In an optical amplification characteristics simulation apparatus according to the present invention, using spectrums of a signal light input to an optical amplifier and a characteristic parameter for amplification medium, gain wavelength characteristics of the amplification medium are calculated. The waveguide has at least one electrically conductive interior wall surface, a boresight defined by a longitudinal axis, and an aperture plane, transverse to the longitudinal axis, disposed at a distal end of the waveguide. 2 and 10 pce of a lanthanide acetylacetonate such as a neodymium actylacetonate. A further embodiment encompassing a pivotal actuator and removably attached mixing mechanisms is also illustrated. Such information may be applied by the administrators for adjusting operations, upgrading building equipment, or retrofitting building equipment to improve building energy usage and reduce costs.