Diode pumped laser and doubling to obtain blue light

Patent · Tue Feb 28 04:00:00 EST 1989

OSTI ID:6218225

Byer, R L; Fan, T Y

This patent describes a method for generating coherent blue light, by generating a beam of optical pumping radiation of a first optical wavelength from a semiconductive diode. The beam of optical pumping radiation is derived from the diode is directed into a Nd/sup 3/+ doped member of lasant material disposed in an optical resonator for efficient, optical pumping of the lasant material to excite optical lasant radiation at a second wavelength corresponding to the /sup 4/F/sub 3/2/-/sup 4/I/sub 9/2/ laser transition having a wavelength in the range of 0.870-0.960 ..mu..m. The lasant radiation is reflected at the second wavelength between reflectors of the optical resonator containing the member of lasant material and through the optically pumped member of lasant material for exciting the optical resonator with coherent, optical radiation at the second wavelength. The coherent, optical radiation interacts with a non-linear, electro-optic material within an optical resonator to generate coherent, optical radiation at a third wavelength which is the second harmonic of the second wavelength, thereby producing coherent blue light.

• Assignee: Board of Trustees, of Leland Stanford Jr. U., Stanford, CA
• Patent Number(s): US 4809291
• OSTI ID: 6218225
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
BEAM OPTICS
COLOR
DOPED MATERIALS
ELECTRO-OPTICAL EFFECTS
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
ELEMENTS
EQUIPMENT
LASER MATERIALS
LASER RADIATION
LASERS
MATERIALS
METALS
NEODYMIUM
OPTICAL PROPERTIES
OPTICAL PUMPING
ORGANOLEPTIC PROPERTIES
PHYSICAL PROPERTIES
PUMPING
RADIATIONS
RARE EARTHS
REFLECTION
RESONATORS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR DIODES
SEMICONDUCTOR LASERS
VISIBLE RADIATION
WAVELENGTHS