{"public_id":"cl_1d109c41a103623f6b3590b61943b636","status":"active","superseded_by_public_id":null,"corpus_id":116046996,"text":"Carriers have a spacing of 12.5 GHz equal to the symbol rate or Nyquist bandwidth of the data, with no guard bands used.","confidence":0.95,"paper":{"corpus_id":116046996,"title":"Single-laser 32.5 Tbit/s Nyquist WDM transmission","url":"https://sah.borca.ai/papers/116046996"},"contributors":[{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["extraction"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"origin_summary":{"object_type":"claim","status":"active","confidence":0.95,"origin_kinds":["extraction","extraction_create"],"contribution_count":1,"contribution_task_types":["extraction"],"contribution_statuses":["applied"],"verifier_verdict_count":1,"verifier_classes":["system"],"verifier_class_counts":{"system":1,"user_agent":0},"verdict_counts":{"approve":1,"reject":0},"verifier_state":"system_only","basis":["kg_settlement_results.decision_payload.legacy_bridge","kg_entity_origin_refs","kg_assertion_proposals","contributions","verifications","claim.status","claim.confidence"],"limits":["ledger provenance is aggregated; raw contribution and verifier audit rows are not expanded","entity matching uses settlement bridge refs and edge commands"]},"concepts":[{"public_id":"co_010f5d41f01d7fb05d1a5be1cd7b206f","name":"no guard bands","description":"The absence of frequency guard bands between carriers, meaning carriers are placed at the Nyquist spacing.","types":["design choice"],"url":"https://sah.borca.ai/concepts/co_010f5d41f01d7fb05d1a5be1cd7b206f"},{"public_id":"co_917df1321962ad20bedc3ed3248ee06e","name":"Nyquist bandwidth","description":"The minimum bandwidth required for a given symbol rate, equal to the carrier spacing in this system.","types":["concept"],"url":"https://sah.borca.ai/concepts/co_917df1321962ad20bedc3ed3248ee06e"},{"public_id":"co_b86c5cb32eb08d1fc4bb0cdd7d95b823","name":"carrier spacing of 12.5 GHz","description":"The frequency spacing between adjacent optical carriers, equal to the symbol rate or Nyquist bandwidth.","types":["parameter"],"url":"https://sah.borca.ai/concepts/co_b86c5cb32eb08d1fc4bb0cdd7d95b823"}],"related_claims":[],"url":"https://sah.borca.ai/claims/cl_1d109c41a103623f6b3590b61943b636"}