R. F. Neto, I. de Faria, A. Sachs, W. de Carvalho, J. R. Caumo, A.C.G. Bordeaux Rego
{"title":"DFB-DCPBH InGaAsP/InP lasers for 1550 nm optical communication systems","authors":"R. F. Neto, I. de Faria, A. Sachs, W. de Carvalho, J. R. Caumo, A.C.G. Bordeaux Rego","doi":"10.1109/ITS.1990.175645","DOIUrl":null,"url":null,"abstract":"Room-temperature CW (continuous-wave) operation of distributed feedback (DFB) double channel planar buried heterostructure (DCPBH) InGaAsP, InP lasers emitting in the 1550-nm wavelength region has been achieved. Lasing characteristics and wave propagation in a five-layer DFB waveguide were analyzed to design low threshold current and stable single longitudinal/transversal mode operation. DFB-DCPBH structures with second-order corrugation were prepared by a two-step liquid-phase epitaxial growth process. A threshold current of 50 mA at 25 degrees C and stable single longitudinal mode operation over a wide range of driving current and temperature have been obtained. Linewidth was measured both in DC conditions and in modulated conditions up to 500 MHz.<<ETX>>","PeriodicalId":405932,"journal":{"name":"SBT/IEEE International Symposium on Telecommunications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1990-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"SBT/IEEE International Symposium on Telecommunications","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ITS.1990.175645","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Room-temperature CW (continuous-wave) operation of distributed feedback (DFB) double channel planar buried heterostructure (DCPBH) InGaAsP, InP lasers emitting in the 1550-nm wavelength region has been achieved. Lasing characteristics and wave propagation in a five-layer DFB waveguide were analyzed to design low threshold current and stable single longitudinal/transversal mode operation. DFB-DCPBH structures with second-order corrugation were prepared by a two-step liquid-phase epitaxial growth process. A threshold current of 50 mA at 25 degrees C and stable single longitudinal mode operation over a wide range of driving current and temperature have been obtained. Linewidth was measured both in DC conditions and in modulated conditions up to 500 MHz.<>