Wellenlängenauswahlblock für einen Optischen Verteilungsblock mit mehreren Anschlüssen

Details

Veröffentlichungs-Nr.

EP4712372

Anmeldetag

12. September 2024

Veröffentlichung

18. März 2026

Rechtsraum

EP

IPC

H04J14/02, H04Q11/00(NEC CORP et al.)

Abstract

The invention relates to a wavelength selection block (WSB-2) for a multi-port optical distribution block (PDB-2). The wavelength selection block (WSB-2) comprises: i) an optical input (INP) for receiving an optical fibre (1) carrying a multi-wavelength optical signal (λA) comprising a first number (K) of individual wavelength optical signals (λ1..λK); and ii) a second number (Y) of optical outputs (OUTP-1..OUTP-Y). The wavelength selection block (WSB-2) comprises four consecutive stages (S1..S4). In a first stage the multi-wavelength optical signal (λA) is split into consecutive individual wavelength optical signals (λ1..λK). In a second stage (S2) each individual wavelength optical signal (λ1..λK) is split into a respective group (GR-1..GR-K) of copies of the respective individual wave-length optical signal (λ1..λK), the number of copies equalling the multiplication factor (Y). In a third stage (S3) each copy of each consecutive group (GR-1..GR-K) of copies is individually gated for selectively passing or blocking the respective individual wavelength optical signal (λ1..λK) so as to obtain a respective gated individual wavelength optical signal (λ1g..λKg). In a fourth stage (S4) each consecutive gated individual wavelength optical signal (λ1g..λg) from each consecutive group (GR-1..GR-K) is combined so as to obtain a respective gated multi-wavelength optical signal (λAg), wherein each respective gated multi-wave-length optical signal (λAg) is coupled with a respective optical output (OUTP-1..OUTP-Y). The invention also relates to an optical distribution block (PDB-2) comprising a further number (N) of such wavelength selection blocks (WSB-2).

Anmelder

Firma

Astrape B.V.

Land

🇳🇱 Niederlande