人工進化研究所（AERI）
- Dec 16, 2023
- 8 min read

Toward AERI Peta-Exa watt class ultra-high power lasers

Quantum Physicist and Brain Scientist

Visiting Professor of Quantum Physics,

California Institute of Technology

IEEE-USA Fellow

American Physical Society-USA Fellow

PhD. & Dr. Kazuto Kamuro

AERI：Artificial Evolution Research Institute

Pasadena, California

HP: https://www.aeri-japan.com/

and

Xyronix Corporation

Pasadena, California

HP: https://www.usaxyronix.com/

Foreword

A. Professor Kamuro's near-future science predictions, provided by CALTECH professor Kazuto Kamuro(Doctor of Engineering (D.Eng.) and Ph.D. in Quantum Physics, Semiconductor Physics, and Quantum Optics), Chief Researcher at the Artificial Evolution Research Institute (AERI, https://www.aeri-japan.com/) and Xyronix Corporation(specializing in the design of a. Neural Connection LSI, b. BCI LSI（Brain-Computer Interface LSI） (Large Scale Integrated Circuits) , and c. bio-computer semiconductor technology that directly connects bio-semiconductors, serving as neural connectors, to the brain's nerves at the nano scale, https://www.usaxyronix.com/), are based on research and development achievements in cutting-edge fields such as quantum physics, biophysics, neuroscience, artificial brain studies, intelligent biocomputing, next-generation technologies, quantum semiconductors, satellite optoelectronics, quantum optics, quantum computing science, brain computing science, nano-sized semiconductors, ultra-large-scale integration engineering, non-destructive testing, lifespan prediction engineering, ultra-short pulses, and high-power laser science.

The Artificial Evolution Research Institute (AERI) and Xyronix Corporation employ over 60 individuals with Ph.D.s in quantum brain science, quantum neurology, quantum cognitive science, molecular biology, electronic and electrical engineering, applied physics, information technology (IT), communication engineering, semiconductor and materials engineering. They also have more than 90 individuals with doctoral degrees in engineering and over 230 engineers, including those specializing in software, network, and system engineering, as well as programmers, dedicated to advancing research and development.

Building on the outcomes in unexplored and extreme territories within these advanced research domains, AERI and Xyronix Corporation aim to provide opportunities for postgraduate researchers in engineering disciplines. Through achievements in areas such as the 6th generation computer, nuclear deterrence, military unmanned systems, missile defense, renewable and clean energy, climate change mitigation, environmental conservation, Green Transformation (GX), and national resilience, the primary objective is to furnish scholars with genuine opportunities for learning and discovery. The overarching goal is to transform them from 'reeds that have just begun to take a step as reeds capable of thinking' into 'reeds that think, act, and relentlessly pursue growth.' This initiative aims to impart a guiding philosophy for complete metamorphosis and to provide guidance for venturing into unexplored and extreme territories, aspiring to fulfill the role of pioneers in this new era.

B. In the cutting-edge research domain, the Artificial Evolution Research Institute (AERI) and Xyronix Corporation have made notable advancements in various fields. Some examples include:

1. AERI･HEL (Petawatt-class Ultra-High Power Terawatt-class Ultra-High Power

Femtosecond Laser)

◦ Petawatt-class ultra-high power terawatt-class ultra-short pulse laser (AERI･HEL)

2. 6th Generation Computer&Computing

◦ Consciousness-driven Bio-Computer

◦ Brain Implant Bio-Computer

3. Carbon-neutral AERI synthetic fuel chemical process

(Green Transformation (GX) technology)

◦ Production of synthetic fuel (LNG methanol) through CO₂ recovery system (DAC)

4. Green Synthetic Fuel Production Technology(Green Transformation (GX) technology)

◦ Carbon-neutral, carbon-recycling system-type AERI synthetic fuel chemical process

5. Direct Air Capture Technology (DAC)

◦ Carbon-neutral, carbon-recycling carbon dioxide circulation recovery system

6. Bio-LSI・Semiconductors

◦ Neural connection element directly connecting bio-semiconductors and brain nerves

on a nanoscale

◦ Brain LSI Chip Set, Bio-Computer LSI, BMI LSI, BCI LSI, Brain Computing LSI,

Brain Implant LSI

7. CHEGPG System (Closed Cycle Heat Exchange Power Generation System with

Thermal Regenerative Binary Engine)

