{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2022:7QYANNR3VKSITXUUUNHZ52ARRV","short_pith_number":"pith:7QYANNR3","schema_version":"1.0","canonical_sha256":"fc3006b63baaa489de94a34f9ee8118d7d6ecca2d40225efc6e500c3830a6c98","source":{"kind":"arxiv","id":"2206.01173","version":2},"attestation_state":"computed","paper":{"title":"Integrated Passive Nonlinear Optical Isolators","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Alexander D. White, Geun Ho Ahn, Jelena Vu\\v{c}kovi\\'c, John E. Bowers, Kasper Van Gasse, Ki Youl Yang, Lin Chang","submitted_at":"2022-06-02T17:42:22Z","abstract_excerpt":"Fiber and bulk-optical isolators are widely used to stabilize laser cavities by preventing unwanted feedback. However, their integrated counterparts have been slow to be adopted. While several strategies for on-chip optical isolation have been realized, these rely on either integration of magneto-optic materials or high frequency modulation with acousto-optic or electro-optic modulators. Here, we demonstrate an integrated approach for passively isolating a continuous wave laser using the intrinsically non-reciprocal Kerr nonlinearity in ring resonators. Using silicon nitride as a model platfor"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2206.01173","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2022-06-02T17:42:22Z","cross_cats_sorted":[],"title_canon_sha256":"7a9eafe978e3454a9d3c39b00dd4275e1d58fbd80c30ce9a73baaea2dabfc895","abstract_canon_sha256":"b4d1c5b9d9144eed479262e1c2a038b79e2d6371b8c7032af13ed7399d308126"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:21:41.771372Z","signature_b64":"q52399ELez5yEl1l9h2R7mxkYQnekaYRKk6gL3MiyELkWc1tkzBR/QN0y8zvE3fCZIaCBC71LfmQd4pKhoRlAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fc3006b63baaa489de94a34f9ee8118d7d6ecca2d40225efc6e500c3830a6c98","last_reissued_at":"2026-07-05T05:21:41.770865Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:21:41.770865Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Integrated Passive Nonlinear Optical Isolators","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Alexander D. White, Geun Ho Ahn, Jelena Vu\\v{c}kovi\\'c, John E. Bowers, Kasper Van Gasse, Ki Youl Yang, Lin Chang","submitted_at":"2022-06-02T17:42:22Z","abstract_excerpt":"Fiber and bulk-optical isolators are widely used to stabilize laser cavities by preventing unwanted feedback. However, their integrated counterparts have been slow to be adopted. While several strategies for on-chip optical isolation have been realized, these rely on either integration of magneto-optic materials or high frequency modulation with acousto-optic or electro-optic modulators. Here, we demonstrate an integrated approach for passively isolating a continuous wave laser using the intrinsically non-reciprocal Kerr nonlinearity in ring resonators. Using silicon nitride as a model platfor"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2206.01173","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2206.01173/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"2206.01173","created_at":"2026-07-05T05:21:41.770938+00:00"},{"alias_kind":"arxiv_version","alias_value":"2206.01173v2","created_at":"2026-07-05T05:21:41.770938+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2206.01173","created_at":"2026-07-05T05:21:41.770938+00:00"},{"alias_kind":"pith_short_12","alias_value":"7QYANNR3VKSI","created_at":"2026-07-05T05:21:41.770938+00:00"},{"alias_kind":"pith_short_16","alias_value":"7QYANNR3VKSITXUU","created_at":"2026-07-05T05:21:41.770938+00:00"},{"alias_kind":"pith_short_8","alias_value":"7QYANNR3","created_at":"2026-07-05T05:21:41.770938+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/7QYANNR3VKSITXUUUNHZ52ARRV","json":"https://pith.science/pith/7QYANNR3VKSITXUUUNHZ52ARRV.json","graph_json":"https://pith.science/api/pith-number/7QYANNR3VKSITXUUUNHZ52ARRV/graph.json","events_json":"https://pith.science/api/pith-number/7QYANNR3VKSITXUUUNHZ52ARRV/events.json","paper":"https://pith.science/paper/7QYANNR3"},"agent_actions":{"view_html":"https://pith.science/pith/7QYANNR3VKSITXUUUNHZ52ARRV","download_json":"https://pith.science/pith/7QYANNR3VKSITXUUUNHZ52ARRV.json","view_paper":"https://pith.science/paper/7QYANNR3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2206.01173&json=true","fetch_graph":"https://pith.science/api/pith-number/7QYANNR3VKSITXUUUNHZ52ARRV/graph.json","fetch_events":"https://pith.science/api/pith-number/7QYANNR3VKSITXUUUNHZ52ARRV/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/7QYANNR3VKSITXUUUNHZ52ARRV/action/timestamp_anchor","attest_storage":"https://pith.science/pith/7QYANNR3VKSITXUUUNHZ52ARRV/action/storage_attestation","attest_author":"https://pith.science/pith/7QYANNR3VKSITXUUUNHZ52ARRV/action/author_attestation","sign_citation":"https://pith.science/pith/7QYANNR3VKSITXUUUNHZ52ARRV/action/citation_signature","submit_replication":"https://pith.science/pith/7QYANNR3VKSITXUUUNHZ52ARRV/action/replication_record"}},"created_at":"2026-07-05T05:21:41.770938+00:00","updated_at":"2026-07-05T05:21:41.770938+00:00"}