Wall-plug efficiency
{{Short description|Energy conversion in optics}}
In optics, wall-plug efficiency or radiant efficiency is the energy conversion efficiency with which the system converts electrical power into optical power. It is defined as the ratio of the radiant flux (i.e., the total optical output power) to the input electrical power.N. P. Barnes, “Solid-state lasers from an efficiency perspective”, IEEE J. Sel. Top. Quantum Electron. 13 (3), 435 (2007)
In laser systems, this efficiency includes losses in the power supply and also the power required for a cooling system, not just the laser itself.[https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4453165 Experimental measurement of the wall-plug efficiency in THz quantum cascade lasers]
See also
- Luminous coefficient
- Luminous efficacy - Efficacy, weighted by the eye's response to light
- Coefficient of utilization