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LASER 2009: new product focus
Products and announcements from Gooch & Housego, ES Technology, Kylia and Holo/Or.
Multimode pump combiners
Gooch & Housego, UK, will launch a range of low-port-count, multimode pump combiners with a signal feed through fibre - a format commonly referred to as a (2+1)x1. Fibre-laser systems incorporating the (2+1)x1 are becoming more common as diode pump powers increase. They are already established as the signal/pump combiner in high-power fibre amplifiers for cable TV distribution. The (2+1)x1 is available as standard at centre wavelengths of 1064 and 1550 nm, with both polarization-maintaining and singlemode feed-through fibres. Signal performance is essentially wavelength-independent over the C-band for 1550 nm devices and over a 60 nm range for the 1064 nm devices. Other options are available upon request, including combiners with large-mode-area signal fibre.
www.goochandhousego.com
Industrial fibre laser
The es CODE is a ytterbium fibre laser designed with a range of industrial applications in mind - marking, coding, thermoplastics welding, thin cutting, engraving and surface treatment. Developed by ES Technology, France, the laser comes in two versions: the es CODE 300 (30 W output power) and the es CODE 100 (10 W). According to ES, the compact scan head (215x60x75 mm) and lightweight design (800 g) make the system “a convenient tool for production-line professionals”. Specifications include a marking field of 100x100 mm (standard); marking speed of 600 characters/s (character height 1 mm); and a spot diameter of 49 or 52 microns.
www.eslaser.com
Dual-polarization optical hybrid
Kylia, France, will unveil a package dedicated to OEM deployment for its dual-polarization optical hybrid. The hybrid extracts phase and amplitude from a single-polarization signal by performing four 90° phase-stepped interferences between the signal and a local oscillator. The optical hybrid plugs into balanced photodiodes. Kylia is now working on integrating the photodiodes into a single package, with cost, fibre management and reduced footprint the main targets of the project.
www.kylia.com
High-uniformity homogenizers
Holo/Or, Israel, will feature its new series of HM5 high-uniformity homogenizers. The products, which are made from pure fused silica, are available in various diffusion angles and sizes. Popular versions include a 2x2 degrees diffusion angle for 1064 nm and a 1x1 degree diffusion angle for 532 nm. Other features include high transmission efficiency (~99%); high diffraction efficiency (~75%); high damage threshold; insensitivity to misalignment; and compatibility with single- and multimode lasers.
www.holoor.com
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