Breit Abstimmbarer Laser mit Querverbundenem Ringresonator

Details

Veröffentlichungs-Nr.

EP3499657

Aktenzeichen

EP17306757

Anmeldetag

12. Dezember 2017

Veröffentlichung

17. Juni 2020

Erteilung

17. Juni 2020

Rechtsraum

EP

IPC

H01S5/14// H01S5/06H01S5/10

Abstract

The present invention relates to a reflecting filter (100), for widely tunable laser, adapted to filter and reflect an incoming optical signal (IS) so as to select a predetermined wavelength λ, the reflecting filter (100), comprising:- a bidirectional port (1);- an output (2);- a first, a second and a third codirectional couplers (CDC1, CDC2, CDC3); and- a first and second ring resonator (RR1, RR2) adapted to filter optical signals at the predetermined wavelength λ;wherein a incoming signal (IS) is filtered at predetermined wavelength λ by the ring resonators (RR1, RR2) and reflected, the ring resonators (RR1, RR2) being cross-connected so to achieve a better suppression of undesirable resonances over a wide wavelength range. Consequently a widely wavelength tunable laser comprising such a reflecting filter (100) will have a better side-mode suppression ratio - SMSR.

Anmelder

Firma

Nokia Solutions and Networks Oy

Land

🇫🇮 Finnland

Fachgebiete