NEWS
Tags: 

VI Systems acquires exclusive US patent rights

VI Systems, a provider of ultra-high speed components for data communications, has acquired an exclusive license to the US patent 8,472,496 – Optoelectronic Device and Method of Making Same – for applications in optical data communications, sensing, and illumination using vertical cavity light–emitting diode structures.

The patent addresses the possibility of fabrication of surface–emitting lasers and light–emitting diodes in any materials system by attaching a dielectric cavity layer, confined by multilayer dielectric distributed Bragg reflectors (DBRs) on both sides of the gain medium.

The concept enables the trapping and amplification of light, even the cavity layer itself remains passive. This approach eliminates the need in lattice–matched high conductivity all–semiconductor DBRs and allows easy integration of the device to photonic crystals, subwavelength gratings, waveguides, offers an option of high temperature stability of the wavelengths for uncooled DWDM applications and provides multiple further advantages.

Twitter icon
Facebook icon
Google icon
StumbleUpon icon
Digg icon
LinkedIn icon
Reddit icon
e-mail icon
Feature

Six months after it became mandatory for copper and fibre cables supplied to EU/EEA member states to comply with the Construction Product Regulation and carry CE marking, Keely Portway asks what, if any, effect this has had on cable suppliers

Feature

To continue growing data traffic, optical scientists are tackling tough questions about nonlinear effects in optical fibre, discovers Andy Extance 

Feature

January of this year saw Jerry Rawls step down as chief executive of Finisar, a company he had grown from obscurity to worldwide success. He talks to Rebecca Pool about building his empire, the firm’s new CEO and a future that could include Oclaro*