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All solid-state 455nm pulsed laser based on neodymium-doped fluorinated lutetium lithium crystal

A pulsed laser, all-solid-state technology, used in lasers, laser parts, phonon exciters, etc., can solve problems such as inappropriate underwater communication, complex structure, etc., to reduce instability, small size, and crystal reception. big angle effect

Inactive Publication Date: 2011-01-19
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology

In 2000, M.Schmidt et al. reported that Nd:LiLuF crystal was used as laser crystal to obtain 910nm laser output, but at that time a 792nm tuned Ti:sapphire laser was used as the pump source, and the output light was continuous light, and the structure was relatively complicated , not suitable for underwater communication

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  • All solid-state 455nm pulsed laser based on neodymium-doped fluorinated lutetium lithium crystal
  • All solid-state 455nm pulsed laser based on neodymium-doped fluorinated lutetium lithium crystal
  • All solid-state 455nm pulsed laser based on neodymium-doped fluorinated lutetium lithium crystal

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Embodiment Construction

[0019] see figure 1 , figure 1 It is a structural schematic diagram of an embodiment of an all-solid-state 455nm pulsed laser based on a neodymium-doped lutetium fluoride lithium crystal in the present invention. As can be seen from the figure, the present invention is based on an all-solid-state 455nm pulsed laser of neodymium-doped lutetium fluoride lithium crystal, which consists of a laser diode 1 with a pigtail output, and a pumping optical coupling system is sequentially arranged along the forward direction of the output laser of the laser diode 1 2. Laser resonator 3 and frequency doubling crystal 4 including Nd:LiLuF crystal and electro-optic Q-switching crystal

[0020] Described laser resonant cavity 3 is the hemispherical cavity that is made of a plane mirror 301 and the plano-concave mirror 302 of certain curvature radius, has the Nd:LiLuF crystal 303 of water-cooled temperature control in described laser resonant cavity 3 and adopts electro-optic modulation Lith...

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Abstract

The invention relates to an all solid-state 455nm pulsed laser based on a neodymium-doped fluorinated lutetium lithium crystal, which is suitable for underwater laser communications. The all solid-state 455 nm pulsed laser is characterized by comprising a laser diode output with tail fibers, and a pump optical coupling system, a laser cavity and a multiple frequency crystal are sequentially arranged along the advanced direction of the laser diode outputting a laser, wherein the laser cavity comprises an Nd: LiLuF crystal and an electrooptic Q-crystal. The invention has the characteristics of compact structure, small size, long life and stable working.

Description

technical field [0001] The invention relates to an all-solid-state laser, in particular to an all-solid-state 455nm pulse laser based on neodymium-doped lutetium fluoride lithium (hereinafter referred to as Nd:LiLuF) crystal Background technique [0002] The wavelength of blue light is in the low-loss window of seawater, and the transmission in the open sea and deep sea has low loss characteristics. Therefore, the 455nm blue-green laser has become an important light source in marine applications and underwater resource detection. Communication with deep water can be realized by relying on the atmosphere, air / seawater interface and seawater as optical channels through blue-green laser signals; blue-green lasers can also be installed on underwater carriers to achieve underwater detection. [0003] At present, to obtain 455nm laser output, most of them use titanium sapphire laser to obtain 910nm laser output, and then use frequency doubling method to realize it, but this method...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/0941H01S3/16H01S3/08H01S3/115H01S3/109
Inventor 陈卫标李锐余婷
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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