Patent · US Active

Laser source with reduced linewidth

US9711940B2 · kind B2 · utility

0Cited by

5References

11Claims

0Family size

Assignee

THALES · FR

Inventors

Guang-Hua Duan · Sceaux, FR
Frédéric VAN DIJK · Palaiseau, FR
Gaël Kervella · Antony, FR

Key dates

Filing date	Dec 12, 2014
Grant date	Jul 18, 2017
Priority date	—
Expiry date	Dec 12, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH01S5/4087
WIPO fieldOptics
WIPO sectorInstruments

Abstract

In the field of narrow linewidth laser sources and a laser device that comprises a laser source and a waveguide of determined refractive index with which it is coupled, a waveguide is single-mode and includes at least four reflectors in the form of trenches etched into the waveguide and irregularly distributed along the waveguide, the distance separating two neighbouring reflectors being above 1 μm, and the waveguide and the laser source have respective lengths such that the length of waveguide over which the reflectors are located is greater than the length of the laser source itself.

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