Optical fiber cable for transmission of high power laser energy over great distances
First Claim
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1. An optical fiber cable for transmitting high power laser energy over great distances comprising:
- an optical fiber cable having a length that is greater than about 1 Km;
the cable comprising;
a. a core, comprising fused silica, and having a diameter of about 200 microns to about 700 microns;
b. a cladding, comprising fused silica; and
,c. a protective layer, wherein the protective layer surrounds the cladding, whereby the protective layer protects the cladding and the core;
d. wherein, the cable is capable of transmitting laser energy having a power greater than or equal to about 5 kW over the length of the cable with a power loss of less than 2.2 dB/Km and without the presence of stimulated Brillouin scattering.
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Abstract
There is provided a system and apparatus for the transmission of high power laser energy over great distances without substantial power loss and without the presence of stimulated Raman scattering. There is further provided systems and optical fiber cable configurations and optical fiber structures for the delivering high power laser energy over great distances to a tool or surface to perform an operation or work with the tool or upon the surface.
566 Citations
16 Claims
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1. An optical fiber cable for transmitting high power laser energy over great distances comprising:
- an optical fiber cable having a length that is greater than about 1 Km;
the cable comprising;a. a core, comprising fused silica, and having a diameter of about 200 microns to about 700 microns; b. a cladding, comprising fused silica; and
,c. a protective layer, wherein the protective layer surrounds the cladding, whereby the protective layer protects the cladding and the core; d. wherein, the cable is capable of transmitting laser energy having a power greater than or equal to about 5 kW over the length of the cable with a power loss of less than 2.2 dB/Km and without the presence of stimulated Brillouin scattering. - View Dependent Claims (2, 3, 4, 5)
- an optical fiber cable having a length that is greater than about 1 Km;
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6. An optical fiber cable for transmitting high power laser energy over great distances comprising:
- an optical fiber cable having a length that is greater than about 1 Km;
the cable comprising;
a core;
a cladding;
a coating; and
, a protective layer;
wherein the coating is exterior of the cladding and interior of the protective layer;
wherein, the cable is capable of transmitting laser energy having a power greater than or equal to about 5 kW over the length of the cable with a power loss of less than 1.1 dB/Km and with a substantially linear relationship of launch to output laser energy, thereby defining the avoidance of Stimulated Brillouin scattering. - View Dependent Claims (7, 8)
- an optical fiber cable having a length that is greater than about 1 Km;
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9. An optical fiber cable for transmitting high power laser energy over great distances comprising:
- an optical fiber cable having a length that is greater than about 5 Km;
the cable comprising;
a core consisting essentially of fused silica, and defining a diameter of at least about 200 microns;
a cladding comprising fused silica;
a coating for withstanding high temperatures;
a first protective layer; and
, a second protective layer;
wherein the coating, the first protective layer and the second protective layer are exterior to and protect the core and cladding;
wherein, the cable is capable of transmitting laser energy having a power greater than or equal to about 10 kW over the length of the cable with a power loss of less than 2.2 dB/km. - View Dependent Claims (10, 11, 12, 13)
- an optical fiber cable having a length that is greater than about 5 Km;
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14. An optical fiber cable for transmitting high power laser energy over great distances comprising:
- an optical fiber cable having a length that is greater than about 1 Km;
the cable comprising;
a core;
a cladding;
a coating; and
, a protective layer;
wherein the coating surrounds the cladding and the protective layer surrounds the coating;
wherein, the cable is capable of transmitting laser energy having a power greater than or equal to about 5 kW over the length of the cable with a power loss of less than 1.1 dB/Km and with a substantially linear relationship of launch to output laser energy, thereby defining the management of Stimulated Brillouin scattering. - View Dependent Claims (15, 16)
- an optical fiber cable having a length that is greater than about 1 Km;
Specification