Full-fabric wavelength-tunable ultrashort-pulse laser
An ultra-short pulse, all-fiber technology, applied in the intersection of information science and biological science, and in the field of photonics, can solve problems such as single spectral band and small repetition frequency tuning range
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[0028] The present invention will be further described below in conjunction with drawings and embodiments.
[0029] figure 1 A schematic diagram of the structure of the wavelength-tunable ultrashort pulse laser is shown. see figure 1 , the soliton self-frequency shift system can be formed by cascading multi-stage optical fibers, specifically including erbium-doped fiber femtosecond laser source 1, erbium-doped fiber amplifier 2, lens combination 3, large mode field diameter fiber 4, lens combination 5, dichroic Mirror 6, thulium-doped fiber amplifier 7, lens combination 8, large mode field diameter optical fiber 9, lens combination 10, dichromatic mirror 11, the above components are connected in sequence. The light emitted by the femtosecond laser source is amplified by the erbium-doped fiber amplifier, and then the amplified femtosecond light is coupled into the large mode field diameter fiber 4 through the lens combination 3. The length and power of the fiber can be calcul...
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