Laser.

摘要

A 2.7 mu m laser comprises a single mode fluoro-zirconate optical fibre doped with 0.086 mole <o>/o Er<3><+>. C-W operation of the usually self-terminating lasing transition <4>I11/2 to <4>I13/2 is achieved by applying excitation energy of a suitable wavelength and intensity to elevate ions from the lower lasing level to maintain a population invers ion between the upper and lower lasing levels during lasing. The laser may be pumped at a single wavelength of about 785nm by a semiconductor laser.