Nowaday, fiber lasers continue to extend applications in various industries, medical applications in advance of medical equipment will play a great role. From simple laser hair removal equipment to build large-scale laser equipment neurons, which is no doubt our country and the world medical role.

Recently, according to a group of French physicist confirmed, based on a thin layer of fine semiconductor laser can simulate biological neuron light, the team said when the input signal is greater than a minimum threshold value and can be spread in time when this "micro-column" laser emits light, and the key characteristics which, as biological neurons.

The human brain is composed of about 100 billion neurons, each neuron receives signals from other neurons through thousands of tiny synapses. When the signal is the sum of synapses exceeds a certain threshold, the neuron will emit light. Such neurons were called "excited": below the threshold input and output of the system is small, linear, but higher than the threshold value of the input will cause the output becomes large and nonlinear. "Before using an optical system such as the relative refractory period have been discovered." Barbay said, "The discovery is interesting because it forces the biological neuron analogy, because it shows that the system has its previous state memory "Barbay also pointed out that computer scientists have built to simulate the brain long way to go, because he said it was all neurons normalized to a single model is unrealistic, but also because of the number of neurons in the brain connection status beyond the capacity of existing technology can be calculated. But he added that his group's equipment may help neurons construction of small networks.