Photonics West 2011
SPIE Photonics West is a leading international exhibition and conference covering photonics, laser and biomedical optics
Avantes (www.avantes.com) will be showing its new AvaSpec SensLine range of high performance, high sensitivity spectrometers. The Sensline spectrometers feature high quantum efficiency (QE) back-thinned CCD detectors along with the company's low stray light optical bench. The initial products released in this line are the AvaSpec-ULS2048x16-USB2 and AvaSpec-ULS 2048x64-USB2.
The AvaSpec-ULS2048x16-USB2 features a high-speed backthinned CCD detector with high QE for measurements in the UV to NIR range (200-1,160nm). The effective detector height with 16 pixels of 14µm is 224µm, and the pixels are vertically binned. Relative to the AvaSpec-ULS2048x14-USB2, Avantes first back-thinned CCD spectrometer, the new AvaSpec-ULS2048x16-USB2 supports much faster integration times (min 0.91ms), has improved dark noise, better etaloning, better anti-blooming and better dynamic range. The new AvaSpec-ULS2048x64-USB2 has an even higher detector height with 64 pixels of 14µm, vertically binned to an effective detector height of 900µm, resulting in four-times higher sensitivity. The AvaSpec-ULS2048x64-USB2 supports fast 1.75ms integration times and has similar dark noise, reduced etaloning, anti-blooming and dynamic range specifications as the 2048X16.
Common applications for the AvaSpec Sensline spectrometers are those requiring high sensitivity light detection such as fluorescence spectroscopy and low light-level detection applications.
Berliner Glas Group (www.berlinerglas.com) will show different high end optical solutions that make a considerable contribution to technical progress. The company's focus markets are space, metrology, laser, medical or semiconductor technologies. With a high flexibility in regards to these technologies, integration and specification changes, its solutions are always developed in close cooperation with our customers and lead to serial production using leading edge technology. On show will be different large format cylindrical lenses, objectives, space and medical components and systems, 3D camera systems or light sources.
Cal Sensors (www.calsensors.com) will introduce two new infrared detector lines at the show. The first is a new line of single element PbS (lead sulfide) detectors designed to meet the demanding requirements of high quality and reliability for high volume, cost-sensitive applications. Applications include fire safety and flame detection as well as process and quality control applications.
The second is a new line of multi-channel PbS and PbSe (lead selenide) detectors that provide market-leading sensitivity across the 1-5µm wavelength range. The detectors feature real time correction for varying operational conditions promoting greater measurement stability and accuracy. This technology is well-suited to a variety of applications including industrial and medical gas analysis, auto and aviation emissions analysis, environmental applications such as stack monitoring, greenhouse gas analysis and overseeing air quality in confined spaces including mining tunnels and underground structures.
Cobolt (www.cobolt.se) will be featuring new wavelengths on its single frequency 05-01 DPSS laser platform, which was first released in 2009. In addition to the established Zouk at 355nm, Samba at 532nm and Rumba at 1,064nm, Cobolt will introduce new wavelengths at 491nm, 561nm, and 660nm on the same platform. The company's proprietary cavity design is manufactured using HTCure technique, and delivers high power ultra-low noise performance (<0.1 per cent rms over 20Hz-20MHz and 10-40°C), a narrow spectral linewidth (<1MHz) as well as offering immunity to optical feed-back. With up to 2W CW output this new platform provides sufficient power for cutting edge applications from super resolution microscopy to flow cytometry, Raman spectroscopy, interferometry and particle analysis.
Crystran (www.crystran.co.uk) will be displaying a selection of optical components from the range that it manufactures and sells, including examples of the company's windows, lenses and prisms for use in the UV, visible and IR parts of the spectrum. Materials on display will include CaF2, MgF2, ZnSe, germanium, silicon, KRS5, and many more. There will be copies of the company's popular handbook of infrared and ultraviolet optical components. Members of the company's sales and marketing team will be on hand to discuss all technical aspects of customer requirements.
Frankfurt Laser Company (www.frlaserco.com) will be highlighting a number of products, including the HAML-E laser diode module with separate driver unit. This version HAML-E uses the same technology as the standard module, but has a separate unit for the drive electronics. The advantage of this is that it allows the optic head to be small so can be fitted where space is limited. The unit also has the advantage of being able to use interchangeable optics where necessary. The unit still retains all the features associated with the HAML, which include optional modulation for digital and analogue, interchangeable optics, and adjustable focus.
