Light Emitting Diodes and Semiconductor Lasers
Table Of Content Lasers: Understanding the Basics Laser Cut Wooden Lamp Specifically Designed Lasers What is the difference between laser cutting and micromachining? NIF's Guide to How Lasers Work FIBER LASER WAVELENGTHS: Fundamentals of semiconductor lasers Laser Cut Chess Sets In this context, “active” refers to the ytterbium doped fiber core and "passive" refers to the non-doped fiber sections. The laser light emitted from the pump lasers excites the electrons of the ytterbium atoms embedded in the doped fiber core from their ground state to an increased energy state. This produces the excitation levels that lead to the spontaneous emission state described above. The electrons are pumped to reach an energy level corresponding to the wavelength of the pump light. In the case of an ytterbium doped fiber, a photon at 976nm which is absorbed by the ytterbium atom forces the electrons around the atomic nucleus of the Yb atom to move to higher orbitals. Lasers: Under