CCD camera; Diffraction gratings; UV photodiodes; Tunable laser, and more.
The Photometrics Quantix:57 charge-coupled-device camera combines back-illuminated technology with frame-transfer readout. Pixels are 13 x 13 µm, and frame rates from 10 to 200 frames/s are achieved with proper binning and/or subregion selection; a burst mode provides up to 20,000 frames/s. A 12-bit analog-to-digital converter can be run at 1 to 3 MHz. The camera comes in either C- or F-mount configuration and attaches to standard lenses, microscopes, and optical equipment.
Roper Scientific, Trenton, NJ
High-efficiency diffraction gratings can be fabricated for use in either reflection or transmission. A full spectrum of gratings, holographic and ruled, is available on plane and concave substrates. They can be manufactured to customer specifications, and prototype services and sample gratings are available.
Holographix, Hudson, MA
Ultraviolet photodiodes based on gallium phosphide have a better signal-to-noise ratio than silicon-based photodiodes, better temperature stability, and good rejection of visible wavelengths. They are insensitive to sunlight and can be used without special filters. Low-capacity Schottky contacts make switching times short. The devices are sensitive down to 130 nm, with effective active areas of 0.5, 1.2, 4.8, or 10.9 mm2, and are available in hermetically sealed packages in TO-46, TO-39, or SMT.
Roithner Lasertechnik, Vienna, Austria
A tunable laser based on a Bethune prism cell provides 5-10 mJ between 546 and 800 nm and up to 1-mJ ultraviolet after frequency doubling. Bandwidth of the circularly symmetric output beam is less than 0.5 cm-1. Any standard Q-switched Nd:YAG laser providing 10-35 mJ at 532 nm can be used as a pump source. The oscillator-only laser is available in computer-controlled and manually tuned versions and measures 12 x 5 x 3 in.
Dakota Technologies, Fargo, ND
CW diode-laser module
The Typhoon series of multibar modules now includes a module for CW operation. This comprises a stack of 12 diode-laser arrays with 1.5-mm bar-to-bar spacing. Water cooling enables delivery of 240 W of CW output power or 800 W of peak power in quasi-CW operation of the module.
Opto Power Corp., Tucson, AZ
The HFCT-5402D fiberoptic transceiver is for Sonet OC-48, SDH STM-16, and 2488-Mbit/s ATM applications. The 1300-nm laser-based duplex SC receptacle 2 x 9 transceiver provides integral clock and data recovery.
Hewlett Packard, Palo Alto, CA
The SU320-SMC camera is sensitive in the 900- to 1700-nm range, with peak response at 1550 nm. It contains an indium gallium arsenide 320 x 256-element focal-plane array with quantum efficiency of more than 70% over a wide band without external cooling. Integration times are selectable using an external trigger. The camera is compatible with standard analog and digital frame-grabber boards and comes with either RS170- or CCIR-compatible video output.
Sensors Unlimited, Princeton, NJ
Ultrafast CCD camera
The model 220 is capable of 100 million frames per second and has up to eight CCD channels that look through a single lens. Gain of up to 7000 is achieved with multichannel-plate intensifiers. Resolution is 782 x 582 pixels, and images are digitized at 8-bit resolution.
Cordin, Salt Lake City, UT
The M2 optional optical accessory attachment for the BeamMaster BM-7 laser-beam-profiling system allows measuring nearly collimated CW laser-beam propagation characteristics, such as the beam-propagation factor, beam-waist location, waist diameter, divergence, Rayleigh range, waist asymmetry, and astigmatism.
Coherent Auburn Group, Auburn, CA
A line of 157-nm beamsplitters for optical lithography using fluorine lasers is available in standard 30%, 50%, and 70% ±5% reflectivities, optimized for use at 45°. Substrates are excimer-grade CaF2 with coatings for front-surface operation. Optional antireflective coating for the second surface and customized polarization are available.
Acton Research Corp., Acton, MA
The HP OmniBER 719 communications performance analyzer offers multirate SONET testing to OC-48 rates. It automatically explores the payload of a SONET signal down to DS3 or DS1 levels. New mappings include E1 (2Mbit/s) mapped into DS3, DS1 floating byte sync and VT1.5 bulk-filled mappings.
Hewlett-Packard, Santa Clara, CA
Two BiCMOS high-speed integrated circuits for OC-48 fiberoptic communications systems compare in performance to more-expensive GaAs technology. The TTRN012G5 is a clock synthesizer and data multiplexer, and the TRCV012G5 is a limiting amplifier, clock recovery, and data demultiplexer. Typical jitter measurements are 0.004 unit intervals rms.
