Optical amplifying device

Optical device comprising a laser device and an electrical feeding circuit, wherein an optical signal is incident towards a photo diode to provide an optical output signal as one single beam that comprises only one mode and wherein the laser device comprises one single laser device with a number of active regions electrically connected in series within an optical cavity;

• the laser device has a cavity so formed that a standing wave pattern is created in the cavity;
• electrical contact regions are disposed between the active regions;
• the active regions and electrical contact regions are substantially perpendicular to a direction of propagation of the vertical standing wave pattern;
• the active regions are arranged in planes corresponding maxima in an electro-optical field;
• and the electrical contact regions are arranged in planes corresponding to minima in the electro-optical field.

A method of communicating signals between two devices comprising the step of using an optical amplifying arrangement for an optical interconnection between the devices, the arrangement comprising a laser device with a number of active regions which are electrically connected in series within one optical cavity;

• the laser device has a cavity so formed that a standing wave pattern is created in the cavity;
• an optical signal is obtained from the cavity generated in one single beam that comprises only one mode;
• electrical contact regions are disposed between the active regions;
• the active regions and electrical contact regions are substantially perpendicular to a direction of propagation of the vertical standing wave pattern;
• the active regions are arranged in planes corresponding maxima in an electro-optical field;
• and the electrical contact regions are arranged in planes corresponding to minima in the electro-optical field.

A method of amplifying an optical signal comprising the step of using an optical amplifying arrangement comprising a laser device with a number of active regions which are electrically connected in series within one optical cavity and a photo diode to provide at least one amplified replica of the optical signal incident to the photo diode;

• wherein the laser device has a cavity so formed that a standing wave pattern is created in the cavity;
• the amplified optical signal is obtained from the cavity generated in one single beam that comprises only one mode;
• electrical contact regions are disposed between the active regions;
• the active regions and electrical contact regions are substantially perpendicular to a direction of propagation of the vertical standing wave pattern;
• the active regions are arranged in planes corresponding maxima in an electro-optical field;
• and the electrical contact regions are arranged in planes corresponding to minima in the electro-optical field.