Briefs: Photonics/Optics
Optical Phase Recovery and Locking in a PPM Laser Communication Link

Free-space optical communication holds great promise for future space missions requiring high data rates. For data communication in deep space, the current architecture employs pulse position modulation (PPM). In this scheme, the light is transmitted and detected as pulses...

Briefs: Photonics/Optics

The design and initial demonstration of a laser pump module (LPM) incorporating single-mode, grating-stabilized 808- nm diode lasers and a...

Briefs: Physical Sciences
Method to Enhance the Operation of an Optical Inspection Instrument Using Spatial Light Modulators

For many aspheric and freeform optical components, existing interferometric solutions require a custom computer-generated hologram (CGH) to characterize the part. The overall objective of this research is to develop hardware and a procedure to...

Briefs: Photonics/Optics
High-Speed Edge-Detecting Line Scan Smart Camera

A high-speed edge-detecting line scan smart camera was developed. The camera is designed to operate as a component in a NASA Glenn Research Center developed inlet shock detection system. The inlet shock is detected by projecting a laser sheet through the airflow. The shock within the airflow is...

Briefs: Photonics/Optics

In a photon counting detector array, each pixel in the array produces an electrical pulse when an incident photon on that pixel is detected. Detection and demodulation of an optical...

Briefs: Photonics/Optics
Optical Communications Channel Combiner

NASA has identified deep-space optical communications links as an integral part of a unified space communication network in order to provide data rates in excess of 100 Mb/s. The distances and limited power inherent in a deep-space optical downlink necessitate the use of photon-counting detectors and a...

Briefs: Photonics/Optics
Development of Thermal Infrared Sensor To Supplement Operational Land Imager

The thermal infrared sensor (TIRS) is a quantum well infrared photodetector (QWIP)-based instrument intended to supplement the Operational Land Imager (OLI) for the Landsat Data Continuity Mission (LDCM). The TIRS instrument is a far-infrared imager operating in the...

Question of the Week
Will asteroid-mining missions pay off?

Last week, a space startup called Planetary Resources announced its plan for the future: asteroid mining. With diminishing resources on Earth, the company's founders believe that space offers the next logical frontier. They will use small satellites to scan near-Earth asteroids for rare materials, perhaps...

Products: Photonics/Optics

The CoolCard™ II from Pathfinder Research (Lafayette, CO) is a handheld infrared laser beamfinder and beam evaluation instrument. The IR beam-quality evaluation tool can be used with lasers and other IR...

Products: Photonics/Optics

PHOTONIS USA (Sturbridge, MA) has been awarded a patent for the manufacture of resistive glass tubes with non-linear gradient electrical resistance changes. The patented process creates a solid-piece reflectron...

Products: Photonics/Optics

The Mentad fiber laser from RPMC Lasers (O’Fallon, MO) is now available at the 1.0μm wavelength. The 4.25 × 2.7 × 0.8" Mentad produces pulse energies up to 50μJ, with pulse widths from 500ps to 1.25μs and rep rates from...

Products: Photonics/Optics

Opto Diode Corp. (Newbury Park, CA) has introduced three new infrared (IR) emitters. The OD-850W gallium aluminum arsenide (GaAlAs) LED features a wide-emission angle and typical optical output of 40mW. The new device has a...

Products: Photonics/Optics

Resolve Optics Ltd (Chesham, UK) supplies a lightweight version of the 80-200mm focal length UV Zoom lens, developed for use with its Digital Cerenkov Viewing Device (DCVD). The DCVD, equipped with UV Zoom lens, captures the...

Products: Photonics/Optics

ADLINK Technology (San Jose, CA) has released the EOS- 1200, an embedded vision system that implements the 2nd Generation Intel® Core™ i7 quad core processor. The product provides four independent gigabit PoE (power...

Products: Photonics/Optics

Dayoptics (Fuzhou, China) produces cylindrical lenses from a variety of materials including BK7, fused silica, sapphire, CaF2, and MgF2 as standard. Cylindrical lenses focus light in only one...

Products: Photonics/Optics

D3 Engineering (Rochester, NY), New Scale Technologies (Victor, NY), and Sunex (Carlsbad, CA) have teamed up to create a new OEM SmartCamera Developer’s Kit. The kit allows engineers to develop and integrate camera...

Products: Photonics/Optics

BitFlow (Woburn, MA) has announced the Neon- CLQ Quad, a Camera Link/PoCL frame grabber that provides interfaces for four cameras plus I/O. All four cameras can be synchronized or independently operated with different...

Products: Photonics/Optics

Ophir Photonics (North Logan, UT) offers the Quasar App, a mobile application that displays laser meter data on Android devices or tablets. The Quasar App connects to Ophir’s Quasar device via Bluetooth. Once...

Products: Photonics/Optics

The Model 248/310 grazing incidence spectrometer from McPherson (Chelmsford, MA) makes direct optical measurements from one to 300 nanometers. The device enables testing of soft x-ray (XUV) high energy light sources...

Products: Photonics/Optics

The BluLoop Light Source from Ocean Optics (Dunedin, FL) is a compact, LED-based source with balanced spectral output across the visible (400-700 nm) range. When coupled to a miniature spectrometer, optical fibers, and sampling...

News
Gas Sensor Enables Better Separation of Chemicals

A gas sensor could one day be used to detect chemical weapon vapors or indicators of disease more precisely than current models do. The device also consumes less power, which is crucial for stretching battery life in a mineshaft or an isolated clinic.

A pump and compressor collect gas from the...

News
Gold Nanoparticles Self-Assemble into Device-Ready Thin Films

Scientists with the Lawrence Berkeley National Laboratory (Berkeley Lab) and the University of California (UC) Berkeley have directed the first self-assembly of nanoparticles into device-ready materials. Through a technique based on blending nanoparticles with block co-polymer...

News: Electronics & Computers

Stanford University engineers have found a novel method for "decorating" nanowires with chains of tiny particles to increase their electrical and catalytic performance. The technique...

Who's Who: Aerospace

NASA is helping to lead an international effort to upgrade the systems that supply crucial location information and earth science measurements. Stephen...

Podcasts
Stephen Merkowitz, Project Manager, NASA Goddard Space Flight Center, Greenbelt, Maryland

Stephen Merkowitz: NASA currently offers a network of space geodetic ground stations that do Very Long Baseline Interferometry (VLBI), satellite laser ranging (SLR), and [global navigation satellite system] GNSS or GPS tracking. The new space geodesy...

Research News: Lighting

LEDs seem to reach a point where more electricity no longer imparts the same kick and productivity levels off. A team of researchers from California and Japan has devised...

Research News: Lighting

A multinational team of scientists has developed a process for creating glass-based, inorganic LEDs that produce light in the ultraviolet range. The work is a step toward biomedical...

Articles: Lighting

Though often drowned out by the excitement generated by general illumination LEDs, LED backlighting technology has evolved dramatically over the past 30 years. Continued advances in design and performance have allowed each...

Articles: Lighting

For more than half a century, the semiconductor industry has been governed by a commonly known principle described as Moore’s Law. This “law” predicts that through technological advancement a...

Videos