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137 lines
4.8 KiB
Python
137 lines
4.8 KiB
Python
from typing import Tuple, Sequence, Callable
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from pprint import pformat
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import numpy
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from numpy import pi
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from masque.builder import Device
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from masque.library import Library, LibDeviceLibrary
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from masque.file.gdsii import writefile, load_libraryfile
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import pcgen
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import basic_shapes
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import devices
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from basic_shapes import GDS_OPTS
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def main() -> None:
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# Define a `Library`-backed `DeviceLibrary`, which provides lazy evaluation
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# for device generation code and lazy-loading of GDS contents.
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device_lib = LibDeviceLibrary()
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#
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# Load some devices from a GDS file
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#
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# Scan circuit.gds and prepare to lazy-load its contents
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pattern_lib, _properties = load_libraryfile('circuit.gds', tag='mycirc01')
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# Add it into the device library by providing a way to read port info
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# This maintains the lazy evaluation from above, so no patterns
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# are actually read yet.
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device_lib.add_library(pattern_lib, pat2dev=devices.pat2dev)
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print('Devices loaded from GDS into library:\n' + pformat(list(device_lib.keys())))
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#
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# Add some new devices to the library, this time from python code rather than GDS
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#
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a = devices.LATTICE_CONSTANT
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tri = basic_shapes.triangle(devices.RADIUS)
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# Convenience function for adding devices
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# This is roughly equivalent to
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# `device_lib[name] = lambda: devices.dev2pat(fn())`
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# but it also guarantees that the resulting pattern is named `name`.
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def add(name: str, fn: Callable[[], Device]) -> None:
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device_lib.add_device(name=name, fn=fn, dev2pat=devices.dev2pat)
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# Triangle-based variants. These are defined here, but they won't run until they're
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# retrieved from the library.
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add('tri_wg10', lambda: devices.waveguide(lattice_constant=a, hole=tri, length=10, mirror_periods=5))
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add('tri_wg05', lambda: devices.waveguide(lattice_constant=a, hole=tri, length=5, mirror_periods=5))
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add('tri_wg28', lambda: devices.waveguide(lattice_constant=a, hole=tri, length=28, mirror_periods=5))
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add('tri_bend0', lambda: devices.bend(lattice_constant=a, hole=tri, mirror_periods=5))
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add('tri_ysplit', lambda: devices.y_splitter(lattice_constant=a, hole=tri, mirror_periods=5))
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add('tri_l3cav', lambda: devices.perturbed_l3(lattice_constant=a, hole=tri, xy_size=(4, 10)))
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#
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# Build a mixed waveguide with an L3 cavity in the middle
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#
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# Immediately start building from an instance of the L3 cavity
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circ2 = device_lib['tri_l3cav'].build('mixed_wg_cav')
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print(device_lib['wg10'].ports)
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circ2.plug(device_lib['wg10'], {'input': 'right'})
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circ2.plug(device_lib['wg10'], {'output': 'left'})
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circ2.plug(device_lib['tri_wg10'], {'input': 'right'})
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circ2.plug(device_lib['tri_wg10'], {'output': 'left'})
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# Add the circuit to the device library.
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# It has already been generated, so we can use `set_const` as a shorthand for
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# `device_lib['mixed_wg_cav'] = lambda: circ2`
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device_lib.set_const(circ2)
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#
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# Build a device that could plug into our mixed_wg_cav and joins the two ports
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#
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# We'll be designing against an existing device's interface...
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circ3 = circ2.as_interface('loop_segment')
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# ... that lets us continue from where we left off.
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circ3.plug(device_lib['tri_bend0'], {'input': 'right'})
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circ3.plug(device_lib['tri_bend0'], {'input': 'left'}, mirrored=(True, False)) # mirror since no tri y-symmetry
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circ3.plug(device_lib['tri_bend0'], {'input': 'right'})
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circ3.plug(device_lib['bend0'], {'output': 'left'})
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circ3.plug(device_lib['bend0'], {'output': 'left'})
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circ3.plug(device_lib['bend0'], {'output': 'left'})
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circ3.plug(device_lib['tri_wg10'], {'input': 'right'})
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circ3.plug(device_lib['tri_wg28'], {'input': 'right'})
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circ3.plug(device_lib['tri_wg10'], {'input': 'right', 'output': 'left'})
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device_lib.set_const(circ3)
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#
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# Write all devices into a GDS file
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#
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# This line could be slow, since it generates or loads many of the devices
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# since they were not all accessed above.
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all_device_pats = [dev.pattern for dev in device_lib.values()]
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writefile(all_device_pats, 'library.gds', **GDS_OPTS)
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if __name__ == '__main__':
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main()
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#
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#class prout:
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# def place(
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# self,
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# other: Device,
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# label_layer: layer_t = 'WATLAYER',
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# *,
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# port_map: Optional[Dict[str, Optional[str]]] = None,
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# **kwargs,
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# ) -> 'prout':
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#
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# Device.place(self, other, port_map=port_map, **kwargs)
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# name: Optional[str]
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# for name in other.ports:
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# if port_map:
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# assert(name is not None)
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# name = port_map.get(name, name)
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# if name is None:
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# continue
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# self.pattern.labels += [
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# Label(string=name, offset=self.ports[name].offset, layer=layer)]
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# return self
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#
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