{"id":"W2068800274","doi":"10.1117/12.899543","title":"Distributed fiber beat length, birefringence and differential group delay measurement using BOTDA technique","year":2011,"lang":"en","type":"article","venue":"Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE","topic":"Optical Network Technologies","field":"Engineering","cited_by":4,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Ottawa","funders":"","keywords":"Beat (acoustics); Differential group delay; Birefringence; Optics; Brillouin zone; Group delay and phase delay; Wavelength; Brillouin scattering; Length measurement; Materials science; Polarization-maintaining optical fiber; Optical fiber; Physics; Polarization mode dispersion; Fiber optic sensor; Computer science; Telecommunications; Bandwidth (computing)","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":["metaepi_narrow"],"consensus_categories":[],"category_scores_codex":[0.0004589263,0.0004265306,0.0004575236,0.0001167971,0.00009030002,0.00008571736,0.0008213859,0.0003264654,0.00001398281],"category_scores_gemma":[0.0002834645,0.0003683486,0.0003622378,0.0003419553,0.0003387256,0.0004785462,0.0002847983,0.0004512657,0.000001115024],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002703651,"about_ca_system_score_gemma":0.00001214496,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00001028586,"about_ca_topic_score_gemma":2.516082e-7,"domain_scores_codex":[0.9977143,1.839879e-8,0.0006753137,0.0003984771,0.0006788488,0.0005330879],"domain_scores_gemma":[0.9986951,0.00006191333,0.0001808331,0.00008442809,0.000843432,0.0001342544],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.00007337795,0.0001349732,0.0004963881,0.0007817432,0.000698051,3.834952e-7,0.0001445716,0.0002518133,0.7348188,0.2609433,0.0006091423,0.001047473],"study_design_scores_gemma":[0.001867557,0.0007406373,0.004071992,0.001431789,0.0007052012,0.0001003655,0.001062714,0.2924068,0.6876725,0.005854647,0.002429754,0.001656015],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9960703,0.0002320011,0.001428688,0.0001267342,0.0001945164,0.0006712287,0.00004670839,0.0005865707,0.0006432766],"genre_scores_gemma":[0.7310105,0.0001525055,0.2683916,0.000009672601,0.0001472945,0.0001800773,0.00000395187,0.00009583659,0.000008569898],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.292155,"threshold_uncertainty_score":0.9998769,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02203974715777356,"score_gpt":0.2118180627877413,"score_spread":0.1897783156299678,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}