Fig. 10-1: Transmission windows

Fig. 10-2: Typical WDM Network

Fig. 10-3: Basic Star Coupler

Fig. 10-4: Fused-fiber coupler

Fig. 10-5: Coupler

characteristics

Fig. 10-6: Generic 2X2 guided-wave coupler

Fig. 10-7: Symmetric/asymmetric

couplers

Fig. 10-8: Power distribution vs guide length

Fig. 10-9: Symmetric coupler response

Fig. 10-10: Asymmetric coupler response

Fig. 10-11: Fused-fiber star coupler

Fig. 10-12: 8x8 star coupler

Fig. 10-13: Basic Mach-Zehnder interferometer

Fig. 10-14: Four-channel wavelength multiplexer

Fig. 10-15: Reflection grating

Fig. 10-16: Bragg grating formation

Fig. 10-17: Simple demux function

Fig. 10-18: Arrayed waveguide grating

Fig. 10-20: Tunable DBR Laser

Fig. 10-21: Tunable laser characteristics

Fig. 10-23: Tunable optical filter

Fig. 10-27: Extended add/drop mux