Patent · US Active

Tunable laser device

US10164406B2 · kind B2 · utility

1Cited by

2References

16Claims

0Family size

Assignee

Alcatel Lucent · FR

Inventors

Nicolas Chimot · Marcoussis, FR
Helene Debregeas-Sillard · Marcoussis, FR

Key dates

Filing date	Feb 4, 2015
Grant date	Dec 25, 2018
Priority date	—
Expiry date	Feb 4, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH01S5/124
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A tunable laser device comprises a multi-section distributed feedback (DFB) laser having a first Bragg section including a waveguide and a Bragg grating, a second Bragg section comprising a waveguide and a Bragg grating, and a phase section being longitudinally located between the first Bragg section and the second Bragg section. The phase section is made of a passive material, and each Bragg section has a first longitudinal end joining the phase section and a second longitudinal end opposed to the phase section. The Bragg grating of at least one Bragg section has a grating coupling coefficient which decreases from the first longitudinal end to the second longitudinal end of the at least one Bragg section.

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