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

Inactive Publication Date: 2015-12-30
苏州龙格库塔光电科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, only a small repetition rate tuning range and a relatively single spectral band

Method used

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  • Full-fabric wavelength-tunable ultrashort-pulse laser
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  • Full-fabric wavelength-tunable ultrashort-pulse laser

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Embodiment Construction

[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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Abstract

The invention discloses a full-fabric wavelength-tunable ultrashort-pulse laser which comprises an erbium-doped fiber femtosecond laser source (1) and the like. The erbium-doped fiber femtosecond laser source (1), an erbium-doped optical fiber amplifier (2), a first lens combination (3), a first large-mode-field diameter optical fiber (4), a second lens combination (5), a first dichroic mirror (6), a thulium-doped fiber amplifier (7), a third lens combination (8), a second large-mode-field diameter optical fiber (9), a fourth lens combination (10) and a second dichroic mirror (11) are sequentially connected through space light. According to the full-fabric wavelength-tunable ultrashort-pulse laser, laser generated by an ultrashort pulse tuning technology achieved through a fiber soliton self-frequency shift effect is narrower in width and better in pulse quality compared with an initial pulse, and a wide range of tuning can be achieved for the wavelength; if the erbium-doped optical fiber amplifier and the thulium-doped fiber amplifier are utilized for conducting cascade pumping on fiber soliton pulse at different wave bands, the wavelength tuning range can be expanded to a 3 micron wave band from a 1.55 micron wave band.

Description

technical field [0001] The invention belongs to the interdisciplinary technical field of photonics, information science and biological science, and specifically relates to an all-fiber wavelength tunable ultrashort pulse laser, which can be widely used in various scientific research and industrial fields, such as nonlinear optics and ultrafast spectroscopy , bio-optics, photochemistry, micro-nano processing, etc. Background technique [0002] Since the 1990s, ultra-short (10 -12 -10 -15 s) With the rapid development of pulse light source technology, the energy of light pulses has reached micro-joules (10 -6 J) magnitude, the pulse width can be as narrow as several femtoseconds (10 -15 s), all kinds of pulsed light sources can cover different wavelength ranges. The development of ultrashort pulse light source not only promoted the birth of ultrafast optics, but also greatly promoted the scientific research work in other fields, which had a profound impact on the progress ...

Claims

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Application Information

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IPC IPC(8): H01S3/10H01S3/067
Inventor 魏一振陈飞鸿
Owner 苏州龙格库塔光电科技有限公司
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