The commonly used medical gas laser tubes are as follows:
1. The output wavelengths of argon ion laser tube are 514.5 nm and 488 nm, and the power can reach tens of Watts in the mode of continuous operation. The visible blue-green wavelength laser can be transmitted through optical fiber. The absorption rate of hemoglobin at this wavelength is very high, so it can be used as the therapeutic light source of photodynamic therapy. In principle, it has to spend a lot of money to replace the laser tube every 3-4 years. Similar to this is the copper vapor laser. At present, diode laser pumped frequency doubled Nd: YAG laser can obtain an average power of more than 10 W in continuous operation mode and more than 100 in high repetition rate operation mode W 532 nm green laser, so it can not only replace copper vapor laser argon ion laser in many medical fields, but also has new applications in Ophthalmology, prostate and other fields, and shows strong economic practicability.
2. CO2 laser tube with output wavelength of 10.6 μ m belongs to far infrared laser. There are two kinds of operation modes: continuous operation and pulse operation, which are generally transmitted through the light guide joint arm. Because carbon dioxide laser is easy to achieve high power output (above kW), the cost is relatively low, and its wavelength absorption rate of water is very high, so it is mostly used for high-power laser treatment.
3. He CD laser tube with output wavelength of 441.6 nm. It is mainly continuous operation. It can be used as a diagnostic light source for photodynamic therapy.
4. He Ne laser tube with output wavelength of 632.8 nm. It can only be used for weak laser therapy, that is, laser physiotherapy and laser acupuncture; it can also be used as the therapeutic light source of photodynamic therapy.
5. Krypton ion laser tube, operating wavelength is 406.7 nm, 415.4568 nm, 647 nm. It is mainly continuous operation. It can be used as a diagnostic light source for photodynamic therapy.
For more information about laser tube and laser tube manufacturer of Shanghai Shanpu Laser Technology Co., Ltd., please contact editor.