Development of a Microchip Ultrashort Light Pulse Generator

Microchip超短光脉冲发生器的研制

• 批准号: 09450032
• 负责人: MAEDA Mitsuo
• 金额: $ 6.53万
• 依托单位: KYUSHU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09450032/
• 关键词: Dye laser; Tunable laser; Ultrashort pulse; Optical integrate circuit; Saturable absorber; Distributed feedback; 分不帰還; 色素レーザ; 可変波長レーザ

We are promoting a project to develop 'Integrated Tunable Lasers' in which various functions of tunable lasers are realized on a single chip. As the first step of this project, we developed a waveguided dye laser with the distributed feedback (DFB) configuration. This laser shows the spiking oscillation with a duration of several tens ps by the pumping of a ns pulsed Nd : YAG laser, because the size is only 5 mm long.The purpose of this project is to develop a single-chip ultrashort light pulse generator using a plastic-waveguided laser. Followings are the summary of research results for these two years.1. When a DEB dye laser with a Rhodamine-6G-doped PMMA waveguide is pumped by a Q-switched Nd : YAG laser with ns pulse duration, a series of spikes with about 50 ps duration are generated.2. This pulse duration is shortened down to about 20 ps by mixing a saturable dye DODGI into the waveguide together with Rhodamine 60 dye.3. This pulse is further shortened to less than 8 ps by passing through an integrated pulse compressor in which the waveguide containing a mixture of Rhodamine 6G and DODCI has alternatively pumped and unpumped regions.4. The computer simulation shows that the pulse compression down to fs region is possible by decreasing the transmission loss in the waveguide.The next target is the DIAL measurement of OH_4 at the 2-3mum band.

我们正在推进一个开发“集成可调谐激光器”的项目，其中可调谐激光器的各种功能都在一个芯片上实现。作为本项目的第一步，我们研制了一台具有分布反馈（DFB）结构的波导染料激光器。该激光器在纳秒脉冲Nd：YAG激光器的泵浦下，由于其长度仅为5 mm，因此产生了几十ps的尖峰振荡。本课题的目的是研制一种基于塑料波导激光器的单片超短光脉冲发生器。以下是这两年的研究成果摘要。用脉宽为ns的调Q Nd：YAG激光器抽运掺若丹明6 G PMMA波导的DEB染料激光器，产生了脉宽约为50 ps的尖峰脉冲.通过将可饱和染料DODGI与罗丹明60染料一起混合到波导中，该脉冲持续时间缩短到约20 ps。该脉冲通过集成脉冲压缩器进一步缩短至小于8 ps，其中包含罗丹明6 G和DODCI的混合物的波导具有交替泵浦和未泵浦区域。计算机模拟表明，通过减小波导中的传输损耗，脉冲压缩到fs是可能的，下一步的目标是在2- 3 μ m波段对OH_4进行DIAL测量。

项目成果

M.Maeda 他2名: "Compact Ultrashort-Pulse Generator Using an Integrated Dye Laser" Review of Laser Engineering. 26・別冊. 104-107 (1998)

M.Maeda 和其他 2 人：“使用集成染料激光器的紧凑型超短脉冲发生器”激光工程评论 26/单独卷 (1998)。

M.Maeda 他1名: "Ultrashort Pulse Generation in a Single-Chip Intergated Tunable Laser" Proc.Conf.Laser-Aided Plasma Diagnostics. 329-332 (1997)

M.Maeda 等人：“单芯片集成可调谐激光器中的超短脉冲生成”Proc.Conf.Laser-Aided Plasma Diagnostics 329-332 (1997)。

M.Maeda 他2名: "Tunable Ultrashort Pulse Generation from a Wave-guided Laser with Premixde-Dye-Doped Plastic Film" Jpn.J.Appl.Phys.37・12A. 6403-6407 (1998)

M.Maeda 和另外 2 人：“使用预混合染料掺杂塑料薄膜的波导激光器产生可调谐超短脉冲”Jpn.J.Appl.Phys.37・12A 6403-6407 (1998)。

M.Maeda et al.: ""Compact Ultrashort-Pulse Generator Using an In-tegrated Dye Laser"" Review of Laser Engineering. Vol.26-No.Supl.104-107 (1998)

M.Maeda 等人：“使用集成染料激光器的紧凑型超短脉冲发生器”激光工程评论。

M.Maeda 他2名: "Ultrashort Pulse Generation by an Integrated Dye Laser with a Plastic Waveguide" Technical Digest Conf. Laser Electro-Optics(CLEO)/Pacific Rim '97. 20-21 (1997)

M.Maeda 和其他 2 人：“采用塑料波导的集成染料激光器生成超短脉冲”技术文摘激光电光 (CLEO)/环太平洋 97 (1997)。