长春理工大学学报（自然科学版）
長春理工大學學報（自然科學版）
장춘리공대학학보（자연과학판）
JOURNAL OF CHANGCHUN UNIVERSITY OF SCIENCE AND TECHNOLOGY(NATURAL SCIENCE EDITION)
2015年
2期
9-12,17
,共5页
锥形放大器%脊形波导%隔离槽%高光束质量%高功率
錐形放大器%脊形波導%隔離槽%高光束質量%高功率
추형방대기%척형파도%격리조%고광속질량%고공솔
tapered amplifier%ridge waveguide%isolation groove%high beam quality%high power
锥形半导体激光器具有不同于普通条形半导体激光器的优异性能。采用脊形波导和锥形功率放大器，并首次采用双八字形隔离槽抑制脊形区和锥形区周围的光反馈，且优化设计了外延片波导结构，实现了激光器高亮度、高光束质量的光输出。锥形激光器在输入电流为7A时输出功率达到3.5W，光束质量M2维持在2.5左右，出射光束垂直发散角为40°，水平发散角为3.9°。基于器件发散角比较小的优点，利于在后期光纤耦合时具有比较高的耦合效率。
錐形半導體激光器具有不同于普通條形半導體激光器的優異性能。採用脊形波導和錐形功率放大器，併首次採用雙八字形隔離槽抑製脊形區和錐形區週圍的光反饋，且優化設計瞭外延片波導結構，實現瞭激光器高亮度、高光束質量的光輸齣。錐形激光器在輸入電流為7A時輸齣功率達到3.5W，光束質量M2維持在2.5左右，齣射光束垂直髮散角為40°，水平髮散角為3.9°。基于器件髮散角比較小的優點，利于在後期光纖耦閤時具有比較高的耦閤效率。
추형반도체격광기구유불동우보통조형반도체격광기적우이성능。채용척형파도화추형공솔방대기，병수차채용쌍팔자형격리조억제척형구화추형구주위적광반궤，차우화설계료외연편파도결구，실현료격광기고량도、고광속질량적광수출。추형격광기재수입전류위7A시수출공솔체도3.5W，광속질량M2유지재2.5좌우，출사광속수직발산각위40°，수평발산각위3.9°。기우기건발산각비교소적우점，리우재후기광섬우합시구유비교고적우합효솔。
Tapered semiconductor lasers have more excellent properties which are different from the common broad area semiconductor lasers. In this thesis, we introduce the ridge-waveguide structure, the tapered power amplifier, and we firstly adopt the isolation groove of the shape of the double eight to restrict the light feedback around the ridge and ta-pered section. In addition,the waveguide construction of the epitaxy is optimal designed. We realize the light output of the high-brightness and high beam quality. A output powers of 3.5W were measured at a injected current of 7A, the beam quality parameter M2 maintain 2.5 around, the vertical divergent angle is 40° , the horizontal divergent angle is 3.9°. Because of the low divergent angle,there would be higher coupling efficiency for the optical fiber coupling late.
