Currently, direct-write waveguide fabrication is probably the most widely studied application of femtosecond laser micromachining in transparent dielectrics. Devices such as buried waveguides, power splitters, couplers, gratings, and optical amplifiers have all been demonstrated. Waveguide properties depend critically on the sample material properties and writing laser characteristics. In this paper, we discuss the challenges facing researchers using the femtosecond laser direct-write technique with specific emphasis being placed on the suitability of fused silica and phosphate glass as device hosts for different applications.
|Pages (from-to)||1370 - 1388|
|Number of pages||19|
|Journal||IEEE Journal of Selected Topics in Quantum Electronics|
|Publication status||Published - 25 Jul 2008|
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- light amplifiers
- optical waveguides
- optoelectronic devices pulsed laser applications
- ultrashort pulses
- laser machining
- laser materials processing applications
- optical glass
- ultrafast optics