Title :
Subharmonic oscillations and spatial sweeping of isodiffracting ultrashort pulses
Author :
Feng, Songhe ; Winful, H.G.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA
Abstract :
Summary form only given.We present a family of closed-form analytical solutions of Hermite-Gaussian pulses which are exact solutions of the paraxial wave equation. These solutions describe isodiffacting ultrashort pulses with higher-order transverse spatial modes. They can be used to model higher-order ultrashort pulses generated by mode locking of both longitudinal and transverse modes in laser cavities. Our solutions show that a total mode lock of TEM/sub 00/ and TEM/sub 01/ transverse spatial modes leads to subharmonic oscillations of the output pulse intensities and a spatial sweeping of femtosecond laser pulses.
Keywords :
high-speed optical techniques; laser beams; laser cavity resonators; laser mode locking; laser modes; Hermite-Gaussian pulses; TEM/sub 00/ transverse spatial modes; TEM/sub 01/ transverse spatial modes; closed-form analytical solutions; femtosecond laser pulses; higher-order transverse spatial modes; higher-order ultrashort pulses; isodiffacting ultrashort pulses; isodiffracting ultrashort pulses; laser mode locking; output pulse intensities; paraxial wave equation; spatial sweeping; subharmonic oscillation; subharmonic oscillations; Continuous wavelet transforms; Delay; Interferometry; Laser modes; Optical pulses; Optimized production technology; Plasmas; Power capacitors; Pulse generation; Tin;
Conference_Titel :
Lasers and Electro-Optics, 2000. (CLEO 2000). Conference on
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
1-55752-634-6
DOI :
10.1109/CLEO.2000.907143
