PATENT CLAIM ANALYSIS

Application Number: 15772263
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["385", "125000"]

Abstract:
A photonic crystal fiber according to the present invention has a plurality of holes arranged in the optical fiber along a longitudinal direction, in which the holes are arranged such that, in a cross section, a hole ratio which is an area of the holes per unit area is larger in a central side than in an outer side in a portion corresponding to a cladding and that a wide core area can be obtained while the number of modes that can be propagated is limited to several. Moreover, in a high-power optical transmission system according to the present invention, the amount of axis misalignment between the central axis of a laser oscillator and the central axis of the photonic crystal fiber is less than or equal to a certain amount.

Claim (Index 4):
A photonic crystal fiber having a plurality of holes arranged in the optical fiber along a longitudinal direction,\n wherein, in a cross section, a hole ratio which is an area of the holes per unit area is larger in a central side than in an outer side in a portion corresponding to a cladding, a diameter of all of the holes is d, and an interval \u039b 1  of the holes in the central side is smaller than an interval \u039b of the holes in the outer side, and, when \u039b is represented in a horizontal axis and d/\u039b is represented in a vertical axis, \u039b and d are in a region where respective regions represented by mathematical formulas C2 overlap, and a bending loss of a basic mode is 1 dB/km with a bending radius of 500 mm or less.\n [Mathematical Formulas  C 2] \n d/\u039b\u2264 0.24\u039b\u22122.22(\u039b\u226410.8 \u03bcm) \n d/\u039b\u2264 0.00667\u039b+0.293(10.8 \u03bcm\u2264\u039b\u226419.5 \u03bcm) \n d/\u039b\u2264 0.01\u039b+0.23(\u039b\u226519.5 \u03bcm) \n d/\u039b\u2265 0.3(\u039b\u226419.2 \u03bcm) \n d/\u039b\u2265 0.0195\u039b\u22120.075(\u039b\u226519.2 \u03bcm)\u2003\u2003(C2)

Metadata:
- Claim Count in Document: 29.0
- Percentile: 91.0
- Lexical Diversity: 2.0
- Patent Class: 385.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15563988', '15752809', '10976185', '15593638', '15042833']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8355367772300873
- 35 USC 102 Novelty (BERT): 0.526005882913378
- Combined Prediction Score: 0.8045836877984165
- Mean Citation Score: 280.830506
- Max Citation Score: 347.38812
- Similarity Product: 260.6513905716348

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test