Also on show will be a new line-up of low-cost 532nm green DPSS modules. The range features modules with output from 1mW to 100mW with point, focusable point or line beam shape. For particularly demanding applications, there is a 5mW version with a wide operating temperature range from -5 to +50°C. For precision applications where a narrow bore sight is needed able, either 1 or 5mW modules with a bore sight <5mrad are available.
Hamamatsu Photonics (www.sales.hamamatsu.com) will introduce a new range of silicon detectors and image sensors that offer enhanced near-infrared sensitivity. Using unique laser processing technology, MEMS structures can be fabricated on the silicon surface, which act to reduce reflections and increase the surface area of the active element. This process drastically increases the sensitivity in wavelengths longer than 800nm.
The S11498 and S11499 series are a family of PIN photodiodes utilising this new technology, offering a high sensitivity of 0.4A/W at 850nm and 0.6A/W at 1,060nm respectively. The S11498 is twice the sensitivity and the S11499 three times the sensitivity of a typical silicon photodiode, making them ideal for a wider range of applications.
Also on show, the new S11500-1007 and S11510 series of Full Frame Transfer CCD (FFT-CCD) image sensors with ultra high sensitivity in the NIR region. By using our unique technology in laser processing, it is possible to form a MEMS structure on the rear side of the CCD, which allows the S11500-1007 and S11510 series to have a much higher sensitivity at wavelengths longer than 800nm.
Other products on display include the S11518 and S11519 silicon avalanche photodiodes (APDs), offering ultra high sensitivities at 1,000nm of between 70-75A/W at a gain of 100. Compared to conventional APDs designed for YAG laser detection, the S11518 and S11519 offer an additional 15-20A/W photo sensitivity, under the same operating conditions.
Ibsen Photonics (www.ibsen.dk) will be showcasing its new Rock series of OEM spectrometers. The three key benefits of the product are high throughput, flexibility in the choice of line scan detector/camera, and a robust athermal design. The company states that the high throughput enables customer to perform spectroscopic measurements at lower light levels or at faster line scan rates than previously possible. The OEM integration-friendly design enables customers to easily adapt the Rock spectrometer to existing mechanical chassis constraints and to re-use investments already made in software and electronics for a specific type of camera. The athermal behaviour of the Rock spectrometers means that customers avoid the use of expensive temperature control boxes.
The Lasers & Material Processing division of Jenoptik (www.jenoptik.com) will present the entire technology chain of laser sources. These OEM components and systems include customised epitaxial layer structures on wafers, high quality laser bars and single emitters, reliable diode laser packages, vertical and horizontal stacks with output powers up to the kW range, high-brightness fibre-coupled diode laser modules, fibre lasers, and diode-pumped disk lasers, all for use in various industrial, medical, scientific, defence, and entertainment applications.
As new products from the high-power diode lasers family the company will introduce a new easy to handle QCW diode laser stack modules with industrial water cooling and a highly brilliant, fibre-coupled diode laser module with 75W output power and 105μm fibre (NA 0.15) for applications such as optical pumping of fibre lasers and direct material processing.
Also on display will be the new JenLas disk IR70 infrared disk laser and the already established JenLas disk IR50. By expanding the product family to higher power, the new laser meets the requirements of photovoltaic applications such as laser-fired contacts. The laser can also be used in microprocessing applications such as cutting of stents.
J. P. Sercel Associates (JPSA) (www.jpsalaser.com) will show its IX Series of laser micromachining systems designed for use in high throughput compound semiconductor and LED device fabrication applications.
The IX-200 Series is designed for process development and production applications, where R&D flexibility enabled by user-friendly software accelerates prototyping and process development, while providing industrial-grade reliability.
The IX-6000 Series is designed for high-volume, high-speed manufacturing, and can be equipped with an integrated automation platform to provide fully-automated 24 x 7 scribing and laser lift-off (LLO) operation.
