premade_coupler

premade_coupler(wl: Union[float, jax.Array, numpy.ndarray, numpy.bool_, numpy.number, bool, int, complex] = 1.55, split: int = 50) → Dict[Tuple[str, str], jaxtyping.Complex[Array, '...']]

Loads premade couplers based on the given split value.

Various splitting ratio couplers have been made and saved. This function reloads them. Note that each of their lengths are different and are also returned for the users info. These have all been designed with waveguide geometry 500nm x 220nm.

Ports are numbered as:

|       2---\      /---4       |
|            ------            |
|            ------            |
|       1---/      \---3       |

Parameters

split (int) – Percent of light coming out cross port. Valid numbers are 10, 20, 30, 40, 50, 100. 100 is a full crossover.