Here’s a surprisly simple way to build yourself a laser-based listening device. It consists of two modules, a transmitter and a receiver. The transmitter is a set of lasers, one is visible red ...

The laser is a 2.5 W 445 nm module which is very popular with low-cost laser cutter setups. It’s a fully self-contained air cooled unit that just needs a source of 12 V to fire up. That makes it ...

“Increasing the Q-switched pulse width to 7.7 μs does ... reaching the benchmark for nanosecond laser-manufactured OSC modules.” Fabricating a device with an area of 1 cm2, the module yielded ...

The HHL modules are hermetically sealed, electrically isolated and can integrate an array of options, such as optics for rapid-axis collimation. The proprietary laser chip design from Sheaumann ...