Table 1.
Specifications for laser parameters.
| Optical parameters | |
| Central wavelength (nm) | 830 |
| Wavelength tolerance (nm) | ± 10 |
| Max output power (W) | 1 |
| Spectral width (FWHM, nm) | < 3.0 |
| Wavelength temp. coefficient | 0.3 |
| Fiber parameters | |
| Fiber core diameter (um) | 60 |
| Numerical aperture | 0.14 |
| Fiber connector | SMA 905 |
| Treatment parameters | |
| Irradiance power at skin (mW/cm2) | 50 |
| Exposure duration (s) | 720 |
| Radiant exposure at skin (J/cm2) | 36 |
| Laser transmission ratio to skin and skull (%) | 63.7 |
| Irradiance power at brain (mW/cm2) | 31.8 |
| Distance to the head from the end of a fiber (cm) | 5 |
| Focused beam spot size (mm2) | 14.01 |
| Number of points irradiated | 1 or 5 |
| Radiant exposure at brain (J/cm2) | 22.9 |