Reducing spectral variance of a laser source

Abstract

A laser source includes an optical resonator including first and second reflectors having first and second reflection spectral bands. A gain medium is disposed in the optical resonator. The gain medium has a gain spectrum. Center wavelengths of at least two of: the first reflection spectral band; the second reflection spectral band; or the gain spectrum are offset relative to each other for reduction of a spectral variance of the laser source. For example, the first and the second reflection spectral bands may be offset relative to one another to form an overlap area above a lasing threshold. The lasing is limited to the overlap area. When the overlap area accommodates a single lasing mode, the output emission of the laser source is monochromatic.

Dependencies are inferred from the claim text.