Precise processing of transparent material with femtosecond laser pulses

Based on the physical mechanisms of femtosecond laser-transparent materials interactions, three kinds of micromachining including three dimensional data storage, optical waveguide network and grating with an amplified Ti:sapphire laser system are presented. These optical devices on different transparent materials by femtosecond pulses are featured. The effect of laser machined parameters such as irradiated energy, the scanning speed and the recording material upon fabricated optical devices is studied in detail. From examples, the versatility of femtosecond laser precise micromachining technique is demonstrated. Practical application of femtosecond laser materials processing is illuminated.