Patent · US Active

Method of producing a laser diode bar and laser diode bar

US11128106B2 · kind B2 · utility

1Cited by

2References

9Claims

0Family size

Assignee

Osram OLED GMBH · DE

Inventors

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

Key dates

Filing date	Jun 13, 2017
Grant date	Sep 21, 2021
Priority date	—
Expiry date	Feb 15, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH01S2301/176
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A method of producing a laser diode bar includes producing a plurality of emitters arranged side by side, emitters each including a semiconductor layer sequence having an active layer that generates laser radiation, a p-contact on a first main surface of the laser diode bar and an n-contact on a second main surface of the laser diode bar opposite the first main surface, testing at least one optical and/or electrical property of the emitters, wherein emitters in which the optical and/or electrical property lies within a predetermined setpoint range are assigned to a group of first emitters, and emitters in which the at least one optical and/or electrical property lies outside the predetermined setpoint range are assigned to a group of second emitters, and electrically contacting first emitters, wherein second emitters are not electrically contacted so that they are not supplied with current during operation of the laser diode bar.

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