Wavelength conversion waveguide and fabrication method

Details Wavelength conversion waveguide and fabrication method Wavelength conversion waveguide and fabrication method

1992-09-10

1994-03-01

Epps, Georgia Y.

Fishing, trapping, and vermin destroying

437 81, 437105, 437151, 423489, 423490, 4234991, 372 41, 372 69, H01L 2120, H01S 316

Patent

active

052907309

ABSTRACT:
A radiation wavelength conversion device is implemented in the form of a waveguide that includes a single crystal halide-based cladding layer, and a halide-based active layer. The active layer has a greater refractive index than the cladding layer, is approximately lattice matched with the cladding layer, and includes a dopant that causes it to respond to input radiation at one wavelength by emitting radiation at a different wavelength. The active layer can either form part of a laser resonator cavity, or can operate through spontaneous emission. It is preferably about 3.5-5 microns thick to induce single-mode propagation, and can be divided into separate waveguiding channels to limit beam fanning. The device is operable at room temperature, and can be fabricated using conventional microelectronics techniques.

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