LM-2012 green laser pointer could work for a long time without stop

The absorption lines of the dye laser wavelength is very close; dye absorption lines should be very close to the laser wavelength; the absorption line width to be greater than or equal to the laser linewidth; absorption line width is greater than or equal to the laser linewidth ; its relaxation time should be shorter than the pulse in the cavity round-trip time, the relaxation time should be shorter than the pulse in the cavity round-trip time, or else passively Q-switched laser.
5.2 Gas Lasers 5.2.1 helium - neon (He-Ne) laser (He-Ne) laser, He-Ne laser structure - the structure of the laser structure of He-Ne laser, but they are by the laser tube and laser Power. The laser tube by the discharge tube - laser structure but they are by the laser tube and laser power. The laser tube consists of the structure of the discharge tube, the lasers, electrodes and optical resonant cavity. Electrode and the optical resonator. It is easy to buy a LM-2012 green laser pointer.The discharge tube is the heart of the He-Ne laser discharge tube is the heart of the He-Ne laser, which generated laser. It generated laser. The discharge tube usually by capillary gas storage room. Capillary and gas storage chamber composition. Discharge tube filled with a certain proportion of helium ()), neon certain proportion of helium (He), neon (Ne) gas) when the electrode coupled with high voltage, the body, when the electrode coupled with a high voltage, the capillary in the the gas begins to discharge to the neon atoms by stimulated gas-discharge neon atoms by stimulated, resulting in the inversion. Storage chamber and the capillary is connected to the inversion. Connected to the storage chamber and the capillary, where a gas discharge, where a gas discharge, its role is to compensate for the slow leak and pipe components deflated or adsorbed gases cause of He, Ne gas ratio and total pressure in the body caused by the gas ratio and total pressure changes, extend the life of the device. LM-2012 green laser pointer could work for a long time without stop.Changes extend the life of the device. The discharge tube generally is the use made of GG17 glass. Output power and made of glass. Like is made of glass (5-9) the basic structure of the wavelength of He-Ne laser with good stability device can be small coefficient of thermal expansion of quartz glass production. Coefficient of quartz glass production. He-Ne laser tube anode is generally made of tungsten rod cathode multi-electron emission rate and the sputtering rate of aluminum - laser tube anode is generally made from a tungsten rod laser tube anode is generally made of tungsten rod , made of alloy.LM-2012 green laser pointer has the mains switch on bottom of it. In order to increase the electron emission area and reduce cathode sputtering, generally regarded cathode made of a cylindrical alloy. In order to increase the electron emission area and reduce cathode sputtering, generally regarded cathode made of a cylindrical lead to the tube, and then use the tungsten rod. Stick diverted to the outside tube. He-Ne laser due to the low gain, and the general cavity - lasers due to gain and low laser gain and low, with the concave cavity, the plane mirror output, with the concave cavity, the plane mirror output, the transmittance of about 1% to 2% , concave reflecting mirror. , Concave reflecting mirror ~% concave mirror for reflecting mirror. He-Ne laser tube structure is varied, the laser tube structure is varied - in the form of the structure of the laser tube is a wide variety of cavity and a discharge tube placed can be divided into cavity external cavity and semi-cavity type. , An external cavity and intracavity. The LD and accessories of LM-2012 green laser pointer.The general specification of green laser pointer should be met at first.as shown in Figure (b) below, the advantages: The shock of external cavity optical device shown in shows, the advantages: optical resonator mirrors and the discharge tube is separate from the resonator mirrors and discharge tube separation, increase gas storage capacity.