SU1536340A1 - Arrangement for mating lightguide with radiator - Google Patents

Abstract

The invention relates to a technique of fiber-optic communication, can be used in the development of devices for coupling semiconductor lasers with single-mode optical fibers, and allows to accelerate the process of alignment and reduce the amount of optical loss in conjunction. By rotating the eccentric inner sleeve 7, a maximum signal is obtained at the output end of the fiber, while the sleeve 7 engages with its elastic latch 9 on the corrugated surface of the oar sleeve 6. When the release 9 comes out of the groove, the engagement does not occur and the sleeve 7 rotates independently. In order to speed up the alignment process, holes are made in housing 1 and nozzle 3, while the mating is illuminated through one hole, and a microscope can be observed through the other. The axial direction of the light guide in the tip 11 is carried out using a threaded sleeve 8 and a collet stop 13. 3 sludge.

Description

The invention relates to a technique of fiber-optic communication and can be used in the development of devices for coupling semiconductor lasers with single-mode optical fibers.

The purpose of the invention is the acceleration of the alignment process and the reduction of optical loss during coupling.

FIG. 1 shows the device, a general view; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. one.

The device includes a housing 1 with an angular groove for placing the radiator 2 in it, a nozzle 3 with a partition in the internal cavity that has an opening, a radial groove (not indicated), a pin a (Fig. 2), and the end portion is a radial slot (not marked ), in the largest diameter, clamps 1 are installed for fixing with housing 1, and the side opening in the nozzle has a common axis and the common diameter with a side opening in housing 1, clamps k also serve to seal the driver with a radial groove 5, in the nozzle 3 is placed sleeve 6 with eccentricity bore and the knurled edge portion E (not indicated), the inner sleeve 7 from opening and eccentricity divider sleeve with the pin 8 b (FIG. 3), the resilient retainer 9 for po- gates oneshney sleeve 6, sterzhnevuyuSP

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sleeve 10 with a split end part with an internal conical taper, an internal groove (not indicated) and an external thread in the largest diameter for a backlash-free fit of the light guide at tip 11, additional clamps 12 for fixing the light guide at tip 11, collet stop 13 with shoulder and external groove threaded sleeve 1 with collar, collet 15, split washer 16 for reinforcing sleeve 7, split ring 17 for closing the holes in, multimode light guide 18 for illuminating the internal cavity of the device, seal 19 for sealing the radiator l 2.

The device works as follows.

A radiator 2 is placed into the housing 1 and pressed with a seal 19. The light guide in the tip 11 is secured with a collet 15 in a collet rest 13 with a collar and additional fasteners 12. The assembled part is inserted into the core sleeve 10 and the threaded sleeve 14 with a collar is screwed on several turns. The assembled nozzle 3 is mounted on the housing 1 and the clamps k are screwed in so that the lead 5 can slide along with the rotation of the inner sleeve 7 with the eccentric orifice. White light is transmitted through the inserted multimode light guide 18 to illuminate the internal cavity of the device. Through a hole in with a microscope, the movement of the fiber in the tip 11 to the radiator 2 is monitored. The fiber in the tip 11 is moved by the threaded bushing AND with the collar to the radiator 2 over a distance of 10-15 mm. Then the adjustment is made. For this, the inner sleeve 7 is rotated in one direction. At the same time, the elastic retainer 9 simultaneously fits into the radial slot on the wall of the nozzle 3 and into the groove of the outer sleeve 6, the end part of which has a groove. The sleeves 6 and 7 adhere. After further rotation, the elastic clamp 9 comes out of the radial slot and is engaged with the sleeve 6. The internal sleeve 7 rotates alone, since between the sleeves 6 and 7 there is also a separation sleeve 8 with a concentric hole and rigidly fixed on it the first pin b (fig. 3) 5 which prevents rotation around its

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This is the axis of the outer sleeve 6, as it enters the radial groove on the partition wall of the nozzle 3, and the second pin a (Fig. 2), which is rigidly fixed on the nozzle, enters the radial groove of the driver 5. Rotate the inner sleeve 7 until the maximum radiation is reached. After the final alignment, the fixtures k located on the nozzle 3 are fixed by means of a microscope. Axis movement of the light guide 2 in the rod 11 is controlled along the microscope. After the fixation, if necessary, the light guide in the stem 11 can be brought to the optimum distance by the threaded sleeve } 1 with a collar. The device has the possibility of repeated connections due to the core sleeve 10, the cut part of which is made with a conical taper in axial section, in which the light guide is fixed to the rod 11. The right part of the core sleeve 10 has a mortise and threaded connection with a collet stop 13 fixed by a thread sleeve and collar. The core sleeve 10 and the leash 5 form a concentric groove (not indicated) where the sprocket 16 is inserted, which presses the quotation assembly to the nozzle septum 3. In order to remove the light guide, the threaded sleeve with the collar must be unscrewed in the rod 11. The corner position is marked with a mark on the core sleeve 10 and the collet rest 13.

Claims (1)

Invention Formula A device for interfacing an optical fiber with an emitter, comprising a housing made in the form of a cylindrical sleeve with a hole for mounting the radiator, a nozzle made in the form of a hollow stepped sleeve with a partition mounted for fixation on the housing, a lead made in the form of a cylindrical sleeve with a hole and a radial groove with the first pin installed in it, eccentric outer and inner bushings, a split sleeve with a second pin fixed to it, a core bush with a hole installed left in the hole of the leash, one end of which is made split, and the other has a threaded sleeve with a collet stop, a radial groove is made in the partition of the nozzle, a corrugation is made on the outer surface of the outer sleeve, and an elastic retainer is installed on the inner sleeve, which, in order to speed up the alignment process and reduce the optical loss during conjugation, Aa 2 the pin is fixed in the nozzle septum, the second pin is installed in the groove of the nozzle septum, the collet stop and the threaded bushing are mutually rotatable, clamps are installed in the collet, and the axis is perpendicular to the axis of the device in the collet. 12 P Phie.1 Vb Fm.z