{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:GDQXUV7I2RFSALEENLIVQRH3RJ","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":"5fb08d4afa4d4acfdbdb2581eb01ef5e47b917cd700dc41e160a69a8afe0d59c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2026-05-13T17:51:21Z","title_canon_sha256":"18bd57c7bd581f3c0089cf3dea333710b3ec096e975c7025a537761a1527246b"},"schema_version":"1.0","source":{"id":"2605.13828","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.13828","created_at":"2026-05-18T02:44:15Z"},{"alias_kind":"arxiv_version","alias_value":"2605.13828v1","created_at":"2026-05-18T02:44:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.13828","created_at":"2026-05-18T02:44:15Z"},{"alias_kind":"pith_short_12","alias_value":"GDQXUV7I2RFS","created_at":"2026-05-18T12:33:37Z"},{"alias_kind":"pith_short_16","alias_value":"GDQXUV7I2RFSALEE","created_at":"2026-05-18T12:33:37Z"},{"alias_kind":"pith_short_8","alias_value":"GDQXUV7I","created_at":"2026-05-18T12:33:37Z"}],"graph_snapshots":[{"event_id":"sha256:a7d42e932ce5cf194e7f9264c73dc4716e8eb59758e9988feaf58df1c828cc90","target":"graph","created_at":"2026-05-18T02:44:15Z","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":4,"items":[{"attestation":"unclaimed","claim_id":"C1","kind":"strongest_claim","source":"verdict.strongest_claim","status":"machine_extracted","text":"Here, we demonstrate ytterbium-based optical gain integrated into an aluminum oxide photonic platform, achieving both single-mode lasing and optical amplification in the near-infrared regime. This platform delivers optical amplification with output powers exceeding 0.5 W, an optical-to-optical conversion efficiency above 70%, and a noise figure of 3.3 dB, approaching the quantum limit for phase-insensitive amplification. Furthermore, we achieve femtosecond pulse amplification to a record peak power of 14 kW, enabling supercontinuum generation with visible dispersive waves extending from 780 to 476 nm in conjunction with nonlinear photonic devices."},{"attestation":"unclaimed","claim_id":"C2","kind":"weakest_assumption","source":"verdict.weakest_assumption","status":"machine_extracted","text":"Ytterbium ions can be incorporated into the aluminum oxide matrix at sufficient concentration and uniformity to deliver the stated gain, efficiency, and low noise without quenching, scattering losses, or fabrication-induced defects that would prevent heterogeneous integration into standard photonic circuits."},{"attestation":"unclaimed","claim_id":"C3","kind":"one_line_summary","source":"verdict.one_line_summary","status":"machine_extracted","text":"Ytterbium-doped aluminum oxide photonic platform achieves single-mode lasing, >0.5 W amplification at >70% efficiency and 3.3 dB noise figure, 14 kW peak-power femtosecond pulses, and visible supercontinuum generation from 780 to 476 nm."},{"attestation":"unclaimed","claim_id":"C4","kind":"headline","source":"verdict.pith_extraction.headline","status":"machine_extracted","text":"Ytterbium ions integrated into aluminum oxide deliver high-power near-infrared amplification and visible supercontinuum on chip."}],"snapshot_sha256":"358b808b3bd56ca348b73d2da947967ab0880eca14d86e1c4a19795ae275e65d"},"formal_canon":{"evidence_count":1,"snapshot_sha256":"03cf784e5aad903b7de42946acf1d7ae767ae2c624941e47cb254d8c5963f784"},"paper":{"abstract_excerpt":"Rare-earth gain media form the foundation of modern optical communications, emerging quantum hardware, and ultrafast optics. While chip-scale integration can enable fiber-like, and potentially beyond-fiber, functionality with unprecedented scalability, development in the visible and near-infrared remains in its early stages. Here, we demonstrate ytterbium-based optical gain integrated into an aluminum oxide photonic platform, achieving both single-mode lasing and optical amplification in the near-infrared regime. This platform delivers optical amplification with output powers exceeding 0.5 W, ","authors_text":"Danxian Liu, David R. Carlson, Erik W. Masselink, Grisha Spektor, Kiyoul Yang, Nathan Brooks, Peter Chang, Scott A. Diddams, Scott B. Papp, Tianyi Zeng, Tsung-Han Wu, Zachary L. Newman","cross_cats":[],"headline":"Ytterbium ions integrated into aluminum oxide deliver high-power near-infrared amplification and visible supercontinuum on chip.","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2026-05-13T17:51:21Z","title":"Integrated ytterbium gain for visible-near-infrared