Optoelectronic transmitter

FIELD: optoelectronics.

SUBSTANCE: proposed optoelectronic transmitter has laser and optoelectronic converter. Newly introduced in device are electrooptic modulator, three mirrors, and first and second correcting lenses. Optical output of laser is coupled with optical input of optoelectronic converter through electrooptic modulator affording radiation output from optoelectronic converter; it also has three mirrors and first correcting lens ensuring parallelism of radiation flux. Optical output of optoelectronic converter that functions to provide for shaping output radiation at frequency exceeding laser radiation frequency is coupled through second correcting lens with optical input of laser for pumping the latter.

EFFECT: enhanced radiation power raised without using large components.

1 cl, 1 dwg

 

The invention relates to the field of optoelectronics and can be used in optical systems.

Known optoelectronic transmitter, described in the book Lesukov "Handbook of fundamentals for infrared technology". - M, Owls. Radio, 1978, str. It consists of a radiation source optoelectronic Converter, which can radiate including homogeneous radiation. However, to increase the radiation power required additional nodes.

Known optoelectronic transmitter that uses opto-electronic Converter. He stated in the book Ikipedia "Introduction to optical electronics". - M, High school, 1991, p.62. Radiation can be homogeneous. At the input of the Converter may receive the light energy from the laser, and the output change range. However, to increase the radiation power requires the use of bulky nodes.

Using the proposed device increases the radiation power without the use of bulky nodes. This is achieved by introducing between the laser and optoelectronic Converter: electro-optic modulator, rotated three reflective mirrors and the first corrective lenses, as well as the introduction of the second corrective lens, and the optical laser output is connected through an electro-optical modulator with optical input of the first power is also reflective mirror, the optical output of which is connected with the optical input of the second rotated reflective mirrors having optical output associated with the optical input of the third rotated reflective mirrors, the optical output of which is connected through the first corrective lens with optical input optoelectronic Converter with optical output, which is connected through a second corrective lens with optical input of the laser.

In the drawing and in the text the following notation.

1 - rear-facing reflective mirror;

2 is an electro-optical modulator;

3 - laser;

4 - corrective lens;

5 - optoelectronic transducer;

6 - corrective lens;

7, 8 is rotated reflective mirrors,

when this optical output of the laser 3 is connected through an electro-optical modulator 2 with optical input rotated reflective mirror 1, the optical output of which is connected with the optical input is turned reflective mirror 7 having optical output associated with optical input rotated reflective mirror 8, the optical output of which is connected through a corrective lens 6 with the optical input of the optoelectronic Converter 5 having an optical output, which is connected through a corrective lens 4 with optical input laser 3.

The operation is carried out following the m way. Laser 3 generates a luminous flux, which passes through an electro-optical modulator 2 and then reflected from the rotated reflective mirrors 1, 7, 8, is fed to the correcting lens 6, which maintains the parallelism of the rays within the beam. With this corrective lens luminous flux enters the optoelectronic Converter 5, which can also amplify the signal. At the output there is another selectr coming through the corrective lens 4 on the optical input of the laser 3. After increasing the power. When this necessary condition is the availability of frequency spectrum higher than the laser frequency. An example of a specific implementation of an optoelectronic Converter, which increases the frequency spectrum represented, for example, in the above-mentioned first and second analog str and p.62.

An example of a specific implementation of laser, which can increase the radiation power, in the exercise of pumping about by the light of the increased frequency spectrum of the emitted spectrum, represented, for example, in the above-mentioned first analog on p.108. In contrast to its predecessors in this device there is no image pictures, and radiation optoelectronic transducer 5 is uniform. Thanks to the mirrors 1, 7, 8 is positive clicks the percentage relationship of the optical output of the laser 3 to its entrance. The intensity of the light entering the input laser 3 with optoelectronic transducer 5, exceeds the intensity of the light coming from the laser output 3 also increases. Thus, there is an avalanche increase of light energy to until it is saturated, depending on the nature of the items included in the above sites. With the help of corrective lenses 4 interfacing is provided a light beam from the optical output of the optoelectronic Converter 5 with optical input laser 3 for the implementation of pumping. The output of the light energy by using electro-optical modulator 2. Its mode of operation provides a continuous or pulsed radiation.

An example of specific performance presented in the above-mentioned second analog p.65-69. As noted in the source specified in the first counterpart str, the optical loss in the crystal modulator is 0.5 dB/m, which corresponds to small attenuation.

The proposed device greatly increases the radiation power without increasing the bulkiness. The most effective use of crystalline laser.

Optoelectronic transmitter containing the laser and opto-electronic Converter, and the optical output of the laser is connected with the optical input of the optoelectronic p is OBRAZOVATEL, characterized in that the input of the electro-optic modulator, three mirrors and the first and second corrective lens, and the optical output of the laser is connected with the optical input of the optoelectronic transducer through an electro-optical modulator, configured to implement the radiation output of an optoelectronic transmitter, three mirrors and the first corrective lens capable of parallel radiation flux, and optical output of the optoelectronic transducer made with the possibility of the formation of the output radiation with a frequency higher than the laser frequency, is connected through the second corrective lens with optical input of the laser to carry out its pumping.



 

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