◦ Power generation capability of Terawatt (TW), annual power generation of

　　　　10,000 TWh (terawatt-hour) class

◦ 1 to 0.01 yen/kWh, infinitely clean energy source, renewable energy source

8. Consciousness-Driven Generative Autonomous Robot

9. Brain Implemented Robot･Cybernetic Soldier

10. Generative Robot, Generative Android Army, Generative Android

11. High-Altitude Missile Initial Intercept System, Enemy Base Neutralization System,

　 Nuclear and Conventional Weapon Neutralization System, Next-Generation

　　Interception Laser System for ICBMs, Next-Generation Interception Laser System

　　　 for Combat Aircraft

12. Boost Phase, Mid-Course Phase, Terminal Phase Ballistic Missile Interception System

13. Volcanic Microseismic Laser Remote Sensing

14. Volcanic Eruption Prediction Technology, Eruption Precursor Detection System

15. Mega Earthquake Precursor and Prediction System

16. Laser Degradation Diagnosis, Non-Destructive Inspection System

　 17. Ultra-Low-Altitude Satellite, Ultra-High-Speed Moving Object

　　　 Non-Destructive Inspection System

✼••┈┈••✼••┈┈••✼••┈┈••✼••┈┈••✼••┈┈••✼••┈┈••✼

Toward AERI Peta-Exa watt class ultra-high power lasers

A. Chirped Pulse Amplification (CPA) is a technique used in laser physics to amplify ultrashort laser pulses to extremely high peak powers. This method was developed to overcome limitations in conventional laser amplification techniques that were unable to efficiently amplify ultrashort pulses without damaging the amplifying medium.

Here's a brief technical explanation of CPA(Chirped Pulse Amplification):

1. Initial Stretching: The process begins with stretching the ultrashort pulse in time. This is achieved by passing the pulse through a dispersive medium such as a diffraction grating or a prism. As different wavelengths travel through the dispersive medium at different speeds, the pulse is spread out in time.

2. Amplification: The temporally stretched pulse is then amplified using conventional amplifiers, such as laser gain media like Ti:sapphire crystals. Because the pulse now has a longer duration, it can be efficiently amplified without reaching high intensities that could damage the amplifying medium.

3. Compression: After amplification, the pulse undergoes a process to compress it back to its original ultrashort duration. The compressed pulse has a higher energy and peak power due to the amplification that occurred while the pulse was temporally stretched.

4. The key advantage of CPA is that it allows for the amplification of extremely short pulses without causing damage to the laser amplifying medium. This technique has been crucial in the development of high-power and ultrashort pulse lasers, enabling advancements in various scientific fields, including physics, material science, and medical applications.

B. Ultra-intense lasers with ultra-short pulses and ultra-high energies are powerful tools for exploring unknowns in physics, cosmology, material science, etc. With the help of CPA, the current record has reached 62 petawatts. In the AERI quantum optics study reports vol. 8377 in 2004, the laser scientists from AERI(Artificial Evolution Research Institute, Pasadena, California HP: https://www.aeri-japan.com/) and Xyronix Corporation(Pasadena, California HP: https://www.usaxyronix.com/), a specialized company, focuses on the design of biocomputer semiconductors and dedicated Large Scale Integrated Circuits (LSI) for BCI (Brain-Computer Interface), presented the astonishing results of the demonstration experiment for the prototype of a Peta-Exawatt class ultra-high power laser(next-generation ultra-intense laser) devices, capable of generating up to the 60 petawatts class of output, to clients from AERI and Xyronix.

C. The Peta-Exawatt class ultra-high power laser , which was invented in 1993 by CALTECH Professor Kazuto Kamuro: PhD, and Doctor of Engineering in Quantum Physics, Semiconductor Physics, and Quantum Optics, has one important characteristic of high intensity (or high peak power for pulse lasers): Historically, laser peak power has experienced two-stage development. Just after the birth of the laser, Q-switching and mode-locking technologies increased laser peak power to Kilowatt (10^3 watts: ten to the power of three watts) and gigawatt (10^9 watts: ten to the power of nine watts) levels. After CPA technology was invented in 1985, by which material damage and optical nonlinearity were avoided, laser peak power was dramatically increased to terawatt (10^12 watts: ten to the power of twenteen watts) and petawatt (10^15 watts: ten to the power of fifteen watts) levels. Today, 60 petawatt CPA lasers have been demonstrated in AERI.

