Abstract
Femtosecond (fs) laser direct writing of birefringent structures in silica has been used to generate unique optical devices that can manipulate and characterize the spatial polarization properties of light. So far, devices including spatial polarization converters [1] and polarization sensitive cameras [2, 3], and geometric phase holograms [4] have been demonstrated. Recently, a number of high power fs laser sources at high repetition rates (1-100 MHz) have become commercially available. As a result the use of high repetition rate fs laser sources has become a popular choice to increase the throughput of direct fs laser writing systems.
© 2018 The Japan Society of Applied Physics
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