All-optical, self-focused laser beam array for parallel laser surface processing

A Surface Emitting Laser Amplifier for Parallel Optical Buses

There has been a growing demand to increase the throughput of computer systems. To meet this demand, we have been considering a massive parallel processing computer using a space division multiplex optical bus. In this scheme, optical signal data are transmitted from one board to another without E/O and O/E repeaters. Then, the parallel optical bus system requires laser amplifiers for vertical ...

Laser Beam Hazard for flight personnel

Lasers can produce a beam of light of such intensity that permanent damage to human tissue, in particular the retina of the eye, can be caused instantaneously, even at distances of over 10 km. At lower intensities, laser beams can seriously affect visual performance without causing physical damage to the eyes; causing transient damage or causing sensation and loss of focus. Laser illumination o...

Altitude measurement using laser beam reflected from water surface

In this paper altitude measurement from water surface using laser beam is presented. Research data indicate that the reflection of infrared waves from water surface is about zero and it is less than 2% for visible radiations. Phase-shift and heterodyne technique was used for the measurement, and the laser beam ( mW p nm 10 , 700 = = l ) was modulated by a sine wave having a fixed frequency....

Addressable microlens array for parallel laser microfabrication.

Parallel processing in femtosecond-laser-based microfabrication is demonstrated using a microlens array in conjunction with a liquid-crystal spatial light modulator (SLM). A portion of the SLM is mapped onto each individual lenslet in the array and can be used to effectively switch foci on and off for fabrication. In addition, the technique allows for homogenizing the intensity of the array of ...

AlGaAs Phased Array Laser for Optical Communications