CO2 laser system is equipped with articulated arm as CO2 laser light is unable to travel through optical fi ber. For this reason, it cannot be used
for endoscopic surgery. On the other hand, a diode laser is used for the endoscopic surgery since its laser light travels through silica fi ber or

glass fiber.
Besides, a diode laser can approach to the site where CO2 laser cannot reach so that it gives wide variations of operative procedures.