The Series LEP End-Pumped Nd:YAG Lasers represent the newest member of Lee Laser's
highly successful diode-pumped solid-state product line. The Series LEP contains both
Nd:YAG and Nd:YVO4 (vanadate) models for a variety of industrial micro-machining
applications.
Initial offerings include the Nd:YAG Model LEP-Y6TQ/30 rated at 6 Watts average power at 10
kHz pulse rate, and the Nd:YVO4 Model LEP-V6TQ rated at 6 Watts at 30 kHz. Both lasers
produce a high-quality TEMoo-mode beam with Mē < 1.2.
OEM configurations of both lasers are presently available. The power supply is 19-inch rackmountable
with front panel height of 7 inches (178 mm) and depth of 20 inches (508 mm).
The optical assembly is a compact 22.7 inches (576 mm) long with provision for an attached
optional beam expander. Optical beam centerline height is 4.25 inches (108 mm). The lasers
are totally air cooled and will operate in environments up to 35°C. Laser operation is totally
controlled from the user's computer.
The Nd:YAG Model LEP-Y6TQ/30 is intended for a variety of resistor and microcircuit
trimming and marking applications where the operational pulse rates are less than 50 kHz.
The Nd:YVO4 (vanadate) Model LEP-V6TQ benefits from highly stable pulse rates from 20
kHz to 200 kHz for high-speed marking, trimming and micro-machining. For both lasers,
nominal pulse widths are near 30 ns over their entire range of pulse rates.
For heavier trimming and marking applications, Lee Laser offers the Nd:YAG Model LEPY6TQ/
70 that produces longer pulse widths: 70 ns at 1 kHz and 150 ns at 10 kHz.
The Series LEP Lasers are designed for total computer control of all laser functions. As such,
no control panel is required to operate these lasers. Each laser contains interface circuitry to
accept control instructions from a user-supplied computer.
As with Lee Laser's highly popular side-pumped Series LDP lasers, the Series LEP lasers
deliver long expected diode lifetime in the range of 10,000 to 20,000 hours. The laser diodes
are warranted for one year or 8000 hours, whichever comes first.
The laser diodes are installed inside the power supply chassis. A 4-meter single-fiber optical
cable delivers the diode pump power to the optical resonator. Replacement of the diode
module requires only a few minutes. To simplify diode module replacement and reduce cost,
Series LEP lasers permit the reuse of the existing optical fiber cable.
