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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.
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2004-02-10 Zarlink laser driver writes 4.7GB in <6 mins
Zarlink Semiconductor has disclosed that its ZL40510 and ZL40511 devices are the first commercially available laser diode drivers that support x16 DVD and x52 CD write/rewrite speeds.
2002-04-30 Yahequan laser diodes produce up to 300mW
Designed for use in solid-state laser pumping applications, medical instruments, and as infrared sources for night-viewing equipment, the AL980T50 and AL980T200 laser diodes from Beijing Yahequan Electronic Technology Co. Ltd produce 50mW to 300mW of power, and offer an LD reverse voltage of 2V and PD reverse voltage of 15V.
2003-06-06 Worldwide laser system revenue on the rise
The worldwide market for laser systems experienced a recouping of revenue last year despite the lackluster performance of the telecom industries.
2003-04-09 Wankeda laser pick-up unit has 0.45 NA
The SKD-B13 laser pick-up unit of Wankeda Ind. Co. Ltd operates over the 760nm to 800nm wavelength and exhibits a numerical aperture (NA) of 0.45.
2006-07-10 UV laser systems ease wafer dicing, micromachining
JPSA introduced its new IX200 series of laser systems that is available in UV diode-pumped solid-state and Excimer UV laser configurations.
2007-05-14 UV laser promises high reliability for 24/7 industrial apps
The new AVIA 266-3 from Coherent Inc. is a second-generation deep UV laser that combines high-power output with extended lifetime, output stability and industrial-grade reliability needed for 24/7 industrial applications.
2004-11-24 Using the MAX3656 laser driver to transmit serial digital video with pathological patterns
This app note describes why the SMPTE serial digital interface (SDI) form of digital video is difficult to transmit over fiber-optic links, and how the MAX3656 laser driver can be used to successfully overcome this problem.
2002-10-12 Using the isPAC30 in a DWDM Laser Power Control Loop
This application note will focus on how the ispPAC30 can be used to implement an optical power feedback control system for a DWDM laser.
2003-03-13 Uncooled DFB laser exhibits linearity up to 85C
EBookham Technology plc and Cambridge University have announced the development of a directly modulated DFB laser that exhibits wide bandwidth features.
2013-11-18 Ultra-short laser deposition tech cuts materials costs
Picodeon's ColdAb technology is geared for the application of gold and platinum thin films, enabling thinner films and reducing precious metal costs.
2007-01-31 UCSB researchers tout blue laser diode breakthrough
A team of University of California-Santa Barbara researchers have created a new type of blue-violet laser diode that they say could replace the c-plane violet laser diodes used for next-gen DVD formats.
2014-03-14 Tunable laser expands system capacity in advanced optical networks
A*STAR IME and NTU claimed the smallest wavelength-tunable laser fabricated by MEMS technology and can generate light from 1531.2-1579.5nm of the near-infrared region.
2002-12-12 TRW to develop solid-state laser for U.S. military
TRW Inc. has received a $21.3 million contract from the Air Force Research Laboratory to develop an electrically powered solid-state laser that puts out 25kW of laser beam power.
2003-07-01 Trumpf releases first 4kW disk laser offering
Trumpf Laser has released what it claims to be the world's first 4kW disk laser.
2004-01-13 Transverse laser module offers 3mW output power
The TIM311G-1 green laser module from Transverse Ind. Co. Ltd offers an output power of 3mW with a wavelength of 650nm.
2003-12-18 Transverse laser module has 680nm output wavelength
The TIM-230-6 red laser module from Transverse Ind. Co. Ltd features a copper-based laser head case. With an output wavelength of 630nm to 680nm, the product has an output power of <3mW, beam divergence of <2mard, operating current of <50mA, and operating voltage of 4.5Vdc.
2003-05-13 Toshiba develops a 36GB blue laser rewritable disk
Toshiba Corp. has developed a dual layer 36GB rewritable disk for the Advanced Optical Disk system.
2003-10-07 Toshiba blue-violet laser targets optical disc systems
Toshiba Corp. has announced development of gallium-nitride based blue-violet lasers that offer an optical output of 200mW.
2008-04-21 Teramobile laser triggers lightning strikes
Scientists have triggered lightning strikes using a Teramobile laser. The goal is to create miles-long plasma filaments that will extend from clouds to the ground, providing an economical conduit to channel surefire strikes for the purpose of studying lightning's mechanisms and its effects on infrastructure.
2003-01-23 Telecom laser market expected to grow in 2003
The telecom laser and transponder market stands to grow over 30 percent in 2003, largely due to the continued installation of line cards into existing systems, predicted market research firm Strategies Unlimited.
2003-04-22 TEC laser diode modules feature accurate temp control
Photonic Products Ltd has announced the release of its TEC blue/violet laser diode modules that incorporate microprocessor-based temperature control.
2006-09-04 TDK blue laser disc packs 200Gbytes
TDK has developed a single-sided recordable blue laser disc with a capacity of 200Gbytes, surpassing the current 25Gbyte capacity for single-layer Blu-ray discs and 50Gbytes for dual-layer discs.
2005-06-13 Taiwan unveils plug-in ready ac LED, blue laser DVD PUH
The Industrial Technology Research Institute's Optoelectronics & Systems Laboratories (OESL) in Taiwan has developed an LED that can operate under 110V AC.
2002-08-01 Tabletop system generates extreme-UV laser light
A small, inexpensive tabletop laser system that can produce coherent EUV laser light has been built by a research team at the University of Colorado.
2007-06-05 Synthetic quartz crystal resists laser light longer
Asahi Glass and Tokyo Denpa announced they have jointly developed a synthetic quartz crystal material with improved resistance to laser light, according to a JCN Network report.
2007-06-25 Surface-mountable CW laser is ultracompact
OSRAM Opto Semiconductors showcased what it claims to be the world's smallest and first SMT high-power laser for continuous wave mode.
2011-03-08 Surface-emitting laser boasts 40Gbit/s data delivery
Surface-emitting lasers have been demonstrated as a cheaper, more energy-efficient laser type for fiber optics. Sending data at 40Gbit/s, it can pave the way for speedier Internet, cellphones and computers.
2004-02-02 Summit laser diode controller suits netcomm apps
The SML2120 laser diode controller from Summit Microelectronics is designed for use in computing and netcomm systems.
2007-08-07 Study: Laser printers emit hazardous particles
A study by Queensland University of Technology found that laser printers used in home and office environments pollute the air with toner particles that are potentially hazardous to human health.
2001-09-11 Strengths and weaknesses of laser/PMT based microarray scanner systems
This application note explains the strengths and weaknesses of laser and PMT (photo-multiplier tube) based microarray scanner systems.
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