Dual-wavelength generation of picosecond pulses with 9.8 GHz repetition rate in Nd : YAG waveguide laser with graphene
- A.M. Prokhorov General Physics Institute, Russian Academy of Sciences, ul. Vavilova 38, 119991 Moscow (Russian Federation)
- Fiber Optics Research Center, Russian Academy of Sciences, ul. Vavilova 38, 119991 Moscow (Russian Federation)
We report a new solid-state waveguide laser generating picosecond pulses with a GHz repetition rate, based on the use of graphene as a saturable absorber. Lasing at the main transverse mode is provided by the geometry of a cylindrical waveguide formed in the active crystal volume by the method of direct writing with a femtosecond laser beam. Fine tuning of the intracavity interferometer formed between the active medium and output mirror makes it possible to control the spectral-temporal parameters of output radiation and to smoothly tune the repetition rate of pulses having a duration of less than 20 ps. In particular, the possibility of dual-wavelength generation in the regime of continuous passive mode locking using a single saturable absorber based on graphene is demonstrated. By amplifying laser output radiation in the ytterbium fibre amplifier, an average output power of 530 mW is obtained. (paper)
- OSTI ID:
- 23004929
- Journal Information:
- Quantum Electronics (Woodbury, N.Y.), Vol. 49, Issue 4; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7818
- Country of Publication:
- United States
- Language:
- English
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