Optical fiber for optical power transmission
First Claim
1. An optical fiber for optical power transmission, comprising:
- an annular power waveguide region adapted to carry power light, said annular power waveguide region comprising an inner radius of greater than 5 μ
m, a width (W3) greater than 5 μ
m, and a relative refractive index percent (Δ
3(%)) greater than or equal to 1%.
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Accused Products
Abstract
An optical fiber adapted to carry optical power for powering an electrical device and also optionally adapted to carry optical data for signal processing. The optical fiber capable of carrying both optical data and optical power includes a central data waveguide region that carries data light and an annular power waveguide region concentrically surrounding the data waveguide region and adapted to carry relatively large amounts of optical power. A first annular isolation region between the data and power waveguide regions and that includes microstructures serves to optically isolate the waveguide regions. An outer annular isolation region serves to confine power light to the power waveguide region and contributes to the bend-resistance of the optical fiber. An optical power and optical data distribution system that utilizes the optical fiber is also described.
52 Citations
34 Claims
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1. An optical fiber for optical power transmission, comprising:
an annular power waveguide region adapted to carry power light, said annular power waveguide region comprising an inner radius of greater than 5 μ
m, a width (W3) greater than 5 μ
m, and a relative refractive index percent (Δ
3(%)) greater than or equal to 1%.- View Dependent Claims (2, 3, 4, 5, 6)
-
7. An optical fiber for optical power transmission, comprising:
-
an inner isolation region comprising glass having microstructures formed therein and having a relative refractive index Δ
2, inner and outer radii r1 and r2 that define an area A2=r22−
ri2, and wherein −
400≦
Δ
2A2≦
−
20;an annular power waveguide region surrounding the inner isolation region and adapted to carry power light; an outer annular isolation region comprising glass having microstructures formed therein and having a relative refractive index Δ
4, inner and outer radii r4 and r5 that define an area A4=r52−
r42, and wherein −
6000≦
Δ
4A4≦
−
100; anda cladding surrounding the outer annular isolation region. - View Dependent Claims (8, 9, 10, 11, 12, 13)
-
-
14. An optical fiber for optical power and optical data transmission, comprising:
-
a central data waveguide region adapted to carry data light; an annular power waveguide region concentrically surrounding the central waveguide region and adapted to carry power light; an inner isolation region arranged between the central data waveguide region and the annular power waveguide region and comprising glass having microstructures formed therein and having a relative refractive index Δ
2, inner and outer radii r1 and r2 that define an area A2=r22−
r12, and wherein −
400≦
Δ
2A2≦
−
20; andan outer annular isolation region surrounding the annular power waveguide region and that serves to confine the power light to the annular power waveguide region. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
-
-
26. A method of transmitting optical power light in an optical fiber having an input end and an output end, comprising:
-
inputting the power light at the input end into an annular power waveguide region defined by inner and outer isolation regions and having an attenuation α
p in the range 0.16 dB/km≦
α
p≦
50 dB/km; andoutputting the power light at the output end as an annular power light beam. - View Dependent Claims (27, 28, 29)
-
-
30. A method of transmitting data light and optical power light in an optical fiber having an input end and an output end, comprising:
-
a) at the input end; inputting the data light into a central data waveguide region; inputting the power light into an annular power waveguide region surrounding the central data waveguide region and optically isolated therefrom; b) at the output end; outputting the data light at the output end as a central data light beam; and outputting the power light at the output end as an annular power light beam that surrounds the central data light beam. - View Dependent Claims (31, 32, 33, 34)
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Specification