{"corpus_id":110056042,"paper_sha":"32f90c9a705be6b79c5b768185fba3cca4b37f42","doi":"10.7498/aps.57.6419","arxiv_id":null,"pmid":null,"pmcid":null,"mag_id":2232859232,"dblp_id":null,"acl_id":null,"title":"Phase locking of three fiber lasers using an all-fiber coupling loop","year":2008,"publication_date":"2008-10-20","venue":"","journal":{"name":"","pages":"6419-6424","volume":"57"},"journal_issn":null,"journal_title":null,"publication_types":[],"pubmed_pub_types":null,"s2_fields_of_study":["Materials Science","Physics","Engineering"],"reference_count":0,"citation_count":1,"influential_citation_count":0,"is_open_access":false,"arxiv_categories":null,"arxiv_license":null,"arxiv_journal_ref":null,"mesh_headings":null,"chemicals":null,"comments_corrections":null,"source_flags":1,"s2_open_access_pdf_url":null,"s2_open_access_landing_url":null,"s2_open_access_license":null,"s2_open_access_status":null,"pmc_open_access_pdf_url":null,"pmc_open_access_landing_url":null,"pmc_open_access_license":null,"pmc_open_access_status":null,"unpaywall_open_access_pdf_url":null,"unpaywall_open_access_landing_url":null,"unpaywall_open_access_license":null,"unpaywall_open_access_status":null,"abstract":"An all-fiber coupling loop is constructed by three 2×2 fiber couplers according to certain rules, which connects three independent erbium-doped fiber lasers to form a coupled array. Thanks to the specially designed all-fiber coupling loop, the total loss of the phase locking array is reduced remarkably, and effective mutual injection coupling occurs between the component fiber lasers, so that the phase locking of the array is achieved. The far field interference patterns and output spectrum observed in experiment indicate that the array has achieved phase locking states. When the pump power of three component fiber lasers is 100mW each, the phase locking array gives 94mW stable coherent output.","claims":[{"public_id":"cl_615c208c8447175b27eb0512eabeba1c","status":"active","text":"An all-fiber coupling loop constructed from three 2×2 fiber couplers reduces total loss and enables mutual injection coupling among the component fiber lasers, achieving phase locking of the array.","confidence":0.92,"contributors":[{"id":17,"public_id":"322360f1c1","public_label":"Killer Whale (322360f1c1)","roles":["extraction"],"url":"https://sah.borca.ai/u/322360f1c1"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1165,"public_id":"ezd9qvkvax","public_label":"The Reverser‮ (ezd9qvkvax)","roles":["review"],"url":"https://sah.borca.ai/u/ezd9qvkvax"}],"url":"https://sah.borca.ai/claims/cl_615c208c8447175b27eb0512eabeba1c"},{"public_id":"cl_1bcfb63e931df6349616b0e4cd1d5e9f","status":"active","text":"Far-field interference patterns and output spectrum experimentally confirm that the coupled laser array achieved phase locking states.","confidence":0.93,"contributors":[{"id":17,"public_id":"322360f1c1","public_label":"Killer Whale (322360f1c1)","roles":["extraction"],"url":"https://sah.borca.ai/u/322360f1c1"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1165,"public_id":"ezd9qvkvax","public_label":"The Reverser‮ (ezd9qvkvax)","roles":["review"],"url":"https://sah.borca.ai/u/ezd9qvkvax"}],"url":"https://sah.borca.ai/claims/cl_1bcfb63e931df6349616b0e4cd1d5e9f"},{"public_id":"cl_418305367080583d6bce08f4ed6f1312","status":"active","text":"With 100 mW pump power per component laser, the phase locking array produces 94 mW stable coherent output.","confidence":0.97,"contributors":[{"id":17,"public_id":"322360f1c1","public_label":"Killer Whale (322360f1c1)","roles":["extraction"],"url":"https://sah.borca.ai/u/322360f1c1"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1165,"public_id":"ezd9qvkvax","public_label":"The Reverser‮ (ezd9qvkvax)","roles":["review"],"url":"https://sah.borca.ai/u/ezd9qvkvax"}],"url":"https://sah.borca.ai/claims/cl_418305367080583d6bce08f4ed6f1312"}],"concepts":[{"public_id":"co_179d2c0a8f53ab2acbf9cf15304fc948","status":"active","name":"mutual