V. Voiriot, B. Thedrez, J. Gentner, J. Rainsant, V. Colson, C. Duchemin, F. Gaborit, S. Hubert, J. Lafragette, A. Pinquier, L. Roux, B. Fernier
{"title":"1.55 /spl mu/m high efficiency tapered DFB laser using UV 250 2-in technology process","authors":"V. Voiriot, B. Thedrez, J. Gentner, J. Rainsant, V. Colson, C. Duchemin, F. Gaborit, S. Hubert, J. Lafragette, A. Pinquier, L. Roux, B. Fernier","doi":"10.1109/ICIPRM.1999.773628","DOIUrl":null,"url":null,"abstract":"We report on high external efficiency reduced far field divergence DFB laser emitting at 1.55 /spl mu/m. A high spatial resolution lithography is used to define the tapered section of the spot size converter integrated in the device. Thanks to suitable UV-250 contact lithography process, sub-micron patterns, 2-inch homogeneity, and run to run reproducibility is simultaneously achieved. 15/spl deg//spl times/15/spl deg/ front facet divergence is obtained allowing 3.6 dB coupling loss to an AR coated end-cleaved standard optical fibre. Threshold current as low as 11 mA and external efficiency up to 0.42 W/A at 25/spl deg/C have been measured on 500 /spl mu/m long lasers.","PeriodicalId":213868,"journal":{"name":"Conference Proceedings. Eleventh International Conference on Indium Phosphide and Related Materials (IPRM'99) (Cat. No.99CH36362)","volume":"126 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1999-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Conference Proceedings. Eleventh International Conference on Indium Phosphide and Related Materials (IPRM'99) (Cat. No.99CH36362)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICIPRM.1999.773628","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
We report on high external efficiency reduced far field divergence DFB laser emitting at 1.55 /spl mu/m. A high spatial resolution lithography is used to define the tapered section of the spot size converter integrated in the device. Thanks to suitable UV-250 contact lithography process, sub-micron patterns, 2-inch homogeneity, and run to run reproducibility is simultaneously achieved. 15/spl deg//spl times/15/spl deg/ front facet divergence is obtained allowing 3.6 dB coupling loss to an AR coated end-cleaved standard optical fibre. Threshold current as low as 11 mA and external efficiency up to 0.42 W/A at 25/spl deg/C have been measured on 500 /spl mu/m long lasers.
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