High power laser systems with a controlled carrier-envelope phase and an over-one-octave infrared bandwidth
Project/Area Number |
22560037
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Applied optics/Quantum optical engineering
|
Research Institution | University of Yamanashi |
Principal Investigator |
HARIMOTO Tetsuo 山梨大学, 大学院・医学工学総合研究部, 教授 (80273035)
|
Project Period (FY) |
2010 – 2012
|
Project Status |
Completed (Fiscal Year 2012)
|
Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2010: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
|
Keywords | アト秒レーザー / 非線形光学効果 / 光パラメトリック増幅 / チャープパルス増幅 / レーザー安定性 / 超広帯域化 |
Research Abstract |
An optimum design of a tiling scheme with nonlinear optical crystals for a large scaleoptical parametric chirped pulse amplification system was achieved. In comparison withthe single-pass configuration, the enhancement factor of the second-harmonic laser at 532nm with the two-pass configuration is up to 2.5 in a type I beta-barium borate crystal. Thepeak-intensity stability of a nanosecond-order fundamental laser at 1064 nm is improvedfrom 7% to 2% with a type I non-critical phase-mismatching lithium triborate crystalheated at an environment temperature of 146oC. In addition, a simple method with theparameter S used to evaluate the thickness of the nonlinear optical crystal correspondingto the maximum second-harmonic intensity was achieved under the phase-mismatchingcondition.
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Report
(4 results)
Research Products
(14 results)