Optical alignment device for aligning opto-electronic component with optical component - has metallic holder of optical fibre which is adjusted in three dimensions until optimal optical coupling is achieved

摘要

The optical fibre (1) must be aligned on a laser (2) held by a post (3). The common reference plane of this optical system is a rigid substrate (5). The extremity of the optical fibre is held by a metallic holder. The holder has a tube (9) with control orifice (10) with a diameter just sufficient to insert the optical fibre and a metallic rod or film to immobilise the fibre. The dimension of the tube has an axis in common with the laser. The tube is relatively long to hold the optical fibre. A lens can be used by glass, quartz, sapphire etc. and is of several micrometers in diameter. The tube has at least two wings or legs (11,12) which are directed onto the common substrate and attach to the tube. The monolithic holder (8) has soldered parts (13,14) on a first extremity. The wings constitute a single surface and curve inwards towards the holder. The surface (17) is metallic and by adjustment of the points (18) on this surface it is possible to adjust the fibre for optical reception of the laser. USE - Optical alignment of optical fibre with laser.