Blue and green laser oscillation method and device adopting the

Details Blue and green laser oscillation method and device adopting the Blue and green laser oscillation method and device adopting the

1995-05-01

1997-06-10

Bovernick, Rodney B.

Coherent light generators

Particular active media

Plural active media or active media having plural dopants

372 6, 372 41, H01S 314

Patent

active

056383940

ABSTRACT:
A blue and green laser generation method and device adopting the same wherein the method includes the steps of pumping an electron of a first element to a first energy level by employing a first pumping energy to thereby obtain an optoacoustic energy according to a first energy absorption; and pumping an electron of a second element to a second energy level being higher than the first energy level, by employing the optoacoustic energy as a pumping source, to thereby obtain blue and green lasers having a desired wavelength according to a second energy absorption. The device has a core having a predetermined refractive index and which is doped by an element for generating light in a band of a predetermined wavelength by means of energy absorption; and a cladding layer provided around the core and which has a refractive index different from that of the core. The core is doped using at least two elements, one having a higher energy level difference than the other, to thereby enable miniaturization of the device and the mass production of a high performance device having a single mode.

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