Resarch on an Oscillation, Mechanism for an Extremely Short-External-Cavity Laser Diode
极短外腔激光二极管振荡机构的研究
基本信息
- 批准号:11650051
- 负责人:
- 金额:$ 1.92万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:1999
- 资助国家:日本
- 起止时间:1999 至 2001
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Tunable laser diodes using the extremely short-external-cavity configuration (ESEC LD) are desirable for optical communication, optical data storage, spectroscopy and a variety of sensing and measurement systems. Nevertheless, the wavelength variation mechanism for such ESEC LDs has not been clarified until now, because of the lack of the experimental data for various coupled conditions.We experimentally and theoretically analyzed how the parameters of the coupling system affect the ESEC LD operation. Not only the wavelength but also the side-mode suppression ratio, the spectrum line width and the mode interval are investigated, with the external-cavity length, the reflectivity of the LD facet, and the drive current as parameters.As the results, a strongly coupled (low LD facet reflectivity facing an external mirror and high mirror reflectivity) short external-cavity length is the key to achieve a wide wavelength tuning range, but multi-mode tuning occurs for an anti-reflection coated laser diode. More than 20 nm is simply demonstrated by changing the external-cavity length (varying disk rotation speed) for an InGaAsP/InP anti-reflection coated laser diode with a drive current, I/I_<th> of 1.4, where I/I_<th> is the threshold current at the external-cavity length for the maximum light-output.
使用超短外腔结构(ESEC LD)的可调谐激光二极管在光通信、光数据存储、光谱学以及各种传感和测量系统中是理想的。然而,由于缺乏各种耦合条件下的实验数据,目前这种ESEC激光器的波长变化机理还不清楚,我们从实验和理论上分析了耦合系统参数对ESEC激光器工作的影响。以外腔长度、LD端面反射率和驱动电流为参数,不仅研究了波长,而且研究了边模抑制比、谱线宽度和模式间隔,结果表明,在强耦合的情况下,可以获得高功率输出(面对外部反射镜的低LD面反射率和高反射镜反射率)短的外腔长度是实现宽波长调谐范围的关键,但是对于涂有抗反射涂层的激光二极管发生多模调谐。通过改变InGaAsP/InP抗反射涂层激光二极管的外腔长度(改变盘旋转速度)简单地证明了大于20 nm,驱动电流I/I_<th>为1.4,其中I/I_<th>为最大光输出的外腔长度处的阈值电流。
项目成果
期刊论文数量(16)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
M.Okada, B.Ghafary, H.Ukita: "Wavelength Tuning Characteristics of a Fabry-Perot Semiconductor Laser with an External Short Cavity"Optical Review. 8,6. 451-458 (2001)
M.Okada、B.Ghafary、H.Ukita:“具有外部短腔的法布里-珀罗半导体激光器的波长调谐特性”光学评论。
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- 影响因子:0
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Masakatsu Okada, Bijan Ghafary and Hiroo Ukita: "Wavelength Tuning Characteristics of a Fabry-Perot Semiconductor Laser with an External Short Cavity"OPTICAL REVIEW. 8, 6. 451-458 (2001)
Masakatsu Okada、Bijan Ghafary 和 Hiroo Ukita:“具有外部短腔的法布里-珀罗半导体激光器的波长调谐特性”光学评论。
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Bijan Ghafary,Masakatsu Okada: "Dynamics of optical Switching and Stability Analysis of Polarization-Bistable Laser Diode with Detuned External Light injection"OPTICAL REVIEW. 7,No.1. (2000)
Bijan Ghafary、Masakatsu Okada:“具有失谐外部光注入的偏振双稳态激光二极管的光学开关动力学和稳定性分析”光学评论。
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B.Ghafary, M.Okada: "Dynamics of optical Switching and Stability Analysis of Polarization-Bistable Laser Diode with Detuned External Light injection"Optical Review. 7,1. 73-82 (2000)
B.Ghafary、M.Okada:“具有失谐外部光注入的偏振双稳态激光二极管的光学开关动力学和稳定性分析”光学评论。
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Y. Karaki, S. Ihara and H. Ukita: "Wavelength and Spectrum Characteristics of an Extremely Short External Cavity Laser Diode (in Japanese)"Record of the 2001 Kansai-Section Joint Convention of Institutes of Electrical Engineering. G9-19. G254-G254 (2001)
Y. Karaki、S. Ihara 和 H. Ukita:“极短外腔激光二极管的波长和光谱特性(日语)”2001 年电气工程学会关西分会联合会议记录。
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UKITA Hiroo其他文献
UKITA Hiroo的其他文献
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{{ truncateString('UKITA Hiroo', 18)}}的其他基金
Resarch on an extremely short-external-cavity tunable laser diode
极短外腔可调谐激光二极管的研究
- 批准号:
09650056 - 财政年份:1997
- 资助金额:
$ 1.92万 - 项目类别:
Grant-in-Aid for Scientific Research (C)