PATENT CLAIM ANALYSIS

Application Number: 16515132
Application Type: Utility
Filing Date: 2019-07
Publication Date: 2019-11
Patent Classification: ["385", "122000"]

Abstract:
Optical fiber filters and uses thereof are presented. In typical implementations, there is provided a FBG taking deleterious light out of a fiber core without reflecting it into the fiber core. It also allows the unhindered transmission of useful light at a wavelength outside of the spectral band covered by the deleterious light. The filter couples the incoming deleterious light to cladding modes propagating in the opposite direction without coupling the incoming useful light to core or cladding modes propagating in the opposite direction. The filter may for example be useful as a Raman or ASE filter in a laser cavity of other optical devices.

Claim (Index 17):
A bidirectional filter for filtering a light beam having a useful component and a deleterious component, the bidirectional filter comprising:\n a pair of Fiber Bragg gratings (FBG), each FBG comprising:\n an optical fiber path having a core and at least one cladding surrounding said core; and \n a refractive index modulation in the core of the optical fiber path and having a chirped period, \n wherein the FBGs of said pair are disposed in a cascade in opposite orientations with the period of the corresponding refractive index modulation decreasing progressively towards the other one of said FBGs, the refractive index modulation of each FBG being configured to allow propagation of the useful component of the light beam through the FBG in a core mode and to couple the deleterious component of the light beam into one or more counter propagating cladding mode of the optical fiber path.

Metadata:
- Claim Count in Document: 128.0
- Percentile: 100.0
- Lexical Diversity: 1.65672
- Patent Class: 385.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15880834', '14884642', '14897973', '16136223', '14371271']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8276749356348506
- 35 USC 102 Novelty (BERT): 0.6053437578973347
- Combined Prediction Score: 0.8054418178610991
- Mean Citation Score: 353.01908999999995
- Max Citation Score: 612.4399400000002
- Similarity Product: 463.2417885491623

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