Del Mar Ventures
4119 Twilight Ridge
San Diego, CA 92130
tel (858) 755-6727
fax (858) 755-6771
v/efax (858) 630-237
v/efax: (509) 752-0123
delmar@sciner.com
http://www.sciner.com/
http://www.femtosecondsystems.com/
Del Mar Ventures > Products > Femtosecond Products>
Femtosecond Literature>
Femtosecond Phenomena and Techniques>
Ultrashort pulses make 3D devices
The laser-assisted micromachining of optical materials consists in focusing a femtosecond laser beam to dimensions of a few microns inside or on the surface of the substrate. Multiphoton absorption and avalanche ionization can cause a material modification in a very small volume and this “hot spot” can be moved to create different patterns of modified refractive index. The absence of any photolithographic process and the high processing speed make this fabrication technique very interesting in view of industrial applications such as optical waveguide writing. Through the number of non-linear processes the near infrared light pulses from a Cr:Forsterite laser (~1250nm) or Ti:sapphire laser (~800 nm) can provide refractive index modifications in optical materials without optical damage.
Femtosecond Micromachining Workstation
Amplified femtosecond Cr:Forsterite Laser System
CrF-65P
Femtosecond Cr:Forsterite laser with electronic starter and fiber laser pump
1250nm, 40-80fs, 100MHz, 2nJ
Femtosecond Cr:Forsterite regenerative amplifier with Nd:YAG pump laser,
stretcher (Model ASF-40), compressor (Model ACF-40), pulse picker (Model
OG12-2/1), synchronization electronics and cover box
Pump Laser 1060nm, 30ns, 30mJ, 10Hz
1250nm, 200ps,
10Hz, 0.5mJ
Sturdy welded steel frame with roller casters/leveling feet to aid in moving the system and leveling it once in it’s final position. Welded laser/beam delivery support frame for fixed beam overhead beam positioning.
Includes beam expanding telescope, beam delivery optics, laser focusing objective in extender tube with gas assist cutting head, manual Z-axis 25mm travel for focusing the laser will be accomplished by 1” vertical fine focus range in the laser optics.
Through the lens viewing to see exactly where and what you are cutting. A CCD camera & monitor with fiber optic ring illumination provides for a high quality picture of the worksite. An electronic crosshair generator is used to mark the laser position for targeting.
12” x 12” (300 x 300mm) travel. Stage includes pre-loaded ball screw type leadscrews, end & home limit switches, linear optical encoders, motor drivers, controller, interconnect module, cables and software. This is a high quality stage and will be operated in a closed loop fashion, thus using the linear encoders for true position feedback. The software is user friendly and easy to manipulate. Software includes all the typical commands such as linear and circular interpolation, speed and acceleration control, batch file processing, absolute and relative movement and many other features.
CDRH Class I. Fully enclosed worksite. . Interlocked access doors to worksite for easy load/unload of material. Without this item the unit will operate as a class IV laser.
The system described above is one of the configuration of fsMMWS (Femtosecond Micromachining Workstation) that we offer. To receive a quote or to discuss your requirements contact us at the address below (e-mail contact is preferred).
Del Mar Ventures > Products > Femtosecond Products>
Femtosecond Literature>
Femtosecond Phenomena and Techniques>
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