Patent · US Active

Laser assembly and operating method

US10608413B2 · kind B2 · utility

0Cited by

4References

17Claims

0Family size

Assignee

Osram OLED GMBH · DE

Inventors

Sven Gerhard · Alteglofsheim, DE
Clemens Vierheilig · Tegernheim, DE
Andreas Löffler · Neutraubling, DE

Key dates

Filing date	Apr 27, 2017
Grant date	Mar 31, 2020
Priority date	—
Expiry date	Apr 27, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH01S5/4031
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The invention relates to a laser assembly, wherein, in one embodiment, the laser assembly (1) comprises a plurality of laser groups (2) each having at least one semiconductor laser (20). Furthermore, the laser assembly (1) contains a plurality of photothyristors (3), each laser group (2) being clearly assigned one of the photothyristors (3). The photothyristors (3) are each connected electrically in series with the associated laser group (2) and/or integrated in the associated laser group (2). Furthermore, the photothyristors (3) are each optically coupled to the associated laser group (2). A dark breakdown voltage (Ut) of each photothyristor (3) lies above an intended operating voltage (Ub) of the associated laser group (2).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.