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Green Laser Pointer Used For Interactive Teaching

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By Author: long jing
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green laser pointer  Used for Interactive Teaching

The other paper reported that under the action of the pump light produced four components of the Raman fiber laser Stocks (The principle is similar to Figure 1) [5]. Role in the 1100nm pump light, the first component to be 1347nm of a Stocks, Stocks in a component under the output 1427nm pump laser. As long as the pump signal strength can be achieved before a large enough optical pumping of Stocks Stocks under several levels of light. This laser output of 1427nm, 1455nm and 1480nm three two, three and four components of the laser wavelength Stocks. * Required to adjust the output laser wavelength composition of different laser wavelengths Bragg grating cavity. China has developed a series of wireless electronic products including  green laser pointer .

Which 1427nm spectral line width of 0.8nm, 1455nm and 1480nm spectral line width of 0.4nm. Continuous spectrum of ultra-short light pulse in TDM / WDM system has an important significance. Ultrashort optical pulses can not only ...
... improve the TMD system in single-channel bit rate, while its large continuous spectrum can also be provided for the WDM system many wavelength channels. Most of the supercontinuum generated mainly in the following two methods: compression of ultrashort optical pulses obtained using broadband spectrum and nonlinear devices pulse broadening of the spectrum. At present, except in the use of NOLM laser pulse compression of ultrashort optical pulse generation methods.  100mW green laser pointer  also integrates the wireless keyboard control technology.

There were also reports on the meeting of active mode-locked dispersion-managed fiber laser [6] produce ultrashort optical pulses, the laser based on dispersion-managed optical pulse compression method, the dispersion-managed optical fiber into the cavity to achieve pulse compression produces a wide continuous spectrum of purposes. Also reported that now the most popular is the use of most of the nonlinear optical fiber or optical amplifiers Supercontinuum Generation. Which produce a wide continuum of fiber is most economical and practical. According to reports, using different types of fiber, resulting in a continuous spectrum bandwidth is also different. For example, in the middle of pulling two small special thick fiber (see Figure 3) [7], resulting in the continuous spectrum is very wide tunable wavelength range of 500nm ~ 1600nm. With the left and right keys, 200mW green Laser Pointer can be easily and conveniently used.

Road based on nonlinear ring fiber laser mirror: to produce high repetition rate ultra-short light pulse and dark pulse compression conversion. Typically, ultrashort optical pulses from actively mode-locked laser source such as a gain switch semiconductor laser outside the direct light emitted pulse width is wide, and the use of fiber in the laser output pulse is compressed to the external compression of light pulses significantly the base. However, these are the base of the compressed pulse is not suitable for long-distance transmission. Resulting in low noise-free base of ultrashort light pulses is the core technology of TDM systems. With LED indicator of 50mW green laser pointer, the distance that the laser could reach is above 200 meter.

 
 

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