Optoelectronics Information

【product information】

SOLIDWORKS big data application

EXALEAD OnePart (SOLIDWORKS EOP) is a business discovery application that accelerates the reuse of parts and utilizes past designs, specifications, standards, test results, costing and all related documents. In this way, engineers can quickly view information hidden anywhere in the organization. (Click here to view the full text)

SOLIDWORKS design simulation

SOLIDWORKS provides a more comprehensive set of simulation software package SOLIDWORKS Simulation, which is seamlessly integrated into the 3D design software SOLIDWORKS, inherits the easy-to-learn and easy-to-use characteristics of the genuine SOLDIWORKS software, and its powerful product analysis functions can be compared with most mainstream analysis software in the market. Comparable, it can help customers solve the problems of strength, deformation, life prediction, reasonable design, stability, vibration, interference and other problems encountered in the product. (Click here to view the full text)

【Industry News】

Scientists did this with wide band gap semiconductor materials

The field of ultrafast nonlinear photonics has now become the focus of many researches, because it can achieve a large number of applications in advanced on-chip spectroscopy and information processing. The latter especially requires a strong intensity-dependent optical refractive index, which can modulate optical pulses even in time scales exceeding picoseconds and sub-millimeter scales suitable for integrated photonics.

Despite the tremendous progress made in this field, there is currently no platform that provides this functionality for the ultraviolet (UV) spectral range. Now, an international team of scientists including EPFL has realized the huge nonlinearity of ultraviolet light-matter mixed state ("exciton-poleon") in a waveguide made of aluminum indium gallium nitride. The waveguide is A wide band gap semiconductor material behind solid-state lighting technologies (such as white LEDs) and blue laser diodes. (Click here to view the full text)

The promotional video of Changchun University of Science and Technology came shockingly

It’s the time of the college entrance examination for another year. This is the time to change the fate of many students. When the exam is over, they will face the choice of school. Today, I recommend a university with a prominent optics major, it is Changchun University of Science and Technology! Changchun University of Science and Technology, formerly known as Changchun Institute of Optics and Fine Mechanics, was founded by the Chinese Academy of Sciences in 1958. It is the first institution of higher learning in New China to train professionals in optics. After more than 60 years of construction and development, the school has now become a provincial key university of Jilin Province with distinctive optoelectronic characteristics and national defense characteristics. The reputation of "Cradle of Excellence". (Click here to view the full text)

We moved the European Photonic Integration Forum

CIOE will cooperate with ePIXfab (European Silicon Photonics Alliance) to bring a silicon-based photonics industry feast during the exhibition, and provide the industry with the latest silicon-based photonics manufacturing and processing cutting-edge technology sharing! (Click here to view the full text)

【Theoretical Dry Goods】

What is "spectral combining"

Spectral beam combining (also called wavelength combining or simply called wavelength combining, or incoherent beam combining) is a technology in the field of power scaling through beam combining. The purpose is to combine some high-power laser beams together to obtain a beam with very high power and try to maintain the beam quality, so the brightness is improved. Another available method is coherent beam combining.

The basic principle of spectral beam combining is to combine several beams without overlapping spectra in a polarization-sensitive beam combiner to obtain a beam. The beam combiner can be a prism, a diffraction grating, etc. Because the components of different wavelengths in the incident beam have different offsets, they finally propagate in the same direction. It is also possible to use the transmittance of each component in the spectrum as a function of wavelength, such as a dichroic mirror or a volume Bragg grating. (Click here to view the full text)

Features of excimer lasers

Excimer laser refers to the laser light produced by excited dimer. It is called an excimer because it is not a stable molecule. It is a short-lived molecule that was once formed in a series of physical and chemical reactions caused by the excitation of external energy in the laser mixed gas. Its life span is only a few. Ten nanoseconds.　

The quasi-division laser is a gas pulse laser, which produces an excimer laser with a wavelength of 193nm. It is an ultra-ultraviolet light wave. The laser absorption range of this wavelength is narrow, and the energy of the laser is almost completely absorbed by the corneal epithelial cells and stroma. , The tissue beyond this range will not absorb the laser, and each laser pulse can cut the biological tissue with a thickness of 0.2 to 0.25um, so the surrounding tissues will not be damaged. (Click here to view the full text)

Principle of optical zoom

The English name of optical zoom is Optical Zoom. Optical zoom is produced by changes in the positions of the lens, object, and focus. When the imaging surface moves in the horizontal direction, the angle of view and focal length will change, and the farther scene becomes clearer, which makes people feel like the object is progressive.

Obviously, there must be two ways to change the angle of view, one is to change the focal length of the lens. In photography terms, this is optical zoom. The focal length of the lens is changed by changing the relative position of each lens in the zoom lens. The other is digital zoom. (Click here to view the full text)

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[2021 Optical Software Recommended List]

Zemax

Zemax is a comprehensive set of optical design software. It integrates all the concept, design, optimization, analysis, tolerance analysis and document management functions of the optical system. The new version of OpticStudio provides new diffraction calculations and two new tolerance setting operands. In OpticStudio 21.1, functions related to diffractive optics, which play an important role in the augmented reality and head-up display markets, have been upgraded. This update also adds a tolerance operand to help users better adjust the design based on real tolerances.

Photon Design

PhotonDesign is an excellent series of software for photonics, optical communications, and waveguide optics, which is widely used in optical fiber communication system design and photonic device design. It has the advantages that other software cannot replace, is powerful, can fully meet your design needs, and contains multiple functional modules.

ASLD

ASLD is an efficient and easy-to-use solid-state laser cavity design and optimization simulation tool. It can range from pumping system models to resonant cavity simulations, as well as the interaction between optical, mechanical, thermal effects, and electric fields in the system.

ASLD was designed in consideration of the current output power of continuous wavelength and pulsed lasers, multi-mode analysis and beam quality analysis. The software can also accurately calculate the mechanical, optical and thermal lens effects inside the laser crystal. Furthermore, ASLD contains powerful and effective algorithms to accurately simulate and analyze the stability and output energy of the system's resonant cavity.

The graphical interface of ASLD allows users to directly insert components in the pump cavity or laser resonant cavity, and define the structure and characteristic parameters of the optical components through the corresponding windows. Moreover, the simulation data can be adjusted through the corresponding window. In this way, the operation of adjusting the component structure and parameters through the graphical interface can greatly improve the efficiency of system design.

TFCalc

TFCalc is a general tool for optical thin film design and analysis. Here is an introduction to the functions of TFC in order: absorption, effective coating, angle matching, double cone penetration, black body light source, color optimization, constraints, continuous optimization goals, Derived targets, detectors, scattering formulas, electric field strength, equal refractive index, equal stack, obtained material, global optimization, group optimization, luminous body, film sensitivity, local optimization, multiple environments, needle optimization, optical monitoring, optical density , Phase shift, psi, luminescence distribution, determination of refractive index, reflection, sensitivity analysis, stack formula, synthesis, transmittance, tunnel effect, variable material.

TFCalc software is a leader in providing innovative methods in film design software. For example, TFCalc allows the active material-the refractive index of the material to change with external influences. This function is not available in other commercial software.

TFCalc is a standard Windows and Mac program; thin film design engineers use menus, dialog boxes and windows to input and display results. Software Spectra strives to make the TFCalc software as easy to use as possible, especially for engineers who use the software only occasionally. The TFCalc software package contains a large number of design examples.

If you want to learn about these software or have purchase intentions, please call or add WeChat (number: 15172359028) for consultation, or you can scan the QR code below to fill in the requirements for inquiries.