TECHNOLOGY FIBRE LASERS Fibre providers Stephen Mounsey rounds up the latest in fi bre lasers
IMRA America has introduced its Femtolite FX-100i, the most compact femtosecond fi bre laser to offer more than 100mW output power at 805nm. Measuring 14 x 10 x 8cm, the FX-100i laser head has the same footprint as IMRA’s well-known Femtolite Ultra series of miniature femtosecond fi bre lasers, thereby enabling easy system integration. With sub-120fs pulses at a repetition rate of 75MHz, the new laser is an ideal replacement for existing Ti:sapphire lasers. The FX-100i is easy to operate directly from the front panel controls or remotely via an RS232 interface, and the fi bre-based design ensures
that no adjustment, alignment or optical tweaking are required. Target applications include Terahertz wave generation and detection, multiphoton fl uorescence microscopy, and second harmonic imaging. The performance and size of the FX-100i create
Fianium claims that its new SC450-8-VE is the most powerful supercontinuum laser commercially available, offering more than 8W of total optical power and a spectrum optimised to provide the maximum visible light. Emitting 1.5W in the visible wavelength range in a single-mode beam, the system sets the new standard for white light sources across a range of applications. An average visible brightness of more than 5mW/nm makes this system suitable for demanding applications requiring high-power, visible light such as fl ow cytometry, industrial inspection, fl uorescence imaging
new possibilities for the use of femtosecond lasers in industrial and scientifi c devices.
www.imra.com
JDSU’s direct-diode laser products provide up to 180W output with 400µm or 600µm fi bre delivery. The multi-mode output offers a top-hat beam profi le of excellent quality, ideal for plastics welding, selective soldering, and heat-treating applications. The company’s single- emitter L4 diode lasers are reliable and have a long lifetime. These lasers withstand the rigours of industrial-manufacturing environments, while compact form- factors, air-cooling, and standard wall-plug power facilitate integration with existing systems. Analogue and RS232 ports enable rapid, simple control and modulation without affecting product lifetime.
www.jdsu.com
JK Lasers’ (part of the GSI group) new JK500FL fi bre laser offers 500W of CW output with single-mode beam quality and the company’s
46 ELECTRO OPTICS ● MAY 2011
patented back-refl ection protection. The company states that these features will enable manufacturers to process a range of materials with high accuracy at high speeds.
The JK500FL is well suited to
metal cutting applications in which the workpiece is up to 3mm thick, where it offers high cutting speeds with a good cut quality. The company estimates that 80 per cent of cutting applications fi t into this category. Similarly to the other products in the JK FL range, the 500W fi bre laser will require minimal maintenance and will be supplied in a water- cooled, rack-mounted format, providing enhanced effi ciency in the workplace. The modular system is compatible with the standard range of JK fi bre laser tools for cutting and welding, including the popular scan head system.
www.gsiglasers.com
www.electrooptics.com
and broadband spectroscopy. The full spectrum extends from below 450nm to beyond 2,000nm, and the system is available in fi xed and variable repetition rate versions for ultimate fl exibility. With the variable repetition rate option, the source is well suited to both lifetime studies and steady state measurements.
www.fi anium.com
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