Coherent has introduced a frequency tripled, diode-pumped solid-state laser for cost-sensitive micromachining tasks such as scribing sapphire substrates used in the fabrication of GaN LEDs.
The Avia 355-5 is a Q-switched Nd:YVO4 laser that delivers 5W of 355nm output at 50kHz.
It is suitable for operation at repetition rates of up to 150kHz.
Its combination of high-repetition rate and short pulse length (<20nsec at 5W) enables high-throughput processing with minimal heat affected zone (HAZ).
The Avia 355-5 is a cost-effective and compact OEM product that offers many of the same features found on more powerful Avia models.
It features ThermEQ, PulseEQ and Pulsetrack, which enable precise control of the delivered pulse energy, allowing the OEM to define and optimise its laser process.
The laser has an automated harmonic crystal shifter to maintain constant output power for more than 20,000 hours and help reduce the cost of ownership.
The laser's Posilock beam position sensor and feedback loop result in high beam position stability over the life of the laser.
The Avia 355-5 has been designed for integration with a laser head measuring only 491 x 216 x 141mm.
The laser also delivers enhanced reliability and ease of maintenance through the use of an efficient single-pump diode module that is field replaceable.
