{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:ZQQGVNNXGHDXRRK2CKANEYI3L3","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":"e8d71a3d3a47dd56ceefd3bca2ef3c3f4fd88e314634858890d20f7230666fa5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2011-04-30T01:21:16Z","title_canon_sha256":"8816e4c94f4105a80dc96d5e234f69a8c2b05ebda22e257c01c4cc07b6f8d7d9"},"schema_version":"1.0","source":{"id":"1105.0040","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.0040","created_at":"2026-05-18T01:57:41Z"},{"alias_kind":"arxiv_version","alias_value":"1105.0040v2","created_at":"2026-05-18T01:57:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.0040","created_at":"2026-05-18T01:57:41Z"},{"alias_kind":"pith_short_12","alias_value":"ZQQGVNNXGHDX","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"ZQQGVNNXGHDXRRK2","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"ZQQGVNNX","created_at":"2026-05-18T12:26:50Z"}],"graph_snapshots":[{"event_id":"sha256:9219964069d4137cc62bee35de3162ed1c4103d1246b26e4652865eff4eed7c1","target":"graph","created_at":"2026-05-18T01:57:41Z","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":"The beam quality factor $M^2$ for the fundamental LP01 mode of a step-index fiber with a finite cladding diameter is calculated in the presence of gain, in a closed form, as a function of the complex generalized V-number. It is shown that the conventional infinite cladding diameter approximation cannot be used for index-antiguided gain-guided fibers, and the rigorous analysis presented in this paper is required for accurate prediction of the beam quality factor, as reported in recent experimental measurements.","authors_text":"Arash Mafi, Krishna Mohan Gundu, Parisa Gandomkar Yarandi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2011-04-30T01:21:16Z","title":"On the Beam Profile and Beam Quality of Gain-Guided Index-Antiguided Fibers with Finite Cladding Boundary"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.0040","kind":"arxiv","version":2},"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":"sha256:8ceab7ef2469206779d1437180172c8cf80735aeeb6f4d5bf11175d8c4758f49","target":"record","created_at":"2026-05-18T01:57:41Z","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":"e8d71a3d3a47dd56ceefd3bca2ef3c3f4fd88e314634858890d20f7230666fa5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2011-04-30T01:21:16Z","title_canon_sha256":"8816e4c94f4105a80dc96d5e234f69a8c2b05ebda22e257c01c4cc07b6f8d7d9"},"schema_version":"1.0","source":{"id":"1105.0040","kind":"arxiv","version":2}},"canonical_sha256":"cc206ab5b731c778c55a1280d2611b5ee23d464c2fda72ad89818874df8ebcb6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cc206ab5b731c778c55a1280d2611b5ee23d464c2fda72ad89818874df8ebcb6","first_computed_at":"2026-05-18T01:57:41.199346Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:57:41.199346Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"w86gz6qNu1fnZ5h8pUbIpPzlJYs9j7DcuhzXjeMGnTN9TEu3ACyckdyelfLP1jT9kPslsOdCT6H+zSwyxsjUAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:57:41.200023Z","signed_message":"canonical_sha256_bytes"},"source_id":"1105.0040","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8ceab7ef2469206779d1437180172c8cf80735aeeb6f4d5bf11175d8c4758f49","sha256:9219964069d4137cc62bee35de3162ed1c4103d1246b26e4652865eff4eed7c1"],"state_sha256":"95a7c05467d776b58535c340841474d8203e942727d26881c8d1f5ea1546e746"}