{"id":"W2133003977","doi":"10.1109/lpt.2004.833041","title":"Reduction of the Impairment of Online OTDR Monitoring by Use of a Narrow Bandwidth OTDR and an Optical Bandpass Filter","year":2004,"lang":"en","type":"article","venue":"IEEE Photonics Technology Letters","topic":"Optical Network Technologies","field":"Engineering","cited_by":8,"is_retracted":false,"has_abstract":true,"ca_institutions":"Exfo Electro-Optical Engineering (Canada)","funders":"","keywords":"Optical time-domain reflectometer; Band-pass filter; Bandwidth (computing); Optical filter; Optics; Optical amplifier; Optical fiber; Materials science; Raman scattering; Computer science; Physics; Fiber optic sensor; Telecommunications; Raman spectroscopy; Polarization-maintaining optical fiber","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":[],"consensus_categories":[],"category_scores_codex":[0.00009690186,0.0001948487,0.0003368873,0.0001963188,0.00003239361,0.000007686206,0.0003513916,0.0003394003,0.000001404091],"category_scores_gemma":[0.00004469951,0.0001637289,0.00006691024,0.0004303859,0.0007366785,0.0001292925,0.00009393621,0.0004659988,2.760638e-7],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00009702874,"about_ca_system_score_gemma":0.00001483367,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00001890355,"about_ca_topic_score_gemma":0.000004328399,"domain_scores_codex":[0.9988514,0.0000126644,0.0004373379,0.0002285043,0.0001727028,0.0002974151],"domain_scores_gemma":[0.9991717,0.00003857292,0.0001111789,0.0005989809,0.00004549659,0.00003411713],"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":[0.00002021644,0.0001341573,0.001929239,0.00007129594,0.00006705201,0.000002825512,0.00007532813,0.02625199,0.9699815,0.0003824057,0.0001751203,0.0009088799],"study_design_scores_gemma":[0.0004805013,0.0002077791,0.0007980036,0.000109286,0.00004276041,0.00002700249,0.0001025834,0.003297954,0.9941738,0.0005417703,0.00006646105,0.0001521295],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9965077,0.0002516575,0.0004788796,0.001823332,0.0003237391,0.0002571393,0.00003281829,0.0003207293,0.000003989075],"genre_scores_gemma":[0.9742526,0.0001288746,0.02552827,0.00001933708,0.00001669466,0.00001928806,0.000002284271,0.00003097199,0.000001634063],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.02504939,"threshold_uncertainty_score":0.667667,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01061882420769282,"score_gpt":0.2219887004586734,"score_spread":0.2113698762509806,"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."}}