIGHTWAVE TECHNOLOGY

20 (2): 188-194 FEB 2002

Addresses:

Kim S, Korea Telecom, Access Network Lab, Taejon, South Korea



'B':

Bidirectional wavelength add-drop multiplexer using multiport optical circulators and fiber Bragg gratings

Kim J, Lee B

IEEE PHOTONICS TECHNOLOGY LETTERS

12 (5): 561-563 MAY 2000