The advantages of laying optical cables by blowing in protective plastic pipes are considered. 300 km long fiber optic transmission line connecting St. Petersburg with Lyuban and Luga is presented. When laying the lines, the considered method was used.
Measuring technique. Fast tunable laser with a range of 1.5 microns.
Firm BFI Optical GmbH (Germany) released the LD model 6428, which provides the possibility of quick wavelength tuning in a range from 1500 to 1575 nm, which has high stability and performance. The tuning speed of its wavelength can reach 100 nm / s with a resolution of ~ 1 nm. The output power of the generator with an LD of this model is stable in the range from 1520 to 1570 nm and is 6 dBm (4 mW). When tuning the wavelength in the entire specified range, the absence of mode jumps is guaranteed. Instability of the established wavelength in time <100 MHz in 24 hours
fiber optic contractor jobs
Long-distance fiber optic with protective plastic pipes
The advantages of laying optical cables by blowing in protective plastic pipes are considered. 300 km long fiber optic transmission line connecting St. Petersburg with Lyuban and Luga is presented. When laying the lines, the considered method was used.
Sidestream injection synchronization using non-degenerate four-wave mixing in an LD with a distributed OS.
We experimentally demonstrated the synchronization of side-band injection between 2 LDs with a distributed OS, in which non-degenerate four-wave mixing with a high degree of saturation is used. Theor received confirmation. the assumption that injection synchronization takes place only if the frequency difference between the master and slave LDs is> 200 GHz with respect to the diversity of the Fabry-Perot LD modes. The experimental scheme is given. installation.
A radiation source module with a phase synchronization loop to form a coherent optical beam.
An optical module with a phase synchronization loop is presented, designed and manufactured for coherent optical beam formation systems. Beam Forming Devices m. used in multipath mobile communication systems with phased arrays. The module uses a phase synchronization loop with a tuning range of ~ 7-14 GHz.
On the possibility of generating and amplifying optical radiation at a wavelength of 1.3 μm in fiber optical fibers based on neodymium-doped quartz glass
The structure of a multilayer fiber waveguide is studied, which allows one to suppress radiation at a specific wavelength. It is shown that based on such a fiber made of ordinary quartz glass doped with neodymium ions and with appropriately selected parameters, fiber lasers and optical pulse amplifiers at a wavelength of 1.3 μm can be obtained.
Measuring technique. Fast tunable laser with a range of 1.5 microns.
Firm BFI Optical GmbH (Germany) released the LD model 6428, which provides the possibility of quick wavelength tuning in a range from 1500 to 1575 nm, which has high stability and performance. The tuning speed of its wavelength can reach 100 nm / s with a resolution of ~ 1 nm. The output power of the generator with an LD of this model is stable in the range from 1520 to 1570 nm and is 6 dBm (4 mW). When tuning the wavelength in the entire specified range, the absence of mode jumps is guaranteed. Instability of the established wavelength in time <100 MHz in 24 hours
fiber optic contractor jobs
Long-distance fiber optic with protective plastic pipes
The advantages of laying optical cables by blowing in protective plastic pipes are considered. 300 km long fiber optic transmission line connecting St. Petersburg with Lyuban and Luga is presented. When laying the lines, the considered method was used.
Sidestream injection synchronization using non-degenerate four-wave mixing in an LD with a distributed OS.
We experimentally demonstrated the synchronization of side-band injection between 2 LDs with a distributed OS, in which non-degenerate four-wave mixing with a high degree of saturation is used. Theor received confirmation. the assumption that injection synchronization takes place only if the frequency difference between the master and slave LDs is> 200 GHz with respect to the diversity of the Fabry-Perot LD modes. The experimental scheme is given. installation.
A radiation source module with a phase synchronization loop to form a coherent optical beam.
An optical module with a phase synchronization loop is presented, designed and manufactured for coherent optical beam formation systems. Beam Forming Devices m. used in multipath mobile communication systems with phased arrays. The module uses a phase synchronization loop with a tuning range of ~ 7-14 GHz.
On the possibility of generating and amplifying optical radiation at a wavelength of 1.3 μm in fiber optical fibers based on neodymium-doped quartz glass
The structure of a multilayer fiber waveguide is studied, which allows one to suppress radiation at a specific wavelength. It is shown that based on such a fiber made of ordinary quartz glass doped with neodymium ions and with appropriately selected parameters, fiber lasers and optical pulse amplifiers at a wavelength of 1.3 μm can be obtained.
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