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Method and device for realising an optical link with laser pulses

A technology of laser pulse and optical connection, applied in the field of optical connection, can solve problems such as eye hazards, achieve the effects of reducing glare, reducing emission energy and consumption energy, and good conversion ratio

Inactive Publication Date: 2011-09-14
MBDA FRANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This not only creates a serious eye hazard for the operator of the device, but also some high-power laser sources

Method used

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  • Method and device for realising an optical link with laser pulses
  • Method and device for realising an optical link with laser pulses
  • Method and device for realising an optical link with laser pulses

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Embodiment Construction

[0024] exist figure 1 On , a device 1 is shown capable of positioning a missile 2 relative to a reference axis X-X (for example an aiming axis), said missile 2 moving away from the positioning device 1 at a constant speed. This positioning device is for example of the type described in document US-4710028 (FR-2583523).

[0025] In order to locate the missile via the device 1 , the missile 2 has a laser source 3 of the laser diode or VCSEL laser type, which can emit laser pulses 4 in the direction of said device 1 .

[0026] The means 5 mounted on the missile 1 and intended to control the laser source 3 comprise a capacitor 6 arranged in parallel with said laser source 3 and adapted to be charged by a voltage source 7 by means of a controlled switch 8 . Likewise, the laser source 3 circuit with the load resistor 9 is closed by means of a controlled switch 10 .

[0027] In addition, the device 5 also includes a generator 11 of a synchronous periodic pulse 12 (see Figure 3A )...

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PUM

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Abstract

The invention concerns a method and a device for producing an optical link with laser pulses for locating a mobile. The invention is characterized in that it consists in varying the energy of said successive laser pulses (4) as an increasing function of the time (t) elapsing from the start of the emission of said laser pulses more or less in the direction of said receiver. The start of the emission of said laser impulse is delayed relative to the start of the mobile.

Description

technical field [0001] The present invention relates to a method and device for realizing the optical connection between the optical pulse transmitter and the optical pulse receiver by using optical pulses, especially suitable for application in missile positioning and guidance devices, such as in document US-4710028 ( as described in FR-2583523). Background technique [0002] In some known arrangements of this type, the optical pulse transmitter may be mounted on the missile or on fixed equipment, the optical link then consisting of a reflector mounted on the missile and allowing the optical pulse To the detector, the light pulse transmitter is usually a bulky and power consuming flash lamp. [0003] Therefore, it has been considered to replace said flash lamp with a laser source. In that case, however, the emitted laser energy should be large in order to ensure a large effective range of the optical connection against possible interference. This not only creates a serio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/22F41G7/26H04B10/00
CPCH04B10/22F41G7/301H04B10/1121H04B10/80F41G7/26
Inventor B·特内泽F·贝尔诺斯
Owner MBDA FRANCE