Generation of frequency-domain phase-conjugation wave in non-resonant by coherence transformation

通过相干变换产生非谐振频域相位共轭波

• 批准号: 16360029
• 负责人: NISHIOKA Hajime
• 金额: $ 9.66万
• 依托单位: The University of Electro-Communications
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16360029/
• 关键词: Lasers; phase conjugation; ultrashort pulse lasers; group-delav-dispersion; phase correction; diffractive optics; nonlinear optics; ultrashort pulse lasers; phase conjugation; nonlinear optics; group-delay-dispersion; diffractive optics; Freeq

Objective of our research is automatic compensation of GDD (group-delay-dispersion) by FDPC (frequency-domain phase-conjugation) wave in non-resonant media by coherence transformation. The FDPC wave is time reversed replica of a signal wave and regenerate initial pulse shape after passing through again the same GDD elements. We have proposed new scheme, two-photon gated pulse recording and time-reversed play back, to generate the FDPC wave. In experiments, we have demonstrated that pulse regeneration of a 10fs laser pulse with the two-photon gated diffractive optics. Part of our research is as the follows:2. A new scheme to compensate higher order group-delay-dispersion in a CPA (chirped-pulse-amplification) has been proposed.2. A new scheme to compensate higher order group-delay-dispersion in a CPA(chirped-pulse-amplification) has been proposed.3. Femtosecond pulse amplification in a photorefractive medium has been demonstrated by the two-photon gated scheme. The gain bandwidth of 32 THz has been measured.

研究的目的是利用相干变换实现非共振介质中FDPC波对群延迟色散的自动补偿。FDPC波是信号波的时间反转复制品，并在再次通过相同的GDD元素后重新生成初始脉冲形状。我们提出了双光子选通脉冲记录和时间反转回放的新方案来产生FDPC波。在实验中，我们用双光子选通衍射光学系统实现了10fs激光脉冲的脉冲再生。主要研究内容如下：2.提出了一种新的线性调频脉冲放大系统中高阶群时延色散补偿方案。提出了一种补偿啁啾脉冲放大中高阶群延迟色散的新方案。用双光子选通方案实现了飞秒脉冲在光折变介质中的放大。测量了32 THz的增益带宽。

项目成果

Femtosecond pulse recoding and regeneration by a two-photon gated periodic diffractive optics

双光子门控周期性衍射光学器件的飞秒脉冲重新编码和再生

• 发表时间: 2005
• 期刊: Springer in Chemical Physics 79
• 作者: Hajime Nishioka;Hitoshi Tomita;Ken-ichi Ueda
• 通讯作者: Ken-ichi Ueda

All-optical temporal phase correction schmeme for few-cycle optical pulses using diffractive optics

使用衍射光学的少周期光脉冲的全光时间相位校正方案

• 发表时间: 2006
• 期刊: Optics Express 14/16
• 作者: Hajime Nishioka;Hitoshi Tomita;Keisuke Hayasaka;Ken-ichi Ueda
• 通讯作者: Ken-ichi Ueda

Femtosecond pulse encoding and self phase-reconstruction by Time-Ordered Recording/Readout in a Periodic Diffractive Optics(TORPEDO)

周期衍射光学器件（鱼雷）中按时间顺序记录/读出的飞秒脉冲编码和自相位重建

• 发表时间: 2004
• 作者: Hajime Nishioka;and Ken-ichi Ueda
• 通讯作者: and Ken-ichi Ueda

Automatic Compensation of Higher Order Dispersion in Chirped Pulse Amplification System by a Nonlinear-Recorded Diffractive Obtics

非线性记录衍射光学对啁啾脉冲放大系统中高阶色散的自动补偿

• 发表时间: 2006
• 作者: Hitoshi Tomita;Keisuke Hayasaka;Hajime Nishioka;Ken-ichi Ueda
• 通讯作者: Ken-ichi Ueda

Instantaneous optical-phase-recording in a two-photon gated Bragg grating

双光子门控布拉格光栅中的瞬时光相位记录

• 发表时间: 2005
• 作者: Keisuke Hayakawa;Hajime Nishioka;Ken-ichi Ueda
• 通讯作者: Ken-ichi Ueda