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what is laser bias current?
A bias current is the direct and/or alternating current required to operate a bolometer at a specified resistance under specified ambient conditions.
total search1371 articles
2005-02-23 Intel claims first single-chip silicon laser based on SOI
Intel described what it claims is the world's first silicon-based continuous-wave laser on a single chipbuild around SOI and other technologies.
2002-02-19 Infinite Photonics signs $12M laser diode contract with DARPA
Infinite Photonics Inc. has entered into a $12 million contract with Defense Advanced Research Projects Agency for the R&D of proprietary IPI GCSEL diode technology.
2013-12-04 Industrial laser metal deposition to improve car die forming
Researchers rebuilt a five-axis milling machine so that it could be used to alloy forming dies automatically via laser and to increase the robustness of the stainless steel die at critical points.
2015-11-03 Imec, Ghent University reveal laser arrays on 300mm Si wafer
The breakthrough paves a path toward high-volume manufacturing of cost-effective photonic ICs with monolithically integrated laser sources to enable faster data transfer between logic and memory chips.
2010-10-20 Hynix orders ESI laser link processing system
Electro Scientific Industries reports that Hynix has placed a high volume order for its 9850TPIR+ laser link processing system to ramp its advanced DRAM and embedded memory manufacturing.
2002-09-25 Huake laser diodes draw 50mA
The C series of laser diodes from Shanxi Huake Optoelectronics Co. Ltd operates from a 3V or 5V supply and draws a maximum current of 50mA over the -100C to 400C temperature range.
2003-09-09 Huagong laser diodes operate to 1,550nm wavelength
The DLD-F3X laser diode from Huagong Tech Co. Ltd has a low threshold current and operating current.
2003-02-21 HTOE laser diode array delivers 100W output
The A098Q100W laser diode array of Hi-Tech Optoelectronics Co. Ltd operates at a wavelength between 780nm to 830nm.
2002-12-03 Hitachi ships laser diode for DVD-RAM
The HL6512MG AlGaInP red laser diode is suitable for use as a light source for large capacity rewritable optical disc memories.
2003-01-03 Hitachi red laser diodes feature circular beam
Hitachi Ltd has expanded its MARU Beam Series of red laser diodes with the addition of the world's first circular beam design offering.
2002-06-25 Hitachi laser diode targets DVD-RAM
The HL6515MG AlGaInP laser diode from Hitachi Ltd offers an output power of 60mW and a wavelength of 655nm, making the device suitable as a light source for large capacity optical disc memories.
1999-12-08 Higher outputs, easier assembly: What's new in high-power laser diodes?
This application note deals with the new designs being developed for high power application of laser diodes for the industrial and communications sector. This note, in turn, describes a laser diode in the TO-220 package.
2003-01-10 High-voltage charger drives laser caps
HiTek Power has added the CC1000 series of high-voltage capacitor chargers to its family of flash lamp drivers and dimmer units.
2010-10-08 High-powered VBG red laser line launched
PD-LD uses VBG technology to stabilize multimode 647nm red lasers
2008-01-24 High-brightness laser engine ICs are customizable
Intense has introduced the Power Core 808 family of high-brightness, single-emitter laser engine chips that are easily customized for a wide variety of optics applications.
2002-04-11 Hi-Optel MQW laser module operates up to 1,550nm
The HLD InGaAsP/InP MQW laser module from Shenzhen Hi-Optel Technology includes an FP and DFB diode that operates at 1,300nm or 1,550nm, and is suitable for use in video transmission and digital communications applications.
2009-03-24 Head-up display employs laser
Delphi Deutschland GmbH has introduced the prototype of a laser-based automotive head-up display, which displays project the data directly to the windscreen without relying on an intermediate display and thus can be implemented in a space-saving way.
2008-05-23 Harvard prof develops room-temp THz laser
A Harvard University professor has demonstrated a heterodyning method cast in nonlinear materials that mixes two easy-to-generate optical frequencies spaced apart at the desired terahertz frequency, resulting in a room-temperature terahertz laser.
2002-01-23 Guangpu laser diodes operate at 650nm wavelength
Offered in a TO hermetically sealed package, the company's laser diodes provide 5mW optical power output, with a 650nm (15nm) fundamental wavelength.
2002-04-22 GSI Lumonics ships laser trimmer for embedded passive components
GSI Lumonics Inc. has released the TrimSmart EP1000 laser trimmer for the adjustment of embedded passive components in PCBs.
2002-12-18 GSI Lumonics rolls laser systems for industrial welding apps
The company has expanded its JK series of Nd:YAG laser processing systems, which are designed for industrial precision welding apps.
2004-04-19 GSI Lumonics launches high throughput laser trim system
The TrimSmart W778 trim system from GSI Lumonics adjusts the resistive values of the latest generation of thin-film chip resistors and resistor networks.
2002-06-22 GSI Lumonics laser trimmer performs in-line device adjustment
The TrimSmart LT1100 laser trim system from GSI Lumonics Inc. provides real-time adjustment and test of resistors, capacitors, and inductors on RF modules, VCOs, and other hybrid circuits in SMEMA-compatible PCB production lines.
2003-01-29 GSI laser control software features data protection
GSI Lumonics' GUI laser control software features three levels of password protection for data and system security.
2004-01-19 Global laser markets grow 15 percent in 2003
Despite the general economic malaise of the past few years, sales of all types of lasers grew by 15 percent in 2003 over 2002 to reach $4.9B, according to the latest Laser Focus World market survey.
2010-08-23 Glass board tests laser weapon energy
Researchers have developed a system to measure a laser's power and spatial energy distribution simultaneously by directing the laser beam onto a glass target board.
2012-01-25 GaAs nanomembrane cooling by laser interaction
Researchers at the Niels Bohr Institute has cooled a semiconductor membrane from room temperature down to -269C and presents prospects for replacing expensive cryogenic cooling.
2002-03-20 Furukawa, Mitsui form laser chip joint venture
Furukawa Electric Co. Ltd has formed a joint venture with Mitsui Chemical named MC Fitel for the production of high power 9.8?m laser chips.
2003-07-15 Furukawa laser module features 4W output
Furukawa Electric has developed a semiconductor laser module that integrates a 900nm multimode laser diode in a butterfly-type package.
2002-09-09 Fujitsu, Sumitomo expand laser diode module MSA
Fujitsu Quantum Devices Ltd. and Sumitomo Electric Ind. Ltd have enhanced their previously formed MSA for a 10Gbps transmission laser diode module.
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