PATENT CLAIM ANALYSIS

Application Number: 15874582
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["372", "006000"]

Abstract:
An optical gain fiber for use in high power (e.g., greater than 500 W pump power) is proposed that is configured to exhibit a minimum bend radius such that the bend loss for the propagating LP 01  mode is greater than about 0.03 dB/m. It has been discovered that this bend radius criteria, which is less stringent, than that typically suggested in the art (e.g., bend loss less than about 0.03 dB/m), meets the modal stability requirements at high power operation, since the increase in operating temperature of the fiber laser or amplifier has been found to somewhat relax the bend radius requirement (which was heretofore only measured at “room temperature”, not “operating temperature”). Modal stability is defined in terms of a reduced presence of unwanted higher-order modes (such as the LP 11  mode) in the amplified output signal.

Claim (Index 8):
A fiber-based optical amplifying system comprising\n a pump source for providing an input pump beam operating at a predetermined wavelength, the input pump beam having an input power in excess of 500 W; an input optical fiber supporting the propagation of at least one input optical signal; an optical combiner receiving the input pump beam and the input optical signal, thereafter combining the inputs for transmission along an output signal path; and an optical gain fiber coupled to the output signal path from the optical combiner, the optical gain fiber having a rare-earth doped core region where the input pump beam interacts with and amplifies the input optical signal wherein the optical gain fiber is disposed in a coil configuration with a minimum bend radius such that, a room-temperature measured bend loss for a propagating LP 01  mode of the at least one input optical signal is greater than 0.03 dB/m.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 86.0
- Lexical Diversity: 1.78889
- Patent Class: 372.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['12583719', '13418262', '13418255', '11606718', '13440215']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8100273875504429
- 35 USC 102 Novelty (BERT): 0.4936658942880627
- Combined Prediction Score: 0.7783912382242049
- Mean Citation Score: 227.099008
- Max Citation Score: 242.39323
- Similarity Product: 193.89612264924344

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

Dataset: test