Model A - Polygon Scan Head This compact, low cost, Polygon Scan Head is…
Polygon Scanners are required to utilize Ultrafast Lasers
Life in the Ultrafast Lane with Fiber Lasers describes the progress being made by the industry to increase power levels of Ultrafast lasers using fiber technology. The article illustrates the superiority of Ultrafast /Ultra Short Pulse (USP) lasers for clean ablation and for nil Heat Affected Zone (HAZ). These are VERY IMPORTANT new capabilities for many material processing and biomedical applications.
Keep in mind that Ultrafast means the laser pulses have very short (picosecond or femtosecond) pulses. Some use the term Ultra Short Pulse (USP) laser for this technology. The consequence of this is the pulse rate is very high, even into the MHz rate. At the higher pulse rates, galvanometer (galvo) scanners are simply not fast enough. This article states that high speed polygon scanners are required to fully utilize this game changing technology. Precision Laser Scanning was founded to provide polygon scanners and related optics to meet the needs of Ultrafast /Ultra Short Pulse laser users.
At precisionlaserscanning.com you will find not only polygon scanners but many of the critical components to build a Polygon Scan Head. This includes:
Beam Expanders
Beam Shaping
F-Theta Lenses
Start Of Scan (SOS) Detection
For design tips on Polygon Scan Heads contact Precision Laser Scanning at
info@precisionlaserscanning.com
[…] The beam is then scanned using a high speed polygon scanner and focused at a flat target using an F-Theta lens. The non-reciprocating polygon scanner can achieve scan speeds greater than 10 times that of galvo scanners. This high scanning speed may be required to utilize the full potential of high power and Ultrafast / Ultra Short Pulse lasers. […]