Is there any way to just get straight tapered outputs in MMI1x2

[peterxsu]

angle=0 for the MMI1x2 seems to get rid of the output tapers entirely instead of just providing the tapered outputs without any sort of s-curves

[DerekK44]

Thanks for the report! Right now, the length of the taper is fixed to be half the length of the S-curve for the two outputs (and for all ports in the 2x2 MMI). In most cases, an S-curve is recommended to separate the two output port waveguides.

I suppose one way of getting around this would be to add a very slight taper -- pass a separate WaveguideTemplate instance to MMI1x2 that has a very large bending radius, and then make angle small.

I think an enhancement would be to add another optional taper_length_output keyword argument to MMI1x2 so the default value of 1/2 the S-curve can be overwritten.

[DerekK44]

Another workaround is to leave angle=0, and then just connect a straight Taper object to the two outputs. This will give you complete control over the taper length, start width, end width, etc.