Generation of 48-fs pulses and measurement of crystal dispersion by using a regeneratively initiated self-mode-locked chromium-doped forsterite laser
- School of Electrical Engineering, Cornell University, Ithaca, New York 14853 (United States)
- Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
A regeneratively initiated self-mode-locked chromium-doped forsterite laser operated at 3.5 [degree]C is described. By employing 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. Regenerative initiation provides improvement in the output stability and ease of operation compared with fixed-frequency acousto-optic modulators. By tuning the mode-locked laser in the range 1.21--1.26 [mu]m, estimated values for forsterite dispersion constants have also been obtained for the first time to our knowledge. The demonstrated power and stability open the door to applications such as efficient second-harmonic generation.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6537592
- Journal Information:
- Optics Letters; (United States), Journal Name: Optics Letters; (United States) Vol. 18:10; ISSN 0146-9592; ISSN OPLEDP
- Country of Publication:
- United States
- Language:
- English
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