Figure 3
From: All-optical routing and switching for three-dimensional photonic circuitry
All-optical routing and switching at a T-junction.
Experiments (top row) and simulations (bottom row) at a T-junction (central microscope image in Fig. 1c). Left column: Strongly localised high power beam, acting as blocker. Central column: The low power signal propagates into both branches with some preference for the forward direction. Right column: In presence of the blocker, the signal is routed into the transverse branch around an angle of 90°. The power ratio between the two branches is changed by ∼10dB and only ∼6% of the light is reflected. In the cw-simulation the power ratio is changed by ∼15dB. Signal and Blocker intensities have been rescaled to their respective maximum. For a full simulation of the light evolution see Movies S3-4 in the Supplementary Videos.