JPSA products and services include UV excimer, DPSS and ultra-fast laser micromachining systems, UV and VUV laser beam delivery systems, laser materials processing development, optical damage testing, and excimer laser refurbishment services. JPSA operates a high-performance laser job shop as well as a systems engineering and manufacturing business.
Laser Components (www.lasercomponents.com) will be showing its new Count line of photon counters. The devices offer a QE greater than 70 per cent in the red region of the spectrum, and a higher QE in the blue spectral range than other comparable devices .
The Count counters are based on a silicon Geiger-mode APD developed specifically for this series, alongside specially optimised electronics. The company states that it is one of the lowest-noise APDs on the market.
Standard modules are available with dark-counts below 10cps. These modules either come with an easy-to-use FC connection for optical fibres that have a core diameter of up to 105µm or as a free-beam module. Replacing existing photon counters with the Count module is facilitated by plug-and-play operation.
Laser Operations (www.qpclasers.com), manufacturer of the QPC Lasers product line, introduces new optimisations for its Ultra-G product series. The BrightLock Ultra-G is a breakthrough laser platform based on proprietary BrightLock semiconductor chip technology. The Ultra-G platform was released in 2009 and won the prestigious Prism Award for most innovative laser of the year. New optimisation of the product offers key advantages for both the medical markets as well as defence applications.
Laser Quantum (www.laserquantum.com) will be showcasing an exclusive launch of a new product: the Finesse 12. The Finesse is the high-power 532nm CW laser of choice, widely used for Ti:Sapphire pumping worldwide. The Finesse 12 gives 12W of true CW with noise at 0.15 per cent RMS. It has an excellent design and build quality, with its proprietary cavity design, which achieves a highly stable, ultra-quiet CW output in a diffraction-limited beam (M2 <1.1). The system is designed in a compact, robust package with integrated cooling mechanisms allowing for easy integration into OEM systems.
The Laser Zentrum Hannover (LZH) (www.lzh.de) will present laser technology suitable for use in space as well as the latest single and multi-mode fibre components.
The Laser Development Department of the LZH is presenting results of current research projects and laser development services in the German Pavilion, including laser systems being used on the Exomars-Mission.
Researchers of the Fiber Optics Group at the LZH will be presenting a wavelength division multiplexer (WDM) with a maximum optical output of up to 26W. Furthermore, developments in the field of pump light couplers for high-energy fibre lasers will be presented.
Laser-export (www.laser-export.com) will show its DTL-313, a CW green DPSS laser with output up to 1W at 527nm. The laser features excellent beam quality, low optical noise level (<1 per cent rms) and high stability of output power in a wide operating temperature range (typically <2 per cent). Versions with output power 200, 350, 500 and 1000mW are available. The laser has flexible PC control through RS-232. Fibre coupling is available upon request, and the company offers OEM and CDRH-compliant configurations.
Applications include spectroscopy, test and measurement equipment, hi-tech R&D, quality control, crystal inspection, laser light displays, alignment, partial scattering, and analysis.
NKT Photonics (www.nktphotonics.com) will launch the SuperK Extreme eco-system, which offers an increased product range spanning different spectra and power levels, together with an extensive and intelligent accessory portfolio allowing on-the-fly variation of repetition rate, flexible wavelength tuning systems and optimised spectral shaping options for applications in fluorescence microscopy, flow cytometry, FLIM, FRET, OCT, non-contact inspection and any other application, which requires light that is 'broad as a lamp and bright as a laser'.
A complete re-designed software suite, SuperKontrol, allows full PC control of the SuperK Extreme system through a straightforward graphic user interface. An additional software development kit further extends the flexibility of the SuperK Extreme system, allowing users to meet their most demanding critical timing sequences or triggering requirements.
Ocean Optics (www.oceanoptics.com), creators of the world's first miniature spectrometer, unveils the latest additions to its portfolio of miniature photonics products. Its new micro-spectrometer packs great performance into a tiny footprint – it's not much bigger than a matchbox – and is ideal for high-volume OEM applications. The company has also introduced a family of concave grating spectrometers that delivers scientific-grade stray light performance, stability and optical bench throughput. And Jaz, the spectrometer-based sensing suite, has a new communications module for use in industrial settings.
