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Laser frequency stabilization and measurement of optical frequencies. Edition No. 1
VDM Publishing House, January 2012, Pages: 80
This thesis is dedicated to measurement of optical frequencies with applications in metrology. The frequency/time interval is the best measurable quantity. The invention of the femtosecond frequency comb technique greatly simplified linking the radio-frequency and the optical-frequency standards. A primary wavelength standard for optical communications was developed in the first part of this work: the distributed feedback (DFB) laser diode was frequency stabilized to sub-Doppler spectral line of acetylene at ~1540 nm and its research, investigation of properties and absolute frequency measurements are described. The implementation and testing of commercial femtosecond comb makes second part of this work. Software for online frequency evaluation, tests of counting quality and frequency stabilization of the comb to optical frequency standard - iodine stabilized Nd:YAG laser - are described.
Caroline Waruguru Ndirangu currently teaches at the University of Nairobi, Kenya in the Department of Administration and Planning. Her area of specialization is Curriculum Studies. She is also training to teach Education in Emergencies which is a relatively new area of study. She is pursuing her PhD at the same University. She is mother of two.