What is the typical wavelength range for a diode laser?

The typical wavelength range for a diode laser falls between 810 to 980 nanometers (nm). This range is particularly significant because it corresponds to the near-infrared spectrum, which is where many therapeutic applications of laser therapy are concentrated. Diode lasers operating in this wavelength range absorb well in biological tissues, allowing for effective penetration and interaction with both superficial and deeper tissue structures. This aspect is critical for applications such as pain management, tissue healing, and even surgical procedures, where the specific absorption characteristics of tissue can greatly influence the effectiveness of the therapy.

Wavelengths that are lower than this, such as those in the range of 600-700 nm or 400-500 nm, are not typical for diode lasers, as they typically do not provide the same depth of penetration. Conversely, the 700-800 nm range, while close, is still not the primary range for most diode lasers utilized in therapeutic contexts. Thus, the 810-980 nm range is where diode lasers excel, making this answer valid and relevant for understanding their application in laser therapy.