Lucent Technologies, Allentown, PA
Displays are designed for integration in either a 30- or 52-in. apparent image format. The 30-in. model offers 1.55 million pixels in SVGA resolution, while the 52-in. model provides 180,000 pixels in 800 x 225 resolution. Both come in two- and three-dimensional (stereoscopic) versions.
Sony Electronics, Park Ridge, NJ
The broadband 1550-nm single-mode depolarizer is fully passive yet can reduce the polarization of even narrowband light sources to less than 5% DOP. Linewidth sources less than 0.1 nm can be fully depolarized. A 980-nm version is available for EDFA applications.
Alliance Fiber Optic Products, Sunnyvale, CA
A series of low-level current amplifiers can be used with PMTs or photocells. The PMT-4 current-to-voltage converter covers a range of 10-7-10-5 A/V. The PMT-5 covers 10-11-10-6 A/V. For computer applications, the PMT-5R covers 10-12-10-6 A/V and has remote-controlled gain with selection by 3 TTL logic lines.
Advanced Research Instruments, Boulder, CO
Customized pinholes, apertures, and collimators are made from thin-foil tantalum or molybdenum and can be from 25 to 200 µm thick, with feature sizes as small as 5 µm. Pinhole arrays consist of multiple holes or slits. Collimators have a countersink feature for a large-diameter hole that minimizes stray light or backscatter.
Resonetics, Nashua, NH
The model 880D laser-diode driver provides CW or quasi-CW output currents to drive laser diodes for pumping solid-state lasers. In the quasi-CW mode, the system allows pulses as short as 200 µs with risetimes of less than 50 µs. Features include an active power factor corrected front end and either local, front-panel, or remote (RS-232) control.
Analog Modules, Longwood, FL
The P22-C1 and P12-C1 convergent-beam fibers consist of bifurcated plastic fibers that pipe light to the sensing target and a compact convergent sensing head assembly that positions the fibers to mechanically converge the emitted light 3 mm in front of the assembly. The fibers will detect objects as small as 0.2 mm and are unaffected by varying target color or reflectivity.
Banner Engineering Corp., Minneapolis, MN
The JEP 5-400 GaP photodiode has an active area of 4.8 mm2 and a spectral sensitivity that is flat between 250 and 400 nm, with an absolute spectral responsivity of 75 mA/W. The detector's sensitivity is a factor of 104 lower for wavelengths above 400 nm, useful for flame detection and UVC measurements.
Laser Components, Santa Rosa, CA
The HPC 5.5 and HPC 11 chillers for lasers and other industrial applications feature a temperature range of 4°C to 30°C, temperature stability of ±0.5°C or better, and air-cooled compressors. They require 230 V, 60 Hz, and 18 or 28 A, respectively. Custom-designed models are also available.
Caron, Marietta, OH
Laser windows for middle and high powers use a variety of materials as substrates, depending on output power and wavelength range of the laser with which they are to be used. Windows have a dielectric antireflective coating, optimized for power and wavelength.
Plan Optik GmbH, Elsoff, Germany
The water-cooled Monsoon series diode-laser technology is now available for use with a single array (bar). On Monsoon heat sinks, diode-laser bars produce 50 W of CW power, with a choice of output wavelengths that spans 790 to 980 nm.
Opto Power Corp., Tucson, AZ
The Flash150 ADX Synchronous Optical Network add/drop multiplexer combines traditional OC-3 (150 Mbit/s) and OC-12 (622 Mbit/s) operation with advanced bandwidth grooming and data-transport capabilities. Any-port-to-any-port connectivity allows more efficient use of the fiber and reduces the number of network elements required in many applications.
Fujitsu Network Communications, Richardson, TX
The R7110U-40 compact hybrid photodetector has low excess noise and low hysteresis from 350 to 720 nm. Its GaAsP(Cs) photocathode has a quantum efficiency of 40% at 550 nm. Typical cathode sensitivity is 177 mA/W at 550 nm, active area is 5 mm in diameter, and risetime is 1.3 ns. Gain is 4 x 104.
Hamamatsu Corp., Bridgewater, NJ
The Discovery laser-diode machine is a fully configured InGaAsP, InGaAlP, and AlGaAs laser-diode production tool. Features include the RealTemp emissivity compensated pyrometry system for measuring and controlling wafer temperature, as well as EpiVIEW process control and monitoring software.
