{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:IIHGB7K4IHAAFONBU6J7LV26TY","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"9fa1579dc9e09035677310bc885a820e05efecc2a9eee8101baf63e030eb9ecf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-05-29T01:36:00Z","title_canon_sha256":"a66c922dd6503b2a92c7d01df9a77d877f5c5b2de2d134518338a3f4a37f26d8"},"schema_version":"1.0","source":{"id":"1205.6246","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1205.6246","created_at":"2026-05-18T03:54:14Z"},{"alias_kind":"arxiv_version","alias_value":"1205.6246v1","created_at":"2026-05-18T03:54:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1205.6246","created_at":"2026-05-18T03:54:14Z"},{"alias_kind":"pith_short_12","alias_value":"IIHGB7K4IHAA","created_at":"2026-05-18T12:27:09Z"},{"alias_kind":"pith_short_16","alias_value":"IIHGB7K4IHAAFONB","created_at":"2026-05-18T12:27:09Z"},{"alias_kind":"pith_short_8","alias_value":"IIHGB7K4","created_at":"2026-05-18T12:27:09Z"}],"graph_snapshots":[{"event_id":"sha256:c7331da7f3ea21e9694ee707211f40cefbe1da1ecd27795d99562137abd006e6","target":"graph","created_at":"2026-05-18T03:54:14Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Frequency modulation of a continuous wave laser source enables generation of photons at multiple frequencies from a single pump laser. Such multiple closely spaced laser lines are important for high data rate QAM in dense-WDM networks. In this paper we present a monolithic silicon acousto-optic frequency modulator (AOFM) operating at 1.09GHz. We demonstrate frequency modulation of a 1564nm wavelength pump laser, resulting in generation of sideband laser lines spaced by 0.009nm.","authors_text":"Siddharth Tallur, Sunil A. Bhave","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-05-29T01:36:00Z","title":"Acousto-optic frequency modulator"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.6246","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:3d886ade77e6a3c0081fa26a1ef7a2f2b04bc89062f2867da9d53d00a927a063","target":"record","created_at":"2026-05-18T03:54:14Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"9fa1579dc9e09035677310bc885a820e05efecc2a9eee8101baf63e030eb9ecf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-05-29T01:36:00Z","title_canon_sha256":"a66c922dd6503b2a92c7d01df9a77d877f5c5b2de2d134518338a3f4a37f26d8"},"schema_version":"1.0","source":{"id":"1205.6246","kind":"arxiv","version":1}},"canonical_sha256":"420e60fd5c41c002b9a1a793f5d75e9e0fe468962db209789772df3355c8a711","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"420e60fd5c41c002b9a1a793f5d75e9e0fe468962db209789772df3355c8a711","first_computed_at":"2026-05-18T03:54:14.735712Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:54:14.735712Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OjQv1l4SprSfRiyFYKSSMbqYvBxmYFYStWh09KVKP24QTrqcPuMsTB5vlBUSyFbtJN+Pz4Ras8wTMBwR2O7iAg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:54:14.736130Z","signed_message":"canonical_sha256_bytes"},"source_id":"1205.6246","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3d886ade77e6a3c0081fa26a1ef7a2f2b04bc89062f2867da9d53d00a927a063","sha256:c7331da7f3ea21e9694ee707211f40cefbe1da1ecd27795d99562137abd006e6"],"state_sha256":"3580a860a015d09b2832e3a4d15335a87769f2e33d380f6cfe16dad5f1f39bc9"}