December 2021

December 2021

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Links to Topics​​ 

Lasers

IL Photonics Club 18% Discount on Coffee

Optics

Cameras and Imaging

Light Sources

Detectors

Optomechanics

Exhibitions

Featured Company (ID Quantique)

 

Read the​​ IL Photonics blog​​ on our website for the latest news from our suppliers. We are two for two! For the second straight year, Feedspot has selected our blog as the​​ 15th best photonics blog worldwide.

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โ‚Lasers

Photo for Precision of a Snowflake

This year snowflakes come trapped in glass and are visible only with the help of polarized light. Single-pass welding of 1-mm thick, fused silica glass is enabled using the​​ BiBurst​​ function of theย CARBIDE femtosecond laser​​ fromย Light Conversion. Adhesive-free bonding is interesting for various pharmaceutical, aerospace, and green and environment-friendly applications.

LHPG is a method used in industry and material research, notably for high melting point materials, because of its flexible and cost-effective fabrication of single crystal fibers. The laser beam is guided into a closed chamber, where it hits a reflaxicon that converts the laser beam to a hollow cylinder shape. The beam is then guided to a parabolic mirror that focuses the radiation over the pedestal source.​​ 

In practice, however, small thermal fluctuations lead to a variation of the fiber diameter. This can be overcome by using a stabilized laser source, such asย Access Laserโ€™sย AL50ST, and by monitoring the melt zone.

Diagram of CO2 LHPG Technique

https://ilphotonics.com/wp-content/uploads/2021/12/CARBIDE_Image.png

CARBIDEย fromย Light Conversionย is an industrial-gradeย femtosecondย laser system offering burst-in-burst capabilities for simultaneous GHz and MHz operation. This laser can output up to 80ย W of average power, pulse energy of up to 800 ฮผJ. CARBIDE can operate at a base repetition rate of up to 2ย MHz. The laser can emit up to 10 pulses at MHz and 10 pulses at GHz burst, which is equivalent to an effective frequency of 100ย MHz.ย 

(Photo: Fachgruppe Physik und Lasertechnik, Laserinstitut Hochschule Mittweida)

A state-of-the-art laser system with two optical parametric amplifiers (OPAs), includingย Light Conversionโ€™s​​ award-winningย ORPHEUS-MIR, was installed atย Silicon Austria Labs (SAL), Austriaโ€™s top research center for electronic-based systems. This versatile combination of Light Conversionโ€™s OPAs provides broadband pulses in the UVโ€“MIR range with sub-100 fs pulse duration.

These parameters are ideal for sum-frequency spectroscopy and semiconductor characterization experiments.