{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:7JIH7OYW6UMLI744BAG2NAKLH2","short_pith_number":"pith:7JIH7OYW","canonical_record":{"source":{"id":"1802.00485","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-01-30T01:38:54Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"a85d77aadb5443338f19571e1d5c2fdaf0005663e789f9a195dd5a887da04a06","abstract_canon_sha256":"c28be018a2e0013935e5c6977724689376faf41017880ef7f00f1de8e056d2c0"},"schema_version":"1.0"},"canonical_sha256":"fa507fbb16f518b47f9c080da6814b3e87266bc23ef221964ab10356a383481f","source":{"kind":"arxiv","id":"1802.00485","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.00485","created_at":"2026-05-18T00:24:33Z"},{"alias_kind":"arxiv_version","alias_value":"1802.00485v1","created_at":"2026-05-18T00:24:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.00485","created_at":"2026-05-18T00:24:33Z"},{"alias_kind":"pith_short_12","alias_value":"7JIH7OYW6UML","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_16","alias_value":"7JIH7OYW6UMLI744","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_8","alias_value":"7JIH7OYW","created_at":"2026-05-18T12:32:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:7JIH7OYW6UMLI744BAG2NAKLH2","target":"record","payload":{"canonical_record":{"source":{"id":"1802.00485","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-01-30T01:38:54Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"a85d77aadb5443338f19571e1d5c2fdaf0005663e789f9a195dd5a887da04a06","abstract_canon_sha256":"c28be018a2e0013935e5c6977724689376faf41017880ef7f00f1de8e056d2c0"},"schema_version":"1.0"},"canonical_sha256":"fa507fbb16f518b47f9c080da6814b3e87266bc23ef221964ab10356a383481f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:24:33.055172Z","signature_b64":"0vt4xjHoHTt74w9fCT9DhPk617dxq9xMeXSPf8+B3KYcxEIYPIQLZbtIn4+rhKXr/4ub0tbOjWcJDktaPmRcAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fa507fbb16f518b47f9c080da6814b3e87266bc23ef221964ab10356a383481f","last_reissued_at":"2026-05-18T00:24:33.054736Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:24:33.054736Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1802.00485","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:24:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QXiTkT7IXO88u2CDzuEjhvlbbbMxz2aLIPFr7GQURNuksDtYsW1V98i0+L+qf8fNpGfc1BqVNU2jT2x/+nKFBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T17:32:37.776708Z"},"content_sha256":"3dad81f5db91ae5fd6a17917093706394586087db46e3140724d31dfd3dedf70","schema_version":"1.0","event_id":"sha256:3dad81f5db91ae5fd6a17917093706394586087db46e3140724d31dfd3dedf70"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:7JIH7OYW6UMLI744BAG2NAKLH2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Investigation of the Electronical and Optical Properties of Quantum Well Lasers with Slightly Doped Tunnel Junction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"physics.app-ph","authors_text":"Fangyuan Meng, Hongyan Yu, Huolei Wang, Jiaoqing Pan, Pengfei Wang, Xuliang Zhou, Yajie Li","submitted_at":"2018-01-30T01:38:54Z","abstract_excerpt":"We experimentally investigate and analyze the electrical and optical characteristics of GaAs-based conventional quantum well laser diodes and the quantum well laser diodes with slightly-doped tunnel junction. It was found that TJ LD show a nonlinear S-shape I-V characteristic.It was also found that the internal quantum efficiency measured by 21% and 87.3% for the TJ LD and the conventional LD, respectively. Furthermore, compared with the conventional LD, it was found that we could achieve 15 nm broadband spectrum from the TJ LD due to lasing dynamics reflects the current dynamics. The results "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.00485","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:24:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VPmGa4kqbnCubpPRulm/ZyFozb0dSVPAIuE0a8Hm0oTeWccIAMRrmDe0rdS6imTqc9JXQjBF2UYctLPkQuz6BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T17:32:37.777056Z"},"content_sha256":"ac62f1dd2d879911c3f5de1de68adfd1d19c955efa0c283042e9844d59d8f6f8","schema_version":"1.0","event_id":"sha256:ac62f1dd2d879911c3f5de1de68adfd1d19c955efa0c283042e9844d59d8f6f8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7JIH7OYW6UMLI744BAG2NAKLH2/bundle.json","state_url":"https://pith.science/pith/7JIH7OYW6UMLI744BAG2NAKLH2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7JIH7OYW6UMLI744BAG2NAKLH2/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-01T17:32:37Z","links":{"resolver":"https://pith.science/pith/7JIH7OYW6UMLI744BAG2NAKLH2","bundle":"https://pith.science/pith/7JIH7OYW6UMLI744BAG2NAKLH2/bundle.json","state":"https://pith.science/pith/7JIH7OYW6UMLI744BAG2NAKLH2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7JIH7OYW6UMLI744BAG2NAKLH2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:7JIH7OYW6UMLI744BAG2NAKLH2","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":"c28be018a2e0013935e5c6977724689376faf41017880ef7f00f1de8e056d2c0","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-01-30T01:38:54Z","title_canon_sha256":"a85d77aadb5443338f19571e1d5c2fdaf0005663e789f9a195dd5a887da04a06"},"schema_version":"1.0","source":{"id":"1802.00485","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.00485","created_at":"2026-05-18T00:24:33Z"},{"alias_kind":"arxiv_version","alias_value":"1802.00485v1","created_at":"2026-05-18T00:24:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.00485","created_at":"2026-05-18T00:24:33Z"},{"alias_kind":"pith_short_12","alias_value":"7JIH7OYW6UML","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_16","alias_value":"7JIH7OYW6UMLI744","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_8","alias_value":"7JIH7OYW","created_at":"2026-05-18T12:32:11Z"}],"graph_snapshots":[{"event_id":"sha256:ac62f1dd2d879911c3f5de1de68adfd1d19c955efa0c283042e9844d59d8f6f8","target":"graph","created_at":"2026-05-18T00:24:33Z","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":"We experimentally investigate and analyze the electrical and optical characteristics of GaAs-based conventional quantum well laser diodes and the quantum well laser diodes with slightly-doped tunnel junction. It was found that TJ LD show a nonlinear S-shape I-V characteristic.It was also found that the internal quantum efficiency measured by 21% and 87.3% for the TJ LD and the conventional LD, respectively. Furthermore, compared with the conventional LD, it was found that we could achieve 15 nm broadband spectrum from the TJ LD due to lasing dynamics reflects the current dynamics. The results ","authors_text":"Fangyuan Meng, Hongyan Yu, Huolei Wang, Jiaoqing Pan, Pengfei Wang, Xuliang Zhou, Yajie Li","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-01-30T01:38:54Z","title":"Investigation of the Electronical and Optical Properties of Quantum Well Lasers with Slightly Doped Tunnel Junction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.00485","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":"sha256:3dad81f5db91ae5fd6a17917093706394586087db46e3140724d31dfd3dedf70","target":"record","created_at":"2026-05-18T00:24:33Z","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":"c28be018a2e0013935e5c6977724689376faf41017880ef7f00f1de8e056d2c0","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-01-30T01:38:54Z","title_canon_sha256":"a85d77aadb5443338f19571e1d5c2fdaf0005663e789f9a195dd5a887da04a06"},"schema_version":"1.0","source":{"id":"1802.00485","kind":"arxiv","version":1}},"canonical_sha256":"fa507fbb16f518b47f9c080da6814b3e87266bc23ef221964ab10356a383481f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fa507fbb16f518b47f9c080da6814b3e87266bc23ef221964ab10356a383481f","first_computed_at":"2026-05-18T00:24:33.054736Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:24:33.054736Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0vt4xjHoHTt74w9fCT9DhPk617dxq9xMeXSPf8+B3KYcxEIYPIQLZbtIn4+rhKXr/4ub0tbOjWcJDktaPmRcAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:24:33.055172Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.00485","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3dad81f5db91ae5fd6a17917093706394586087db46e3140724d31dfd3dedf70","sha256:ac62f1dd2d879911c3f5de1de68adfd1d19c955efa0c283042e9844d59d8f6f8"],"state_sha256":"0c08f60b2ae5e75f8a796c5f97cba0540e86a3133279b0c9b9cd921476972d38"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xRe/ZZtk9mLJov5cc+NJj16RmEG3QgB0LgMmr4Jm0jSWKWQPa3GbJ1AzrAccfKzukS7GzfQRUAZJFvSiteLlDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T17:32:37.779061Z","bundle_sha256":"5fbc997e6e45ebdea73196ab269e48a751a34c4c340514fd0594da4f8aedccad"}}