... 16, Jul. 20 09, 26 48 -26 53 Advances in Optical and Photonic Devices 20 8 asymmetric X-junction coupler (Izutsu et al., 19 82; Burns & Milton, 1975; Burns & Milton, 1980), and time ... 1996, 22 0– 22 3 Slight, T. J.; Ironside, C. N.; Stanley, C. R.; Hopkinson, M. & Farmer, C. D. (20 06). Integration of a resonant tunneling diode and an optical communications laser. IEEE Photonics ... Pol, 1 927 ). Since the circuit of Fig. 21 (b) is similar to the circuit of Fig 4, apart from the injected ac driving signal Vac sin (2 π f in t), we applied the same procedure, obtaining a second-order...