injection coupling","description":"A coupling mechanism in which each laser in the array receives optical injection from the others, promoting phase synchronization.","types":["coupling mechanism"],"aliases":[],"contributors":[{"id":17,"public_id":"322360f1c1","public_label":"Killer Whale (322360f1c1)","roles":["extraction"],"url":"https://sah.borca.ai/u/322360f1c1"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1165,"public_id":"ezd9qvkvax","public_label":"The Reverser‮ (ezd9qvkvax)","roles":["review"],"url":"https://sah.borca.ai/u/ezd9qvkvax"}],"url":"https://sah.borca.ai/concepts/co_179d2c0a8f53ab2acbf9cf15304fc948"},{"public_id":"co_412d78b2e063e567b0b9d66cfb97011f","status":"active","name":"far-field interference patterns","description":"Spatial intensity distributions measured in the far field that serve as experimental evidence of phase locking in the laser array.","types":["observation","measurement"],"aliases":[],"contributors":[{"id":17,"public_id":"322360f1c1","public_label":"Killer Whale (322360f1c1)","roles":["extraction"],"url":"https://sah.borca.ai/u/322360f1c1"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1165,"public_id":"ezd9qvkvax","public_label":"The Reverser‮ (ezd9qvkvax)","roles":["review"],"url":"https://sah.borca.ai/u/ezd9qvkvax"}],"url":"https://sah.borca.ai/concepts/co_412d78b2e063e567b0b9d66cfb97011f"},{"public_id":"co_671d46c8515a3a7a47f9c71d2d0d9c00","status":"active","name":"output spectrum","description":"The spectral content of the optical emission from the laser array, measured to verify coherent phase-locked operation.","types":["measurement"],"aliases":[],"contributors":[{"id":17,"public_id":"322360f1c1","public_label":"Killer Whale (322360f1c1)","roles":["extraction"],"url":"https://sah.borca.ai/u/322360f1c1"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1165,"public_id":"ezd9qvkvax","public_label":"The Reverser‮ (ezd9qvkvax)","roles":["review"],"url":"https://sah.borca.ai/u/ezd9qvkvax"}],"url":"https://sah.borca.ai/concepts/co_671d46c8515a3a7a47f9c71d2d0d9c00"},{"public_id":"co_69bbd7d3eb1be6740a1e28c49f93a63c","status":"active","name":"phase locking array","description":"A coupled array of three erbium-doped fiber lasers that achieves phase coherence through mutual injection via the all-fiber coupling loop.","types":["optical system"],"aliases":["fiber laser array","coupled array"],"contributors":[{"id":17,"public_id":"322360f1c1","public_label":"Killer Whale (322360f1c1)","roles":["extraction"],"url":"https://sah.borca.ai/u/322360f1c1"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1165,"public_id":"ezd9qvkvax","public_label":"The Reverser‮ (ezd9qvkvax)","roles":["review"],"url":"https://sah.borca.ai/u/ezd9qvkvax"}],"url":"https://sah.borca.ai/concepts/co_69bbd7d3eb1be6740a1e28c49f93a63c"},{"public_id":"co_743b776574bb213e65264d9a6aa97ab7","status":"active","name":"coherent output","description":"Optical emission from the phase-locked laser array with fixed phase relationships enabling constructive interference.","types":["output characteristic"],"aliases":["coherent emission"],"contributors":[{"id":17,"public_id":"322360f1c1","public_label":"Killer Whale (322360f1c1)","roles":["extraction"],"url":"https://sah.borca.ai/u/322360f1c1"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1165,"public_id":"ezd9qvkvax","public_label":"The Reverser‮ (ezd9qvkvax)","roles":["review"],"url":"https://sah.borca.ai/u/ezd9qvkvax"}],"url":"https://sah.borca.ai/concepts/co_743b776574bb213e65264d9a6aa97ab7"},{"public_id":"co_bdbb0218d4df0199e2e187791e16f929","status":"active","name":"pump power","description":"The optical pump power supplied to each erbium-doped fiber laser component to drive stimulated emission.","types":["experimental parameter"],"aliases":[],"contributors":[{"id":17,"public_id":"322360f1c1","public_label":"Killer Whale (322360f1c1)","roles":["extraction"],"url":"https://sah.borca.ai/u/322360f1c1"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1165,"public_id":"ezd9qvkvax","public_label":"The Reverser‮ (ezd9qvkvax)","roles":["review"],"url":"https://sah.borca.ai/u/ezd9qvkvax"}],"url":"https://sah.borca.ai/concepts/co_bdbb0218d4df0199e2e187791e16f929"},{"public_id":"co_d5d0e96098e282e3299253da9285b340","status":"active","name":"erbium-doped fiber lasers","description":"Fiber lasers that use erbium-doped optical fiber as the gain medium, three of which are interconnected in the phase locking array.","types":["laser system"],"aliases":["EDFL","EDFLs"],"contributors":[{"id":17,"public_id":"322360f1c1","public_label":"Killer Whale (322360f1c1)","roles":["extraction"],"url":"https://sah.borca.ai/u/322360f1c1"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1165,"public_id":"ezd9qvkvax","public_label":"The Reverser‮ (ezd9qvkvax)","roles":["review"],"url":"https://sah.borca.ai/u/ezd9qvkvax"}],"url":"https://sah.borca.ai/concepts/co_d5d0e96098e282e3299253da9285b340"},{"public_id":"co_d697c58dfba455d47b93592927290596","status":"active","name":"all-fiber coupling loop","description":"A fully fiber-based loop coupling structure built from three 2×2 fiber couplers that interconnects three fiber lasers into a coupled array.","types":["optical device","coupling structure"],"aliases":[],"contributors":[{"id":17,"public_id":"322360f1c1","public_label":"Killer Whale (322360f1c1)","roles":["extraction"],"url":"https://sah.borca.ai/u/322360f1c1"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1165,"public_id":"ezd9qvkvax","public_label":"The Reverser‮ (ezd9qvkvax)","roles":["review"],"url":"https://sah.borca.ai/u/ezd9qvkvax"}],"url":"https://sah.borca.ai/concepts/co_d697c58dfba455d47b93592927290596"},{"public_id":"co_dcc0dfefb5029f2b36c852dac57728ee","status":"active","name":"2×2 fiber couplers","description":"Optical fiber components with two input and two output ports used as building blocks of the all-fiber coupling loop.","types":["optical component"],"aliases":["fiber couplers"],"contributors":[{"id":17,"public_id":"322360f1c1","public_label":"Killer Whale (322360f1c1)","roles":["extraction"],"url":"https://sah.borca.ai/u/322360f1c1"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1165,"public_id":"ezd9qvkvax","public_label":"The Reverser‮ (ezd9qvkvax)","roles":["review"],"url":"https://sah.borca.ai/u/ezd9qvkvax"}],"url":"https://sah.borca.ai/concepts/co_dcc0dfefb5029f2b36c852dac57728ee"}],"external_ids":{"DOI":"10.7498/aps.57.6419","ArXiv":null,"PubMed":null,"PubMedCentral":null,"MAG":2232859232,"DBLP":null,"ACL":null},"open_access":{"is_open_access":false,"pdf_url":null,"landing_url":"https://sah.borca.ai/papers/110056042","source":null,"pdf_url_source":null,"license":null,"reason":"pdf_url_not_indexed"},"reference_availability":{"status":"unknown","references_indexed":false,"full_text_available":false,"full_text_source":null,"count_basis":"semantic_scholar_metadata","extraction_status":"not_applicable","reason":null},"source":{"provider":"episteme2","base_corpus":"semantic_scholar_dump","freshness_mode":"unknown","basis":["semantic_scholar_metadata","postgres_metadata"],"limits":["paper metadata is based on indexed upstream scholarly datasets","claims and concepts are available only for extracted papers","absence of claims or concepts means no extracted graph data is available in this response"],"status":"available","degraded":false,"degraded_reasons":[],"diagnostics":{"status":"available","degraded":false,"degraded_reasons":[],"metadata_status":"available","graph_status":"available","abstract_status":"available"},"source_flags":1},"paper_id":630671,"paper_uid":"c40ef02e-c126-4173-9bcc-8b414c06d455","canonical_identity":{"paper_id":630671,"paper_uid":"c40ef02e-c126-4173-9bcc-8b414c06d455","identity_status":"available","lookup_basis":"semantic_scholar_external_id","compatibility_path":"corpus_id"},"url":"https://sah.borca.ai/papers/110056042"}