The line of benchtop optical oxygen and pH sensors has expanded to include handheld versions of each, as well as an optical temperature probe that's immune to the effects of EMI – electromagnetic interference - that typically hinders electrode sensors. Software improvements include an upgraded version of the core spectroscopy software, SpectraSuite, and a Scripting Language tool for Jaz that lets users customise spectrometer data acquisition, processing and export functions.
Pacer (www.pacer.co.uk) will be exhibiting its range of diode and DPSS lasers, laser pump chambers, laser modules for industrial, scientific and biomedical applications, laser rangefinders and laser assemblies. Pacer will also be showing low level light detectors based on APD and Channeltron technology, a new low cost visible light OEM spectrometer, high power high CRI LEDs and LED modules up to 200W, and a wide range of high brightness, sunlight readable LCD TFT and OLED displays. As well as providing standard off-the-shelf photonic components, Pacer’s internal design resources can tailor solutions to meet bespoke requirements, and custom assemblies can be manufactured by the company's global partners.
Physik Instrument (PI) (www.pi.ws) will introduce its new PIFOC series of series of fast piezo focusing devices at the Biomedical Optics branch of the show. The packages are designed to improve results in fast focusing and lens positioning as well as in deconvolution/3D imaging, while reducing costs at the same time.
The devices feature a fast digital controller with software, a choice of travel ranges (100µm, 250µm, or 400µm), sub-nm resolution suitable for autofocus applications, a choice of piezoresistive (low cost) or capacitive (precise) position feedback sensors, and improved affordability.
PicoQuant (www.picoquant.com), a specialist in the field of single photon counting applications, will introduce the new fully automated, fluorescence lifetime and steady-state spectrometer FluoTime 300. The system is based on the method of Time-Correlated Single Photon Counting (TCSPC) and allows to resolve decay times down to a few picoseconds. A unique characteristic is the very intuitive system software 'Easy Tau'. It includes special wizards that guide inexperienced users through all necessary steps for performing time-resolved as well as steady-state measurements.
A second highlight will be the new yellow picosecond pulsed laser at 596nm with variable repetition rate up to 40MHz. It delivers pulses with up to 400µW at 40MHz repetition rate. The pulse width of this new laser type can reach values below 120ps.
A third highlight will be the 't-SPAD', a new single photon counting module for timing applications with an extremely high photon detection efficiency of 75 per cent at 670nm.
Primes (www.primes.de) will be introducting the PowerMeasuringModule, which measures the optical power right in the processing zone. The industrial bus interface (e.g. ProfiNET) enables an easy integration into many industrial controller systems.The Primes PowerMeasuringModule uses the calorimetric principle. This makes the reading independent from spot size and spot position. A motorised shutter prevents the detector from contamination.
Scanlab (www.scanlab.de), manufacturer of high-performance galvanometer scanners, scan heads and scan systems for the deflection and positioning of laser beams, will present its intelliSCANde 30, a galvanometer-based scan-head to deflect and position the laser spot in 2D material processing applications. Based on a digital encoder and featuring an aperture of 30mm, the fully-digital device offers an outstanding 20-bit resolution combined with an small spot size and low drift.
For applications requiring high dynamic performance, the intelliSCANde 30 is available with light-weight beryllium mirrors or apertures of 25mm and 20mm. The intelliSCANde 30 scan heads can be ideally combined with the digital encoder based varioSCANde 40i forming a precise and fast three-axis system for processing large areas and 3D structures. IntelliSCAN 30 the well suited to demanding micromachining, semiconductor or solar applications.
Sill Optics (www.silloptics.de) will be displaying two low budget scan lenses optimised for 532nm (S4LFT0141/121) and 1,064nm (S4LFT0141/126) wavelengths. The lenses are telecentric with a maximal angle of incidence of less than 1°. The effective focal length for green wavelength applications is 171mm, while the effective focal length for the IR optimised scan lens is 183mm. The scan field for both lenses is 50mm x 50mm. The perpendicular incident angle enables a uniform round focus over the whole of the scan field.
Specialised Imaging (www.specialised-imaging.com) will be displaying its latest product innovations and applications advances in ultra high-speed imaging.