photonics"},"references":{"count":79,"internal_anchors":0,"resolved_work":79,"sample":[{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":1,"title":"or effectiveχ (2) processes in silicon nitride [66– 68]. Looking forward, full integration of a pulse generator can be realized on the Yb-gain platform established in this work via a Mamyshev oscillat","work_id":"c8bdcd20-e15f-4e00-9578-cc3350754d88","year":null},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":2,"title":"Desurvire, E., Simpson, J. R. & Becker, P. High- gain erbium-doped traveling-wave fiber amplifier.Optics Letters12, 888–890 (1987)","work_id":"b2c28cd5-bbf3-4d9b-8826-dded59e267ad","year":1987},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":3,"title":"Hanna, D.et al.Continuous-wave oscillation of a monomode ytterbium-doped fibre laser.Electronics Letters24, 1111–1113 (1988)","work_id":"43afcb80-0c42-48f0-bf11-0753553cd3e1","year":1988},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":4,"title":"Anderegg, L.et al.An optical tweezer array of ultracold molecules.Science365, 1156–1158 (2019)","work_id":"e9421285-7ffe-414e-88b0-5ef4c59eb05f","year":2019},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":5,"title":"J.et al.A tweezer array with 6,100 highly coherent atomic qubits.Nature647, 60–67 (2025)","work_id":"2b9827e9-7997-4676-a593-b34bf21db70a","year":2025}],"snapshot_sha256":"be444fea8d641192e512738c924de71c9a90831f0f56310b7f98db574e1aa92a"},"source":{"id":"2605.13828","kind":"arxiv","version":1},"verdict":{"created_at":"2026-05-14T17:28:02.072978Z","id":"d16caeb3-06ab-4df6-b9a1-0b71f54eb3fe","model_set":{"reader":"grok-4.3"},"one_line_summary":"Ytterbium-doped aluminum oxide photonic platform achieves single-mode lasing, >0.5 W amplification at >70% efficiency and 3.3 dB noise figure, 14 kW peak-power femtosecond pulses, and visible supercontinuum generation from 780 to 476 nm.","pipeline_version":"pith-pipeline@v0.9.0","pith_extraction_headline":"Ytterbium ions integrated into aluminum oxide deliver high-power near-infrared amplification and visible supercontinuum on chip.","strongest_claim":"Here, we demonstrate ytterbium-based optical gain integrated into an aluminum oxide photonic platform, achieving both single-mode lasing and optical amplification in the near-infrared regime. This platform delivers optical amplification with output powers exceeding 0.5 W, an optical-to-optical conversion efficiency above 70%, and a noise figure of 3.3 dB, approaching the quantum limit for phase-insensitive amplification. Furthermore, we achieve femtosecond pulse amplification to a record peak power of 14 kW, enabling supercontinuum generation with visible dispersive waves extending from 780 to 476 nm in conjunction with nonlinear photonic devices.","weakest_assumption":"Ytterbium ions can be incorporated into the aluminum oxide matrix at sufficient concentration and uniformity to deliver the stated gain, efficiency, and low noise without quenching, scattering losses, or fabrication-induced defects that would prevent heterogeneous integration into standard photonic circuits."}},"verdict_id":"d16caeb3-06ab-4df6-b9a1-0b71f54eb3fe"}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:3a12da4bf4c33395f54d00eeaca67ad60219540d73bf75eb25e16d7094fec775","target":"record","created_at":"2026-05-18T02:44:15Z","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":"5fb08d4afa4d4acfdbdb2581eb01ef5e47b917cd700dc41e160a69a8afe0d59c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2026-05-13T17:51:21Z","title_canon_sha256":"18bd57c7bd581f3c0089cf3dea333710b3ec096e975c7025a537761a1527246b"},"schema_version":"1.0","source":{"id":"2605.13828","kind":"arxiv","version":1}},"canonical_sha256":"30e17a57e8d44b202c846ad15844fb8a5d0b1e2c82e0b4161ffa488204e596d1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"30e17a57e8d44b202c846ad15844fb8a5d0b1e2c82e0b4161ffa488204e596d1","first_computed_at":"2026-05-18T02:44:15.132004Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:44:15.132004Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hyp4FXL7wDVrxuk4X7IIBTSH8/5bCSYm8Z/6Pt7yKQtRNO+iGXtiLagCpbwcLhWjbsOez1uTM5xfZ9HWVFjVBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:44:15.132509Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.13828","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3a12da4bf4c33395f54d00eeaca67ad60219540d73bf75eb25e16d7094fec775","sha256:a7d42e932ce5cf194e7f9264c73dc4716e8eb59758e9988feaf58df1c828cc90"],"state_sha256":"0fc3315834b7850932bcfe5cdc03e49eaf561df522620c326fc1cbdb8a3131df"}