The increased optical gain brings some problems due to the possibility of getting more than one returned photon per pulse.

The type of optical gain medium used will set what color (wavelength) will be produced.

This is a simple design; the type of optical gain medium used usually defines the type of laser.

In this article an alternative method to decrease the optical gain is presented.

Recombination of electrons and holes created by the applied current introduces optical gain.

In semiconductor laser theory, the optical gain is produced in a semiconductor material.

Since defining semiconductor's optical gain is an ambitious undertaking, it is useful to build the understanding by steps.

Various experimental approaches can be used for the determination of the optical gain of semiconductor structures.

He then set the optical gains at normal default values, and instructed Carol not to change anything.

So the output power depends linearly on the spontaneous emission rate and exponentially on the optical gain.