Visitors will have the opportunity to review the latest revision of the SIM ultra fast framing camera, which is now capable of capturing up to 32 images at 1 billion frames per second. In addition all SIM series are now able to undertake multi-spectral imaging experiments allowing colour images to be taken at 3ns with interframe times of 1ns.
Unlike traditional ultra fast framing cameras the optical design of SIM cameras provide the choice of up to 16 separate optical channels without comprising performance or image quality. Effects such as parallax and shading, inherent in other designs, are eliminated and the high spatial resolution (>36 lp/mm) is the same from frame to frame and in both axes.
Individual ultra-high resolution intensified CCD detectors, controlled by state-of-the-art electronics, offer excellent control over gain and exposure allowing researchers total freedom to capture images of even the most difficult transient phenomena. The ability to mount individual filters on each optical channel provides the SIM with flexible spectral selectivity. An integral TFT monitor allows users to 'see what the camera sees' in real-time, thus allowing users to optimise focus and lighting easily.
Also on display will be wide range of new application data for review and discussion in areas including ballistics, combustion research, failure dynamics, elasticity, crack propagation, hypervelocity impact studies, shock resistance, medical research, detonics, impact studies, spray/particle analysis, PIV and nanotechnology.
Toptica Photonics (www.toptica.com) will introduce a compact frequency-domain terahertz spectrometer.The system combines Toptica's new TeraBeam, a highly integrated two-colour diode laser, with newly developed InGaAs/InP emitter and detector technology (Fraunhofer Heinrich-Hertz Institute, Berlin, Germany). The new CW THz system features a fast scan option, which reduces the acquisition times in CW THz spectroscopy by more than two orders of magnitude and acquires a complete THz spectrum (e.g. 50-1200 GHz, sub-GHz resolution) in less than a minute.
Thus far, research in the field of frequency-domain (CW) terahertz has largely been carried out with GaAs photomixers, requiring laser wavelengths below 870nm. While excellent results in terms of bandwidth and signal quality have been obtained, the complexity of the optical source and a variety of non-standard optical components resulted in a price level inadequate for widespread industrial use.
Teaming up with the HHI, Toptica is now able to present an alternative solution: lasers and antenna packages for CW THz at the telecom wavelength of 1.5μm. The new TeraBeam represents a compact two-colour laser, with a footprint of only 161 x 130 x 61 mm³. Making use of highly integrated DFB laser diodes and fiber components, the laser provides 30mW per two-colour output and is thus ideally suited to the power requirements of the CW THz emitters and detectors. These modules, developed by HHI, are based on InGaAs/InP semiconductor material. The emitter utilises a high-bandwidth photodiode with an integrated waveguide structure, and provides output levels in the microwatt range. The receiver employs an InGaAs photoconductor and achieves excellent SNR values up to 80dB. The modules are fully packaged with SM/PM fibre pigtails.
Vytran (www.vytran.com) will demonstrate its precision optical fibre processing equipment at the show. Vytran's product line-up includes a fully integrated workstation and discrete process tools for optical fibre stripping, cleaning, cleaving, splicing, re-coating and testing.
Vytran's equipment is used in markets ranging from fibre laser and medical device manufacture to general R&D, sensing, aerospace and optical communications. At Photonics West the company will showcase its new LFS-4000 large-diameter fibre splicer and LDC-400 large-diameter fibre cleaver, along with its FFS-2000 splicing workstation, GPX-3400 glass processor, and various PTR-200 series re-coaters. The company's director of technology, Dr Baishi Wang, will present a course on 'Splicing of Speciality fibres and Glass Processing of Fused fibre Components' during the conference, covering the fundamental principles of speciality fibre splicing and glass fusion processing.
Z-Laser (www.z-laser.com) will present its latest developments, including a green laser diode (515nm) with a power of 40mW integrated with the company's established M18 packaging and designed for industrial applications. The company states that the use of a laser diode eliminates the power fluctuation problems which can be typical of DPSS sources. Another benefit is the possibility of simultaneous digital and analogue modulation up to the MHz range, allowing for instant control loops under real-time conditions.
Applications can be found in structured light projection, as well as in biological and medical applications such as cytometry, microscopy or fluorescent applications where many markers are sensitive to the 515nm. Fibre coupling and an industrial grade temperature stabilized module will also be available at the show.