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Articles: Photonics/Optics
Lasers are now used to micromachine virtually every type of material, including metals, plastics, glass, and ceramics. Micromachining is a highly diverse market that uses flash-pumped,...
Briefs: Photonics/Optics
University of Texas at Austin and Omega Optics, Austin, Texas
For decades, silicon has not been considered a favorable material for manipulating light. Electrical Engineering Professor...
Briefs: Photonics/Optics
Flomerics, Inc., Marlborough, Massachusetts
Problems emerge when electromagnetically “hot” optical transceivers are placed into systems that are bound by emissions limits. Because...
Briefs: Photonics/Optics
Quantum-Dot Laser for Wavelengths of 1.8 to 2.3 μm
The figure depicts a proposed semiconductor laser, based on In(As)Sb quantum dots on a (001) InP substrate, that would operate in the wavelength range between 1.8 and 2.3 μm. InSb and InAsSb are the smallest-bandgap conventional III-V semiconductor materials, and the present proposal is an...
Briefs: Photonics/Optics
A tunable third-order band-pass optical filter has been constructed as an assembly of three coupled, tunable, whispering-gallery-mode resonators similar to the one described in...
Briefs: Photonics/Optics
A method that would notably include dynamic pupil masking has been proposed as an enhanced version of a prior method of phasing the segments of a primary telescope mirror. The method...
Briefs: Photonics/Optics
Pattern-Recognition Algorithm for Locking Laser Frequency
A computer program serves as part of a feedback control system that locks the frequency of a laser to one of the spectral peaks of cesium atoms in an optical-absorption cell. The system analyzes a saturation absorption spectrum to find a target peak and commands a laser-frequency-control...
Products: Photonics/Optics
Designed for the study of ultrafast phenomena such as electronic deactivation, intersystem crossing, vibrational relaxation, internal conversion, and intra-molecular electron transfer,...
Products: Photonics/Optics
Aculight (Bothell, WA) built the polarized Picasso Model PF1550PM-30 fiber laser for military and commercial applications. The fiber laser produces 4- to 6-ns pulses at repetition rates from 50 kHz to 200 kHz with 1-W average output...
Products: Photonics/Optics
Hamamatsu Corp.’s (Bridgewater, NJ) C10082MD is a compact spectrometer unit that is designed for spectral evaluation of light sources, industrial color measurement, and other applications. Its CMOS linear image sensor covers...
Products: Photonics/Optics
Photon Machines (San Diego, CA) has introduced the ATLEX Series of excimer lasers, featuring a pre-ionization technique that delivers short pulse widths, high peak-power densities, and flat beams for laser...
Products: Photonics/Optics
The SIM Multi-Channel Framing Camera from Specialised Imaging Ltd. (Tring, Herts, UK) provides the choice of 4, 6, 8, or 16 separate optical channels. Effects such as parallax and shading are eliminated and the...
Products: Photonics/Optics
OSRAM Opto Semiconductors’ (San Jose, CA) Golden DRAGON LEDs offer bright daytime running light and low energy consumption. While thin-film technology ensures that almost all the light produced in the semiconductor chip is at the...
Products: Photonics/Optics
Photonic Products (Hertsfordshire, UK) offers a lead-free, blue-violet wavelength (405 nm) laser diode from Sanyo, the DL-5146-152 405 nm. The device is a 35-mW CW, (50-mW pulsed) laser diode that incorporates an internal...
Products: Photonics/Optics
The Cooke Corp.’s (Romulus, MI) pco.1200hs camera is a high-speed, 10-bit CMOS camera with integrated 1 GB, 2 GB, or 4 GB of RAM memory that enables image recording at rates up 1 GB/s. Designed for high-speed camera...
Products: Photonics/Optics
Nutfield Technology (Windham, NH) has introduced the XLR8-15 2-axis packaged scan head, the fastest 15-mm head in its class, according to the manufacturer. The scan head is designed to ease integration and manufacturing...
Products: Photonics/Optics
Designed for optics testing, dBm Optics’ (Boulder, CO) Model 4200 Tunable Laser Source offers 2,000 nm/s tuning across 150 nm. A low-noise version is available for measurements requiring high dynamic range, such as the...
Products: Photonics/Optics
Analog Modules (Longwood, FL) Model 772 pulsed laser diode driver is a highly efficient (>70 percent), compact (4.3 × 2.7 × 1.5"), lightweight (
Who's Who: Imaging
Kim Ballard, Computer Engineer, Electrical Design Branch
Engineers at Kennedy Space Center (KSC) developed the Laser Scaling and Measurement Device for Photographic Images – a camera attachment that uses laser technology – to assist scientists in determining the exact scale of any damages to the Space Shuttle's external tank when viewing...
Products: Photonics/Optics
Carl Zeiss MicroImaging (Thornwood, NY) has introduced the SteREO Discovery.V12 stereomicroscope with improved stability and image quality. The new microscope obtains more image information through an optical...
Products: Photonics/Optics
Multilayer Coating Capability
Edmund Optics (Barrington, NJ) has increased the company’s capacity to make complex coatings with more than 100 layers by adding a new 45-in. diameter Vacuum Process Technology coating chamber. The coatings can be applied to many categories of catalog parts, including polarizers, laser mirrors, short wave pass and...
Products: Photonics/Optics
e2v Technology’s (Chelmsford, England) CCD201 is a large-format 1-k × 1-k, 13-μm pixel image sensor designed for low-light, high-resolution scientific applications. The sensor claims a quantum efficiency of 95 percent with...
Products: Photonics/Optics
Designed as a yield enhancement system for electronics manufacture, YESTech (San Clemente, CA) has released the YTX-3000 HXR x-ray inspection system for extremely high-resolution applications. Featuring an open-tube...
Products: Photonics/Optics
Santec (Komaki, Japan) has released the TSL-510 tunable laser. Designed with many of the same features as the TSL-210V external cavity tunable laser, the TSL-510 offers a new front-panel interface and a number of improved...
Articles: Photonics/Optics
During the 1980s, electronics companies began a two-fold move toward outsourced manufacturing and away from a vertical manufacturing infrastructure to focus on their core...
Briefs: Photonics/Optics
Using Quasiparticle Poisoning To Detect Photons
According to a proposal, a phenomenon associated with excitation of quasi- particles in certain superconducting quantum devices would be exploited as a means of detecting photons with exquisite sensitivity. The phenomenon could also be exploited to perform medium-resolution spectroscopy. The proposal...
Briefs: Photonics/Optics
Wavelength-Agile External-Cavity Diode Laser for DWDM
A prototype external-cavity diode laser (ECDL) has been developed for communication systems utilizing dense wavelength-division multiplexing (DWDM). This ECDL is an updated version of the ECDL reported in “Wavelength-Agile External-Cavity Diode Laser” (LEW-17090), NASA Tech Briefs, Vol. 25,...
Briefs: Photonics/Optics
A proposed joint-transform optical correlator (JTOC) would be capable of operating as a real-time pattern-recognition processor. The key correlation-filter reading/writing medium of...
Briefs: Photonics/Optics
Headwall Photonics, Fitchburg, Massachusetts
Raman spectroscopy has risen to the top of a short list of technologies for identifying substances with high specificity....
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