Optical properties of single-crystal sapphire fibers

TY - JOUR

T1 - Optical properties of single-crystal sapphire fibers

AU - Nubling, Rick K.

PY - 1997/8/20

Y1 - 1997/8/20

N2 - Single-crystal sapphire fibers have been grown with the laser-heated pedestal-growth method with losses as low as 0.3 dBym at 2.94 μm. With the incorporation of a computer-controlled feedback system, fibers have been grown with less than ±0.5% diameter variation, or ±1.5 μm for a 300-μm fiber. The losses in these fibers have been reduced further through a postgrowth anneal at 1000 °C in air, from 5.4 to 1.5 dBym at 543 nm and from 0.4−0.3 dBym at 2.94 mm. These fibers delivered 4.7 W at 10 Hz of Er:YAG laser power.

AB - Single-crystal sapphire fibers have been grown with the laser-heated pedestal-growth method with losses as low as 0.3 dBym at 2.94 μm. With the incorporation of a computer-controlled feedback system, fibers have been grown with less than ±0.5% diameter variation, or ±1.5 μm for a 300-μm fiber. The losses in these fibers have been reduced further through a postgrowth anneal at 1000 °C in air, from 5.4 to 1.5 dBym at 543 nm and from 0.4−0.3 dBym at 2.94 mm. These fibers delivered 4.7 W at 10 Hz of Er:YAG laser power.

KW - Er:YAG lasers

KW - Infrared fibers

KW - Optical properties

KW - Sapphire fibers

UR - https://www.scopus.com/pages/publications/0031208444

UR - https://www.scopus.com/pages/publications/0031208444#tab=citedBy

U2 - 10.1364/AO.36.005934

DO - 10.1364/AO.36.005934

M3 - Article

C2 - 18259433

SN - 1559-128X

VL - 36

SP - 5934

EP - 5940

JO - Applied Optics

JF - Applied Optics

IS - 24

ER -