1). Figure three was altered from:
Figure 3
Simulation results for wavelength switching from 1531.95 nm for 3 different strategies: (a) and (b) switching to a neighboring longitudinal cavity mode 0.04 nm apart, (c) and (d) switching to the valley of the fine filter 0.25 nm apart, (e) and (f) switching to the neighboring peak of the fine filter 0.5 nm apart.
To:
Figure 3
Simulation results for wavelength switching from 1531.95 nm for 3 different strategies: (a) and (b) switching to a neighboring longitudinal cavity mode 0.04 nm apart, (c) and (d) switching to the valley of the fine filter 0.25 nm apart, (e) and (f) switching to the neighboring peak of the fine filter 0.5 nm apart.
2). Figure 1 was shown in the original document twice. It is now shown in the paper only once.
