Thursday, January 24, 2013

The workshop of mobile phone jammer and the customer

Warehouse of cell phone jammer
The workshop of mobile phone jammer and the customer needs to sign the qualification report of mobile phone jammer together. Early laser diode has many practical limitations, for example, only 77K

microsecond pulses at low temperatures to work, after more than eight years before Bell Labs and Leningrad (now St. Petersburg) about flying (Ioffe) physical Institute to create a work at room

temperature continuous devices. And sufficient reliable semiconductor lasers emerge until the mid-1970s. Semiconductor lasers is very small, as big as the smallest grain of rice. Operating

wavelength depends on the laser material, usually 0.6 to 1.55 microns, due to a variety of applications, even more short-wavelength devices in development. It has been reported to Ⅱ ~ Ⅳ valuable

elements of compounds, such as ZnSe laser material for the work, low temperature has been 0.46 micron output, while the wavelength of 0.50 ~ 0.51 micron devices at room temperature continuously for

more than 10 mW output power has reached. But has not yet achieved commercialization. Semiconductor laser optical fiber communication is the most important foreseeable applications, on the one hand

is a worldwide undersea fiber-optic long-distance communication, the other is a variety of regional networks. The latter include high-speed computer networks, avionics systems, health

communications network, such as high-definition closed-circuit television network.More warehouse of

mobile phone jammer will be built for storing more mobile phone jammer .
QWL in the structure is characterized by its active region is composed of multiple or single-well width of 100 potential well formed, because the material is less than the width of the potential

well the electron de Broglie wavelength of the wave, resulting in a quantum effect , a continuous band split into sub-levels, therefore, is particularly conducive to the effective carrier filling

the needs of extremely low lasing current reading value. the structure of the semiconductor laser is mainly applied in single and multi-quantum well, a single quantum well (SQW) laser structure is

essentially the ordinary double-heterostructure (DH) laser active layer thickness made of the following tens of nm of a laser, usually thick barrier so that the adjacent potential well electronic

wave function overlap of the periodic structure does not occur as multiple quantum well (MQW).

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