To calculate the mode, perform the following procedure.

Step Action
1 In the layout, double-click the input plane.

The Input Plane dialog box appears (see Figure 11).

2 Click the Input Fields 3D tab.

BPM - Figure 11 Input Field dialog box

Figure 11: Input Field dialog box

3 Click Edit.

The Input Field dialog box appears.4Click the All button.5Select the item in the Fields window (see Figure 12), and click Aniso.

The Calculate Mode dialog box appears (see Figure 13).

BPM - Figure 12 Edit Input Field dialog box

Figure 12: Edit Input Field dialog box

BPM - Figure 13 Calculate Mode dialog box

Figure 13: Calculate Mode dialog box

6 Click Calculate Mode.

The Global Data: FD Method dialog box appears (see Figure 14)

BPM - Figure 14 Global Data: FD Method dialog box

Figure 14: Global Data: FD Method dialog box

7 Type the following:

a.   Number of Modes: 38To calculate the mode, click Calc. Mode.

The OptiBPM_M3Dsim window appears (see Figure 15).

Note: If you want to change the wavelength, do so in the Simulation

Parameters dialog box, Global Data tab.

BPM - Figure 15 OptiBPM_M3Dsim window

Figure 15: OptiBPM_M3Dsim window

BPM - Figure 16: Amplitude of the major component field Hy for the fundamental mode Hx11

Figure 16: Amplitude of the major component field Hy for the fundamental mode Hx11

BPM - Figure 17 Amplitude of the minor component field Hx for the fundamental mode H11x

Figure 17: Amplitude of the minor component field Hx for the fundamental mode Hx11

In addition to the mode, Ex11 , we can view the transversal electric field components and mode indexes for the modes Ey11 and Ey21 .