Photonics

A Hybrid Fiber/Solid-State Regenerative Amplifier with Tunable Pulse Widths for Satellite Laser Ranging

A fiber/solid-state hybrid seeded regenerative amplifier, capable of achieving high output energy with tunable pulse widths, has been developed for satellite laser ranging applications. The regenerative amplifier cavity uses a pair of Nd:YAG zigzag slabs oriented orthogonally to one another in order to make thermal lensing effects symmetrical and simplify optical correction schemes. The seed laser used is a fibercoupled 1,064-nm narrowband (

Posted in: Physical Sciences, Photonics, Briefs

Read More >>

X-Ray Diffractive Optics

X-ray optics were fabricated with the capability of imaging solar x-ray sources with better than 0.1 arcsecond angular resolution, over an order of magnitude finer than is currently possible.

Posted in: Photonics, Briefs

Read More >>

Optical Device for Converting a Laser Beam Into Two Co-aligned but Oppositely Directed Beams

Optical systems consisting of a series of optical elements require alignment from the input end to the output end. The optical elements can be mirrors, lenses, sources, detectors, or other devices. Complex optical systems are often difficult to align from end-to-end because the alignment beam must be inserted at one end in order for the beam to traverse the entire optical path to the other end. The ends of the optical train may not be easily accessible to the alignment beam.

Posted in: Physical Sciences, Photonics, Briefs

Read More >>

Using Vacuum Technology to Cool CCDs

Imagine a CCD camera operating on a long exposure and seeing only 1 electron per pixel every 16 minutes. That equates to dark current of less than 0.000001 electrons/pixel/sec. Imagine the same camera delivering less than 1.75 electrons readout noise with minimal hot spots and blemishes while delivering a peak QE of 77%. To hit these specs it would need to be cooled significantly.

Posted in: Features, Photonics, Articles

Read More >>

Using Adaptive Optics to Perform Deep-Tissue Cell Imaging

In biological imaging, the object of interest is not always in plain sight. This is especially true when performing microscopy of cells buried deep within tissues. The tissues covering the cells tend to bend and scatter the light passing through them, which prevents acquiring sharp images of the cells below. To overcome this, researchers at a leading science campus developed a novel way to use adaptive optics in microscopy.

Posted in: Applications, Photonics, Application Briefs

Read More >>

Laser Cutting System

The new CL-400 CO2 laser cutting system from Cincinnati Incorporated (Harrison, OH) uses the water-cooled, high-speed linear motor drives pioneered by Cincinnati, and the same powerful HMI touchscreen control and nesting software found on the company’s other CO2 and fiber laser cutting systems. Dual 5 × 10 ft. (1.5 × 3 m) pallets and an optional modular material handling system (MMHS) reduce beam-off time and further boost productivity. Designed for high throughput and all-around material versatility, the CL-400 delivers fast positioning speeds of 12,000 ipm and up to 1" processing range on mild steel.

Posted in: Products, Photonics

Read More >>

10 to 1000eV Spectrometer

The new McPherson (Chelmsford, MA) Model 248/310 spectrometer can easily make spectral measurements around 13 nanometers and throughout the extreme vacuum ultraviolet and soft x-ray wavelength region. It is ideal for work from 10eV to more than 1000eV. The spectrometer features one meter focal length optics built into a compact Rowland circle instrument. Grazing incidence angles used in the instrument deliver high reflective efficiency. For direct detection of extreme vacuum ultraviolet and soft x-ray wavelengths, windowless back illuminated CCD’s are used. Sensitivity of CCD’s at short wavelengths can surpass that in the visible spectral region. The CCD’s aggressive thermoelectric cooling also reduces readout noise. When gated detection is required, open microchannel plate intensifiers are available.

Posted in: Products, Photonics

Read More >>

White Papers

Troubleshooting EMI in Embedded Designs
Sponsored by Rohde and Schwarz A and D
Looking at Ceramic Carbides in a New Light
Sponsored by Goodfellow
Estimating the Effort and Cost of a DO-254 Program
Sponsored by Logic Circuit
R&S® SMB100A, NRP, FSW-K6, ZVL Radar Educational Videos
Sponsored by Rohde and Schwarz A and D
Interaction of Intermodulation Products between DUT and Spectrum Analyzer
Sponsored by Rohde and Schwarz A and D
How To Guide for the Most Common Measurements
Sponsored by National Instruments

White Papers Sponsored By: