Vanguard<sup>™</sup>

Vanguard^™

QUASI-CW MODE-LOCKED UV DPSS LASERS

High power, Quasi-CW UV output up to 2.5 W
High power, mode-locked 532 nm output up to 2 W
Outstanding power stability
Ultra-low noise
Near diffraction-limited
TEM₀₀ output

Vanguard^™ mode-locked 355 and 532 nm lasers are designed for OEM industrial applications. Pulse repetition rates are 80 MHz with <13 ps pulse width. These quasi-CW lasers offer a superior solid state alternative to replace CW gas lasers. They deliver ultra-low noise, near diffraction limited TEM00 output in a rugged industrial platform. The Vanguard 355 nm laser is a frequency-tripled Nd:YVO4 laser, designed to bring solid-state reliability and low cost of ownership to applications such as wafer inspection, laser direct imaging, and picosecond machining. The Vanguard 532 nm laser is ideal for synchronous pumping of dye lasers.

Applications

Wafer inspection

LED processing

Photovoltaic scribing

Cell sorting

Laser direct imaging

Micro-material processing

Solar cell processing

Polyimide cutting and drilling

Output Characteristics

	Vanguard 355-2500	Vanguard 355-350	Vanguard 532-2000
Wavelength	355 nm	355 nm	532 nm
Power	2.5 W	350 mW	2 W
Repetition Rate	80 MHz ±2 MHz
Spatial Mode	TEM₀₀
M²	<1.2	<1.2	<1.3
Far Field Divergence, full angle	<1 mrad
Beam Diameter (1/e²)	1.0 mm nominal	1.0 mm nominal	1.4 mm nominal
Beam Pointing Stability	<25 µrad/°C
Beam Ellipticity	<20% far field
Average Power Stability	<2%
Amplitude Noise	<1% rms, 10 Hz to 2 MHz
Polarization Ratio	>100:1 vertical
Cold Turn-on Time (AC off to full power)	<30 min
Cold Turn-on Time (AC off to full specs)	<1 hr
Temperature Range	20–27°C
Laser Head Cooling	Water cooled	Air cooled

1. Due to our continuous product improvement program, specifications are subject to change without notice.
2. Vanguard is a Class IV – High-Power Laser, whose beam is, by definition, a safety and fire hazard. Take precautions to prevent exposure to direct and reflected
beams. Diffuse as well as specular reflections can cause severe skin or eye damage.