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Title: <10 fs Infrared High Energy Fiber Laser

Abstract

The Department of Energy seeks to advance ultrafast science dealing with physical phenomena that occur in the range of one-trillionth of a second (one picosecond) to less than onequadrillionth of a second (one femtosecond). The physical phenomena motivating this subtopic include the direct observation of the formation and breaking of chemical bonds, and structural rearrangements in both isolated molecules and the condensed phase. These phenomena are typically probed using extremely short pulses of laser light. Ultrafast technology also would be applicable in other fields, including atomic and molecular physics, chemistry and chemical biology, coherent control of chemical reactions, materials sciences, magnetic and electric field phenomena, optics, and laser engineering. Based on our patented ultrafast fiber laser technology (patents 7 508 848, 7 477 664, 7 477 665, 7 590 155, 7 477 667, 7 430 224, 7 477 666, 7 593 434, 7 505 489, 7 529 278, 7 526 003, 7 430 226, 7 440 173, 7 555 022, 7 907 645), our achievement in developing the world’s first commercial 500 µJ fs fiber laser systems, and the first demonstration of 1 mJ all fiber based fs fiber laser, PolarOnyx proposes, for the first time, a high energy (targetmore » 10 mJ) ultrafast (<10 fs) fiber laser system (Sirius laser system) to meet the requirement of high energy X-ray sources. Our Sirius laser system will use spectral shaping technique (patented) to broaden the spectrum while maintaining short pulse width in energy/power scaling. In Phase II, we have achieved critical milestones and experimentally demonstrated the most critical functions of the proposed spectral broadening fiber laser: - Demonstrated the world’s broadest spectrum (>90 nm) fs seed fiber laser with the shortest pulse width (<12 fs). - Obtained over 200 uJ energy 200 fs from LMA fiber amplifier (the world’s best result) - Obtained the world’s best 2.0 mJ energy scaling through a special PCF amplifier and DSP - Demonstrated broadening and compression to 100 fs at 1.5 mJ output from a HC-PCF. - Demonstrated a working path for 10 mJ level energy scalability and pulse width shortening. The proposed Sirius laser system explores the full advantage of the specialty fibers, ultrafast fiber lasers/amplifiers, and short pulse compression technique. A compact Sirius laser system with high energy and high repetition rate will be developed in this X-ray program. Such an achievement will provide low cost and compact laser solution for HHG that is critical to the next generation X-ray. Moreover this Sirius laser system can also find broad applications in material processing, biomedical, and solar energy by engineering nano-materials such as black silicon PVs and solar cells. The latest report from Lux Research, called "Finding the Solar Market's Nadir," projects that the available capacity of solar cells and modules will measure twice the current demand and enabling the market to grow to $70 billion across 18.5 GW in next few years. The achievement in this research will have significant and wide social, scientific, and economic impacts by providing affordable low cost X-ray source, laser micromachining systems, improving solar conversion efficiency, and reducing fabrication and operational cost. Having demonstrated the proof of concept in Phase I, we will prototype and investigate the integration of the prototype with existing X-ray systems in Phase II.« less

Authors:
ORCiD logo
Publication Date:
Research Org.:
PolarOnyx, Inc.
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1432601
Report Number(s):
DE-SC0013122
DOE Contract Number:  
SC0013122
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; Femtosecond laser, high enery femtosecond fiber laser, high energy ultrafast fibe laser, high power femtosecond fiber laser

Citation Formats

Liu, Jian. <10 fs Infrared High Energy Fiber Laser. United States: N. p., 2018. Web. doi:10.2172/1432601.
Liu, Jian. <10 fs Infrared High Energy Fiber Laser. United States. doi:10.2172/1432601.
Liu, Jian. Mon . "<10 fs Infrared High Energy Fiber Laser". United States. doi:10.2172/1432601. https://www.osti.gov/servlets/purl/1432601.
@article{osti_1432601,
title = {<10 fs Infrared High Energy Fiber Laser},
author = {Liu, Jian},
abstractNote = {The Department of Energy seeks to advance ultrafast science dealing with physical phenomena that occur in the range of one-trillionth of a second (one picosecond) to less than onequadrillionth of a second (one femtosecond). The physical phenomena motivating this subtopic include the direct observation of the formation and breaking of chemical bonds, and structural rearrangements in both isolated molecules and the condensed phase. These phenomena are typically probed using extremely short pulses of laser light. Ultrafast technology also would be applicable in other fields, including atomic and molecular physics, chemistry and chemical biology, coherent control of chemical reactions, materials sciences, magnetic and electric field phenomena, optics, and laser engineering. Based on our patented ultrafast fiber laser technology (patents 7 508 848, 7 477 664, 7 477 665, 7 590 155, 7 477 667, 7 430 224, 7 477 666, 7 593 434, 7 505 489, 7 529 278, 7 526 003, 7 430 226, 7 440 173, 7 555 022, 7 907 645), our achievement in developing the world’s first commercial 500 µJ fs fiber laser systems, and the first demonstration of 1 mJ all fiber based fs fiber laser, PolarOnyx proposes, for the first time, a high energy (target 10 mJ) ultrafast (<10 fs) fiber laser system (Sirius laser system) to meet the requirement of high energy X-ray sources. Our Sirius laser system will use spectral shaping technique (patented) to broaden the spectrum while maintaining short pulse width in energy/power scaling. In Phase II, we have achieved critical milestones and experimentally demonstrated the most critical functions of the proposed spectral broadening fiber laser: - Demonstrated the world’s broadest spectrum (>90 nm) fs seed fiber laser with the shortest pulse width (<12 fs). - Obtained over 200 uJ energy 200 fs from LMA fiber amplifier (the world’s best result) - Obtained the world’s best 2.0 mJ energy scaling through a special PCF amplifier and DSP - Demonstrated broadening and compression to 100 fs at 1.5 mJ output from a HC-PCF. - Demonstrated a working path for 10 mJ level energy scalability and pulse width shortening. The proposed Sirius laser system explores the full advantage of the specialty fibers, ultrafast fiber lasers/amplifiers, and short pulse compression technique. A compact Sirius laser system with high energy and high repetition rate will be developed in this X-ray program. Such an achievement will provide low cost and compact laser solution for HHG that is critical to the next generation X-ray. Moreover this Sirius laser system can also find broad applications in material processing, biomedical, and solar energy by engineering nano-materials such as black silicon PVs and solar cells. The latest report from Lux Research, called "Finding the Solar Market's Nadir," projects that the available capacity of solar cells and modules will measure twice the current demand and enabling the market to grow to $70 billion across 18.5 GW in next few years. The achievement in this research will have significant and wide social, scientific, and economic impacts by providing affordable low cost X-ray source, laser micromachining systems, improving solar conversion efficiency, and reducing fabrication and operational cost. Having demonstrated the proof of concept in Phase I, we will prototype and investigate the integration of the prototype with existing X-ray systems in Phase II.},
doi = {10.2172/1432601},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {4}
}