PATENT CLAIM ANALYSIS

Application Number: 15888666
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["385", "049000"]

Abstract:
An optical fiber for efficient coupling of optical signals to photonic devices. The optical fiber includes a Cl doped tapered core region with a changing outer diameter and changing maximum core refractive index to provide improved coupling at wavelength of interest to photonic devices. The photonic devices may be, for example, silicon photonic devices with an operating wavelength at or near 1310 nm, or at or near 1550 nm.

Claim (Index 1):
An optical fiber comprising: a length L, a first end face and a second end face, and a MFD at the first end face of the fiber that is different from MFD at another region of the fiber, the fiber further comprising:\n (I) a Cl doped silica based core comprising:\n (a) a first Cl doped core region having a maximum refractive index \u0394 0  such that 0.05%\u2264\u0394 0 \u22640.6% (relative to undoped silica), and an outer core diameter D 0 , wherein 5 microns\u2264D 0 \u226412 microns, said first Cl doped core region having maximum Cl concentration [Cl], where 0.5 wt. %\u2264[Cl]\u22645 wt. %; and \n (b) a Cl doped tapered core region situated adjacent to the first Cl doped core region and to the first fiber end face, the Cl doped tapered core region having a length L 2  where 0.05 mm\u2264L 2 \u226410 mm, and a maximum core refractive index \u0394c that decreases along the length of the tapered core region, the tapered region having an outer diameter that changes along the length L 2  and a maximum diameter D max , such that \n (i) D max \u2265D 0 +3 microns; (ii) 8 microns\u2264D max \u226470 microns; and (II) a silica based cladding surrounding the Cl doped silica based core.

Metadata:
- Claim Count in Document: 98.0
- Percentile: 88.0
- Lexical Diversity: 1.66667
- Patent Class: 385.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15660024', '15790726', '15659955', '15702961', '15091107']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8402471182556499
- 35 USC 102 Novelty (BERT): 0.5188971683853821
- Combined Prediction Score: 0.8081121232686233
- Mean Citation Score: 316.83476600000006
- Max Citation Score: 329.9588
- Similarity Product: 234.92297986361984

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