Drawing on over 40 years of experience in the design and manufacture of equipment for the diverse world of materials processing, Logitech has developed a fully integrated machine-technology package for the processing of Electro-Optic materials such as Lithium Niobate, Lithium Tantalate, Bismuth Silicon Oxide, barium Titanate to precise tolerances with scratch-free surface finishes.

Our flexible systems will integrate into your total fabrication programme, offering a quick and reliable route to success in the final preparation of your electro-optics material samples.

A fabrication process for a typical electro-optic device such as an optical phase modulator breaks down into 7 stages:

• Manufacturing and opientation of the crystal.
• Slicing the wafer from the crystal boule with an annular diamond saw.
• Smooth lapping of both wafer faces and polishing of one or both faces to defect-free quality (sun nm Ra) .
• Cutting of substrates from the polished wafer.
• Forming of optical guide channels on the polished surface of the substrate e.g. by diffusion of a Ti strip.
• Bonding of diffused plates to form a stack between end wasters, and polishing of ends flat and square to the main faces with minimal edge roll-off and edge chipping.
• Evaporation of further electrode strips, mounting of device plate onto header and connection of optical fibres and electrical leads.

Results

The sketch below shows the consistently high quality of results obtainable using Logitech equipment to process electro-optic materials:

Typical Electro-Optic Device Substrate : General squareness and parallelism to about 3 minutes of arc

 

For more information on our electro-optic equipment and what Logitech technology will do for your business, call us on +44 (0)1389 875444 or complete our contact form.