Generation of tunable femtosecond pulses in the 1. 21--1. 27 [mu]m and 605--635 nm wavelength region by using a regeneratively initiated self-mode-locked Cr:forsterite laser
- Cornell Univ., Ithaca, NY (United States). School of Electrical Engineering
- Lawrence Livermore National Lab., Livermore, CA (United States)
A detailed description of the design and operational characteristics of a regeneratively initiated, self-mode-locked Cr:forsterite laser pumped by a continuous-wave Nd:YAG laser is given. Without compensating for the intracavity positive group velocity dispersion, regenerative acoustooptic modulation produced pulses of between 41 and 6.5 ps (FWHM) at 1.23 [mu]m with average output powers of between 280 and 380 mW, respectively. Using intracavity negative group-velocity-dispersion compensation, nearly transform-limited femtosecond pulses of 48 fs (FWHM) duration were generated with average TEM[sub 00] output powers of 380 mW at 1.23 [mu]m. By tuning the output of the mode-locked laser from 1.211 to 1.264 [mu]m, the dispersion (second and third order) of the Cr:forsterite gain medium has been measured. The operational wavelength range of the laser was extended to the visible region from 605 to 635 nm by external frequency doubling in a LiIO[sub 3] nonlinear crystal. With approximately 250 mW of fundamental pump power at 1.23 [mu]m, red pulses of 116 fs (FWHM) duration at 615 nm were obtained with conversion efficiencies approaching 10 percent.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6929064
- Journal Information:
- IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (United States), Vol. 30:8; ISSN 0018-9197
- Country of Publication:
- United States
- Language:
- English
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Sub-50 femtosecond high-peak power pulses from a regeneratively initiated self-sustained continuous-wave mode-locked chromium-doped forsterite laser
Sub-50 femtosecond high-peak power pulses from a regeneratively initiated self-sustained continuous-wave mode-locked chromium-doped forsterite laser
Related Subjects
SOLID STATE LASERS
DESIGN
PERFORMANCE
CHROMIUM IONS
LASER MATERIALS
MAGNESIUM OXIDES
MODE LOCKING
OPERATION
OPTICAL PUMPING
SILICON OXIDES
ALKALINE EARTH METAL COMPOUNDS
CHALCOGENIDES
CHARGED PARTICLES
IONS
LASERS
MAGNESIUM COMPOUNDS
MATERIALS
OXIDES
OXYGEN COMPOUNDS
PUMPING
SILICON COMPOUNDS
426002* - Engineering- Lasers & Masers- (1990-)