Pair control is generally adopted in telecommunication systems to save software processing time to set up both-way paths between a sender and a receiver. We have introduced new pair control architecture into a Photonic Switch Fabric (PSF) which is a key instrument of a developed Photonic Label Switch Router (PLSR). In our WAPS (Wavelength Assignment Photonic Switching System), the PLSR is to be operated as a photonic router in the optical internet system to guarantee QoS (Quality of Service) and the transmission bandwidth by providing end-to-end wavelength LSPs (Label Switched Paths). In contrast with that conventional pair controlled PSFs do not have capability to save switching elements and its control circuits, the proposed architecture enables to save them drastically.