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The high nonlinearity and the ability to control dispersion in PCF enable efficient translation between photon channels within the visible to-near-infrared spectral range, useful in quantum networks. Heralded single photons at 683 nm were translated to 659 nm with an efficiency of $28.6 \\pm 2.2$ percent. Second-order correlation measurements on the 683-nm and 659-nm fields yielded $g^{(2)}_{683}(0) = 0.21 \\pm 0.02$ and $g^{(2)}"},"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":"1006.4350","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-06-22T19:19:51Z","cross_cats_sorted":[],"title_canon_sha256":"775cb7e94d51d687df2dadeef559285aa12af4390216958dbffd227c18bb06a4","abstract_canon_sha256":"cf3bef05b0cce2f202c57755331db1bd95cbb5f0271460d83ffe19ce5d10cd77"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:41:16.094400Z","signature_b64":"ltt2DrpXXSsbPN+LiHTYCJ2IsMU1UQn5+RMgi+WabhsZX/81SY7ofqzBMMHKLp32pGa2RHjnoJ4bnxE2nzsCBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"19c3c35a3104eaf40107baab3c8f1404653b3926c52e01d09a625781333f8561","last_reissued_at":"2026-05-18T04:41:16.093911Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:41:16.093911Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Quantum Frequency Translation of Single-Photon States in Photonic Crystal Fiber","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"C.J. 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