EMCORE Corp., Somerset, NJ
Contact image sensor
The PI310MC-DR binary-output contact image sensor has 11.8-dot/mm resolution and a single binary line digital output. A signal-tracking threshold compensates for variations in document patterns and color. With 1056 pixels and an integrated yellow/green light bar, the device scans A6-size (89-mm) documents. Scanning rates of 528 µs/line are achieved with a 2-MHz pixel clock.
Peripheral Imaging Corp., San Jose, CA
Diode-laser stacked arrays
The QCW line of conduction-cooled high-packing-density quasi-CW stacked arrays feature wavelength ranges of 780-840 and 880-992 nm. They come in one, two, five, or seven-bar stacked arrays. Peak power per 1-cm-long bar is 100 W at an operating current of less than 115 A.
Coherent Semiconductor Group, Santa Clara, CA
With increased amplification, the ac-coupled Series 99 low-light photodetector modules capture fast transient light signals and are powered by battery or rechargeable gel cells. Gain reaches 15,000 V/W, and bandwidth ranges from 2.8 to 10 GHz. Si, GaAs, and InGaAs photodiodes cover UV, visible, IR, and far-IR spectral ranges.
Martin, Froeschner & Associates, Livermore, CA
The RTI 4100 laser interferometer has an absolute accuracy of better than l/200 P-V and rms repeatability of better than l/10,000. Surfaces as steep as 7 waves/mm can be measured at high magnification. The instrument has a 7X continuous zoom, a choice of lasers and apertures, and Vision32 data-analysis software. Code V and Zemax data can be imported.
Veeco Process Metrology, Tucson, AZ
Code V Version 8.40 laser-beam-analysis software can directly analyze and optimize afocal systems without requiring the insertion of a perfect focusing lens in the system. The afocal mode automatically changes much of the program's output from spatial to angular units, facilitating the design of optical systems, such as telescopes, microscopes, binoculars, and head-up displays.
Optical Research Associates, Pasadena, CA
Output energy for the EX50 kilohertz excimer laser varies from 15 to 50 mJ, depending on the excimer wavelength. The laser also operates at 157 nm. Models with repetition rates of 250, 500, 750, and 1000 Hz are available. Average powers are 36 W at 248 nm and 18 W at 193 nm.
GAM Laser, Orlando, FL
The IF-D96 5-MHz photologic fiberoptic detector mates with 1000-µm-core fiber and has an internal microlens as well as an inexpensive plastic connector housing. Spectral sensitivity is 400-1100 nm, peaking at 850 nm. It allows connectorless fiber termination and connection.
Industrial Fiber Optics, Tempe, AZ
Made for 3- to 16-in. continuous lightlines, linear polarizers enhance contrast on highly reflective surfaces and mount onto Fostec lightlines with or without cylindrical lenses. Each kit contains a horizontal and vertical polarizer and is used with a customer-supplied analyzer attached to a camera objective.
Schott-Fostec LLC, Auburn, NY
The high-power Nd:YAG laser provides up to 60-W CW power and 50-W Q-switched average power (20-80 kHz) in the fundamental transverse mode (TEM00, M2 <1.3) with a beam roundness greater than 95%. The laser is pumped by fiber-coupled diodes. Pulse-to-pulse stability is better than 5%, and pulses are typically 500 ns long at 50 kHz.
Q-Lase, Gingins, Switzerland
Basic OMNIC software provides all necessary tools for Fourier-transform-infrared and FT-Raman analysis. It is designed for use with the company's spectrometers and includes on-line manuals, simplified operation of common tasks, and an introductory spectral library to help identify samples.
Nicolet Instrument Corp., Madison, WI
C-mount CCD lenses
A series of C-mount lenses are designed for charge-coupled-device area and line cameras in all formats up to 1 in. They feature optimal field correction for all applications and color correction for visual and near-infrared range and have a manual lockable focus and iris mechanism.
Rodenstock Precision Optics, Rockford, IL
Excimer exposure analyzer
The model 375 248-nm excimer-laser exposure analyzer has a special probe for ASML laser steppers and is traceable to NIST standards. The system combines irradiance-calibrating technology with a temperature-compensating Smart Probe to give better than ±1% probe-to-probe matching. It handles multiple probes for production requirements.
OAI, Milpitas, CA