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目前显示的是标签为“optical communication”的博文
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  1600nm Er YAG Laser For Optical Communication - Laser Crylink 1600nm laser is suitable for optical communication . 1600nm is located in the safe band of the human eye . And 1600nm is located in one of the atmospheric laser transmission windows, the transmission distance is farther, the corresponding distance and resolution and speed resolution are more accurate, and the corresponding photodetector parts have high detection sensitivity. Theory of 1600nm Er YAG laser Gain medium - Er:YAG The 4I11/2~4I13/2 and 4I13/2~4I15/2 transitions of the Er3+ ion produce laser radiation in two mid-infrared bands. The wavelength of the 4I11/2~4I13/2 transition is 2.7 μm~3 μm. 4I13/2~4I15/2 can emit at a wavelength of around 1.6 μm, which can meet the needs of space optical communication and other fields. E-O Q-switch:BBO Electro-optical Q-switching is to realize Q-modulation by using the electro-optic effect of the crystal, inserting a polarizer in the cavity, and using a polarizing plate t...
  532nm Nd YAG Laser For Optical Communication - Laser Crylink Introduction of 532nm Nd YAG Laser For Optical Communication 532nm laser being used for underwater optical communication   Because the low loss window in seawater is 0.46nm~0.54nm, and the pulse peak energy should be greater than 200mJ, the pulse width is generally 10ns~20ns, the repetition frequency is about 50Hz, and the divergence angle is generally less than 0.1mrad, the laser spot is as uniform as possible, and the 532nm Nd:YAGlaser with electro-optic Q-switching can be used for these aspects. Theory of crylink’s 532nm Nd YAG Laser Laser Crystal - Nd:YAG It is used to create a laser with a wavelength of 1064 nm in order to provide fundamental light for a laser with a wavelength of 532 nm . The gain medium Nd:YAG is a cubic crystal that is optically isotropic and has a 1.0 percent Nd3+ ion doping concentration. EO Q-Switch - LiNbO 3 To achieve high peak power, Q-switching technology must ...

Introduction of 457nm Nd YVO4 laser for optical communication

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Lasers with a wavelength of 457nm are used in underwater blue-ray fuze communication and fuze target identification The 457nm laser  employs a semiconductor-pumped frequency doubling method. The 457nm blue laser has a deeper color than the 473nm blue laser, and acousto-optic Q-switching can provide a short pulse with a high repetition rate and power. It is critical to design an underwater intelligent weapon communication system. Theory of 457nm Nd YVO4 laser AO-Q switch : TeO 2 1064nm antireflection film is deposited on both ends. The acousto-optic Q-switch element is placed near the Nd:YVO4 crystal, and the temperature control and refrigeration are controlled by the semiconductor cooler. Nd:YVO 4  crystal LBO Frequency conversion TEC1 and TEC2——TEC1 and TEC2 perform double-channel refrigeration on LD and Nd:YVO4, and refrigerating by fine-tuning semiconductor refrigerators to preventing laser threshold from rising. The precision of temperature control is 0.02...