Challenges for new laser sources in the defence industry

The results of the work to create a complex of high-precision hardware for the unit of length reproduction and transferring carried out at “D. I. Mendeleyev Institute for Metrology (VNIIM)” are represented. This complex will serve as the basis for the further development of the reference base of the Russian Federation in the field of length measurements and will allow reproduction of the unit of length at two wavelengths of 633 nm and 532 nm, as well as measurements of the wavelength of laser sources in vacuum in the range from 500 to 1050 nm.

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Non-Plasmonic SERS with Silicon: Is It Really Safe? New Insights into Opto-Thermics of Core/Shell Microbeads

10.26434/chemrxiv.5813979.v1 ◽

2018 ◽

Author(s):

Nicolò Bontempi ◽

Irene Vassalini ◽

Stefano Danesi ◽

Matteo Ferroni ◽

Paolo Colombi ◽

...

Keyword(s):

Critical Role ◽

Raman Laser ◽

Core Shell ◽

Thermal Coupling ◽

Melting Points ◽

Experimental Proof ◽

Weakly Coupled ◽

Light Management ◽

Laser Sources ◽

First Time

<p>Here we investigate for the first time the opto-thermal behavior of SiO<sub>2</sub>/Si core/shell microbeads (Si-rex) irradiated with three common Raman laser sources (lambda=532, 633, 785 nm) under real working conditions. We obtained an experimental proof of the critical role played by bead size and aggregation in heat and light management, demonstrating that in the case of strong opto-thermal coupling the temperature can exceed that of the melting points of both core and shell components. In addition, we also show that weakly coupled beads can be utilized as stable substrates for plasmon-free SERS experiments.</p>

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WDM Laser Sources for the Defense University (Testbed) Research Internet Program (DUTRIP)

10.21236/ada377085 ◽

1999 ◽

Author(s):

Henryk Temkin

Keyword(s):

Laser Sources ◽

Internet Program

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Laser sources in medicine

Electronics and Power ◽

10.1049/ep.1967.0319 ◽

1967 ◽

Vol 13 (12) ◽

pp. 458

Author(s):

T. Powell

Keyword(s):

Laser Sources

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Superfluorescent laser sources based on single-wall carbon nanotube films (Conference Presentation)

Novel In-Plane Semiconductor Lasers XVI ◽

10.1117/12.2256912 ◽

2017 ◽

Author(s):

Zhongqu Long ◽

Yongrui Wang ◽

Kankan Cong ◽

G. Timothy Noe II ◽

Junichiro Kono ◽

...

Keyword(s):

Carbon Nanotube ◽

Single Wall Carbon Nanotube ◽

Single Wall Carbon ◽

Laser Sources ◽

Nanotube Films

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Different modulation schemes for direct and external modulators based on various laser sources

Journal of Optical Communications ◽

10.1515/joc-2020-0029 ◽

2020 ◽

Vol 0 (0) ◽

Author(s):

Hazem M. El-Hageen ◽

P.G. Kuppusamy ◽

Aadel M. Alatwi ◽

M. Sivaram ◽

Z. Ahamed Yasar ◽

...

Keyword(s):

Rate Equation ◽

Simulation Software ◽

Optical Systems ◽

Laser Source ◽

Optical Link ◽

Input And Output ◽

Modulation Techniques ◽

Different Types ◽

Laser Sources ◽

Modulation Schemes

AbstractDifferent types of laser source modulation techniques have been used in various applications depending on the objective. As optical systems extract the laws and the best solutions from experiments and simulations, the present study uses simulation software with different modulation types so the output signals can be compared. The modulators used are Mach-Zehnder, which is an external modulator, and electro-absorption modulator and laser rate equation modulator, which are direct modulators. All these types have an optical link multimode (MM) fiber with a photodiode in the receiver end that can be modeled. The input and output signals are analyzed using different types of modulations.

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