Technical Articles

Supplier:

Newport Corporation


Newport Corporation has published these technical articles:

(Lasers)
From this Article:
Since the discovery of supercontinuum generation (white light produced by focusing an intense laser pulse onto a nonlinear medium), significant research was devoted to investigation of this phenomenon... (View Full Article)
(Optical Components)
From this Article:
Reliable methods for determining the nonlinear optical properties of materials (i.e. nonlinear absorption and nonlinear refraction) have been developed for wide ranging applications such as optical... (View Full Article)
(Calibration and Testing Services)
From this Article:
Coherent Anti-Stokes Raman Scattering (CARS) was first reported in 1965 by Maker and Terhune1 as a method of spectroscopy for chemical analysis. The energy diagram of the process is depicted in Figure... (View Full Article)
(Lasers)
From this Article:
As a consequence of the time-bandwidth uncertainty principle, ultrashort laser pulses carry significant bandwidth. If the spectral components that fall under the bandwidth of the laser pulse are time... (View Full Article)
(Electronics and Microelectronics Manufacturing)
From this Article:
For many technologies, smaller is synonymous with better. Shrinking the size of devices brings many advantages: more components per unit area, lower power consumption, lower cost, faster response, and... (View Full Article)
(Lasers)
From this Article:
Lasers exhibit a number of features that makes them unique sources of energy for several material processing methods. For example, they are indispensable tools for drilling, welding, and cutting in... (View Full Article)
(Lasers)
From this Article:
Integrating spheres are useful for measurement of divergent light emitted from laser diodes. Typically the laser diode is positioned very close to the internal port of the sphere (Figure 1) and light... (View Full Article)
(Lasers)
From this Article:
The LQx series Fabry-Perot laser diode modules offers the most precise temperature control available from Newport Corporation. The DLx Series Distributed Feedback (DFB) Laser Source modules offer... (View Full Article)
(Lasers)
From this Article:
Fast Steering Mirrors (FSM's) are commonly used in active beam stabilization systems where the laser and application fit on a single optical table. This active beam stabilization system corrects... (View Full Article)
(Lasers)
From this Article:
Pulse shaping systems are now widely used by the ultrafast laser community for applications ranging from coherent control to multi-photon microscopy. Of particular interest is the ability to directly... (View Full Article)
(Fiber Optics)
From this Article:
Polarization in optical fiber is a much more complicated subject than the free space counterpart. Likewise, measurement and control of polarization in optical fiber requires much more complex and... (View Full Article)
(Calibration and Testing Services)
From this Article:
Researchers have historically tested for laser beam collimation by measuring the diameter of the beam immediately at the output of collimation optics and then down the optical path (typically a few... (View Full Article)
(Lasers)
From this Article:
This application note describes a closed loop computer controlled variable attenuator (figure 1) for the control of output power of a laser. It is based on the combination of a 1/2 wave-plate and... (View Full Article)
(Lasers)
From this Article:
This application note describes a closed loop, computer-controlled, variable attenuator (Figure 1) for the control of output power from a tunable laser. It is based on the combination of a 1/2... (View Full Article)
(Lasers)
From this Article:
The laser is now a firmly established tool in a wide range of applications, including semiconductor manufacturing, QA/QC, industrial marking, materials processing, biomedical systems, reprographics,... (View Full Article)
(Lasers)
From this Article:
Light incident on a diffraction grating is dispersed away from the grating surface at an angle which depends on the wavelength, so a grating can be used to select a narrow spectral band from a much... (View Full Article)
(Lasers)
From this Article:
Direct measurements of laser pulses less than 20ps using photo detectors remain a challenge. The response time of high-speed photodiodes is currently limited to around 20 picoseconds; moreover, large... (View Full Article)
(Lasers)
From this Article:
This application note describes the result of an experiment performed on near field imaging of a laser diode emission pattern at the output facet. The purpose of the experiment was to provide a... (View Full Article)
(Machine and Motion Controllers)
From this Article:
High-precision motorized positioners are used for a wide variety of applications such as fiber alignment, semiconductor wafer positioning, micro-assembly, and device testing in a number of different... (View Full Article)
(Calibration and Testing Services)
From this Article:
A beam of light can be thought of as being composed of two orthogonal electrical vector field components that may vary in amplitude and frequency. Polarized light occurs when these two components... (View Full Article)
(Lasers)
From this Article:
The description of the Gaussian pulse given by (1) is intuitive in the sense that it is fairly straightforward to conceptualize a pulse in the time domain. However, when dealing with pulses traveling... (View Full Article)
(Lasers)
From this Article:
Spectral broadening, also known as continuum generation, arising from the interaction of intense ultrashort laser pulses with nonlinear materials is a well known, highly exploited phenomenon.1 White... (View Full Article)
(Lasers)
From this Article:
It is often necessary to quantitatively assess the quality, performance, and characteristics of laser diodes. This is done through performing a series of experiments and obtaining certain significant... (View Full Article)
(Lasers)
From this Article:
Several laser-scanning microscopy techniques have been developed in the last twenty years based on non-linear optical phenomena.1 This has led to a variety of powerful imaging tools, such as... (View Full Article)
(Lasers)
From this Article:
This application note details a simple and cost effective solution for the continuous attenuation of laser output power. The attenuator kit described is based on a half waveplate and polarizer. It is... (View Full Article)
(Calibration and Testing Services)
From this Article:
This application note describes a simple Graphical User Interface (GUI) developed to allow the users to monitor thermoelectric current ITE and thermoelectric cooler (TEC1) temperature T over time t,... (View Full Article)
(Power Generation and Storage)
From this Article:
There seems to be some confusion regarding terms such as 'Resolution', 'Noise Level', 'Minimum Detectable Power' or 'Minimum Measurable Power' of the device. These terms are all used in conjunction... (View Full Article)
(Power Generation and Storage)
From this Article:
It is easy to calculate the power or energy of optical pulses if the right parameters are known. Presented here are the relationships among some basic quantities often needed when working with laser... (View Full Article)
(Power Generation and Storage)
From this Article:
It is often necessary to calculate the power density (Power/Area) of a laser beam (for example, when trying to determine whether a beam will damage an optic or detector). Usually power density is... (View Full Article)

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