Global Patent Index - EP 1449285 A2

EP 1449285 A2 20040825 - OPTICAL MICROWAVE SOURCE

Title (en)

OPTICAL MICROWAVE SOURCE

Title (de)

OPTISCHE MIKROWELLENQUELLE

Title (fr)

SOURCE DE MICRO-ONDES OPTIQUE

Publication

EP 1449285 A2 20040825 (DE)

Application

EP 02798257 A 20021129

Priority

  • DE 0204458 W 20021129
  • DE 10160502 A 20011130

Abstract (en)

[origin: WO03049242A2] The aim of the invention is the disclosure of a simple, tuned monolithic integrated component for the generation of optical microwaves in the frequency range of from 0.5 GHz to the THz range. Said aim is achieved by means of an optical microwave source, embodied as a multi-section semiconductor laser, the sections of are embodied such as to be independently electrically controlled, with a single mode DFB laser (1), driven above the laser threshold and at least one monolithic integrated (external) cavity, comprising a passive phase control section (2) and an active section (3). The multisection laser is defined by two facets, of which at least one has a reflectivity of > 0. Passive (2) and active (3) sections are connected to the DFB section (1) by means of a common waveguide (WL), the active sections (3) comprising means for amplification and the passive sections (2) comprising means for changing the phase position of waves returning into the multisection semiconductor laser.

IPC 1-7

H01S 5/00

IPC 8 full level

G02F 2/02 (2006.01); H01S 5/026 (2006.01); H01S 5/0625 (2006.01); H01S 5/14 (2006.01); H01S 5/062 (2006.01)

CPC (source: EP KR US)

H01S 5/06258 (2013.01 - EP KR US); H01S 5/12 (2013.01 - KR); H01S 5/32 (2013.01 - KR); H01S 5/026 (2013.01 - EP KR US); H01S 5/0623 (2013.01 - EP KR US); H01S 5/50 (2013.01 - EP KR US)

Citation (search report)

See references of WO 03049242A2

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

DOCDB simple family (publication)

WO 03049242 A2 20030612; WO 03049242 A3 20040311; AU 2002363828 A1 20030617; AU 2002363828 A8 20030617; CA 2468762 A1 20030612; DE 10160502 A1 20030612; DE 10160502 B4 20050127; EP 1449285 A2 20040825; JP 2005512136 A 20050428; KR 20040070347 A 20040807; US 2004258125 A1 20041223; US 2005020283 A1 20050127; US 7283573 B2 20071016; US 7369863 B2 20080506

DOCDB simple family (application)

DE 0204458 W 20021129; AU 2002363828 A 20021129; CA 2468762 A 20021129; DE 10160502 A 20011130; EP 02798257 A 20021129; JP 2003550326 A 20021129; KR 20047006501 A 20021129; US 49593704 A 20040518; US 49695604 A 20040527