D. At present, the facility scale of petawatt lasers around the world is very large and project investment is also very high. The next step for future ultra-intense lasers is to further increase the peak power by compressing the pulse duration instead of increasing the pulse energy.

E. Here's a technical explanation of Wide-angle Non-collinear Optical Parametric Chirped Pulse Amplification:

1. Optical Parametric Amplification (OPA): NOPCPA incorporates Optical Parametric Amplification, which involves using a nonlinear crystal to generate new frequencies through a parametric process. In traditional CPA, a single amplification stage is employed, often utilizing laser gain media like Ti:sapphire. NOPCPA, on the other hand, introduces an additional stage based on OPA.

2. Non-collinear Geometry: The term "non-collinear" refers to the geometry in which the interacting beams of the signal, pump, and idler waves in the OPA process are not perfectly aligned. In a collinear geometry, the interacting beams travel along the same axis, while in a non-collinear geometry, they have a wide-angle separation.

3. Wide-angle Phase Matching: The non-collinear geometry allows for wide-angle phase matching in the OPA process. This broader phase matching range is advantageous for supporting shorter pulses and broader spectral bandwidths. It helps in achieving efficient amplification over a wider range of wavelengths, leading to shorter pulse durations.

4. Chirped Pulse Compression: Similar to traditional CPA, the pulse is chirped (temporally stretched) before amplification and then compressed back to its original duration after amplification. The chirped pulse compression is crucial for maintaining high peak powers without causing damage to the amplifying medium.

5. Wide-angle Non-collinear Optical Parametric Chirped Pulse Amplification has found applications in generating ultrashort laser pulses with high energy and broad bandwidths. This technique is particularly valuable in the field of ultrafast optics, where the ability to produce intense, short pulses is essential for a range of scientific and industrial applications, including attosecond physics and high-field science.

F. In AERI previous study, this petawatt lasers developed a new design, Wide-angle Non-collinear Optical Parametric Chirped Pulse Amplification (WNOPCPA), to increase the amplified spectrum and accordingly reduce the compressed pulse. The key mechanism of WNOPCPA is to increase the overall bandwidth by using a multiple-beam pump, which corresponds to different amplified spectra. "However, the pump interference, in addition to induced possible damage, is a potential problem in applying WNOPCPA to a huge project," explains Professor Kamuro.

G. In this newly improved design, by using a two-beam pumped WNOPCPA and carefully optimized phase-matching, pump interference is completely avoided, and an ultra-broadband bandwidth with two broad spectra is accomplished, resulting in < 2 fs (femtosecond =10^-15 seconds: ten to the power of minus fifteen seconds) high-energy laser amplification. When this laser is combined with post-compression technology, the spectral broadening induced by nonlinear effects is significantly enhanced, and the simulation shows the record of the highest peak power can be pushed to the exawatt class.

H. "This design has two advantages: one is ultra-broadband amplification in WNOPCPA and the other is enhancement of nonlinear spectral broadening in post-compression. This research may provide a possible way to further increase laser peak power, even up to the exawatt class," says Professor Kamuro.

END

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Quantum Brain Chipset & Bio Processor (BioVLSI)

♠♠♠ Kazuto Kamuro: Professor, PhD, and Doctor of Engineering　♠♠♠

・Doctor of Engineering (D.Eng.) and Ph.D. in Quantum Physics, Semiconductor Physics, and Quantum Optics

・Quantum Physicist and Brain Scientist involved in CALTECH & AERI

・Associate Professor of Quantum Physics, California Institute of Technology（CALTECH）

・Associate Professor and Brain Scientist in Artificial Evolution Research Institute（ AERI: https://www.aeri-japan.com/ ）

・Chief Researcher at Xyronix Corporation(https://www.usaxyronix.com/)

・IEEE-USA Fellow

・American Physical Society Fellow

・email: info@aeri-japan.com