Output Characteristics1, 2

IceFyre FS UV50
Wavelength 343 ±2 nm
Power >50 W @ 1 MHz and 1.25 MHz
Maximum Pulse Energy >50 μJ @ 1 MHz
Repetition Rate Range Single shot to 3 MHz
Pulse Width, FWHM <500 fs
Pulse-to-Pulse Energy Stability <2% rms
Power Stability (after warm-up) <1% rms over 8 hours
Spatial Mode TEM00, (M2 <1.3)
Polarization >100:1 vertical
Beam Diameter at Exit 5.0 ±0.5 mm
Beam Divergence, full angle <0.20 mrad
Beam Pointing Stability <±25 µrad/°C
PSO Capability (Position Synchronized Output) Yes
Pulse-on-Demand Triggering (internal and external) Yes
TimeShift Programmable Burst Mode Yes

Operating Conditions3

IceFyre FS UV50
Warm-up Time, Typical <30 min from warm start mode, <60 min from cold start
Temperature Range 18-35°C
Altitude 0-2,000 m
Relative Humidity 0-90% non-condensing, dew point <19°C

Storage Conditions3

IceFyre FS UV50
Temperature Range 0-50°C
Altitude 0-2,000 m
Relative Humidity 0-90% non-condensing, dew point <22°C

Physical Characteristics4

IceFyre FS UV50
Laser Dimensions (L x W x H)5 35.67 x 17.05 x 6.89 in (906 x 433 x 175 mm)
Laser Weight 150 lbs (68 kg)
Utility Module Dimension (L x W x H) 17.99 x 18.98 x 3.96 in (457.1 x 482.1 x 100.7 mm)
Utility Module Weight 24.25 lbs (11 kg)


IceFyre FS UV50
EU RoHS 2 Compliant, China RoHS 2, CE Compliant Product compliant with restriction of hazardous substances
Internal Power Monitor Yes
Replaceable Output Window Yes, customer and field replaceable
Optional Safety Shutter Externally mounted for easy field service
Replaceable Active Laser Purge System (ALPS) Yes
Replaceable Head Desiccant Yes
Data Log Long and short term recording for diagnostics and equipment maintenance


  1. Due to our continuous product improvement program, specifications may change without notice.
  2. IceFyre FS is a Class IV - High-Power Laser, whose beam is, by definition, a safety and fire hazard. Take precautions to prevent exposure to the direct and reflected beams. Diffuse as well as specular reflections can cause severe skin or eye damage.
  3. High temperature, high humidity operation limited to dew point <19°C; high temperature, high humidity storage limited to dew point <22°C.
  4. AC to DC converter module included with standard system.
  5. Dimensions noted do not include the removable lift handles.



The IceFyre FS UV50 laser is an extraordinary leap forward in industrial femtosecond UV laser technology, delivering industry-leading performance, versatility, reliability and cost of ownership. The IceFyre FS UV50 laser is ideal for high throughput, highest quality micromachining of critical materials including polymers, metals, semiconductors, thin films and composites for demanding consumer electronics, clean energy, medical device, and industrial applications. Based on Spectra-Physics’ It’s in the Box™ design, IceFyre FS UV50 integrates laser and control electronics in a single, easy-to-install package.

Exceptional Versatility for Optimal Process Performance

IceFyre FS UV50 is the highest performing UV femtosecond laser on the market, providing >50 W of UV output power, >50 μJ pulse energy, and pulse widths of <500 fs. The laser offers exceptional versatility for optimal process performance with adjustable repetition rates from single shot to 3 MHz, pulse-on-demand (POD) and position-synchronized output (PSO) triggering, and TimeShift™ programmable pulse capability for flexible burst-mode operation.

24/7 Industrial Reliability

Building on MKS’ deep experience and technology, IceFyre FS lasers pass extensive environmental qualification testing to ensure high reliability and low cost-of-ownership. Fully automated and computer controlled, the laser exhibits exceptional stability in power, beam parameters, and beam pointing during 24/7 operation to deliver high precision and reproducibility for demanding applications.


Compatible Power Sensors

To verify and analyze the output power of your IceFyre laser, we recommend the Ophir F80(120)A-CM-17 (7Z07103) thermal power sensor and Centauri laser power meter.  Additional information on this laser measurement equipment can be found on the website.  Other Ophir sensors and meters may also be suitable for the IceFyre, depending on application. Ophir also works with laser system developers to achieve embedded beam diagnostics to monitor system performance as an OEM solution.