An optical waveguide suitable for a slanted Bragg grating to be written thereinto has a refractive index profile defining a core and a cladding and a specific photosensitivity profile. The system may include at least one computer system configured to receive patient-specific data regarding a geometry of the patient’s heart, and create a three-dimensional model representing at least a portion of the patient’s heart based on the patient-specific data. The package which encloses the pressurized container substantially prevents ingression of water vapor and particulate matter into the package while permitting egression of the propellant which may leak from the pressurized container. Giving Examiners the option of living anywhere in the country provides a greater incentive for them to remain employees of the Patent Office. These traits set \u2018WINTER LACE\u2019 apart from all other existing varieties of Lavandula known to the inventor.