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 7):
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, three or more layers having different hole ratios from each other are arranged concentrically with a layer closer to a center having a larger hole ratio, a diameter d of all the holes are the same, and, when an interval \u039b between a hole in a central layer closest to the center and a hole in an adjacent layer adjacent to the central layer 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 C3 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 3] \n d/\u039b\u2264 0.22\u039b\u22122.01(\u039b\u226410.9 \u03bcm) \n d/\u039b\u2264\u2212 0.000769\u039b+0.398(10.9 \u03bcm\u2264\u039b\u226416.1 \u03bcm) \n d/\u039b\u2264 0.004\u039b+0.32(\u039b\u226516.1 \u03bcm) \n d/\u039b\u2265 0.00172\u039b+0.322(\u039b\u226415.2 \u03bcm) \n d/\u039b\u2265 0.0064\u039b+0.250(\u039b\u226515.2 \u03bcm)\u2003\u2003(C3)

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): 0.835590963424662
- 35 USC 102 Novelty (BERT): 0.5265201880306785
- Combined Prediction Score: 0.8046838858852636
- Mean Citation Score: 280.830506
- Max Citation Score: 347.38812
- Similarity Product: 251.24774401464705

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