公开(公告)号：US20230121874A1

公开(公告)日：2023-04-20

申请号：US17519411

申请日：2021-11-04

Applicant: Mellanox Technologies, Ltd.

Inventor： Paraskevas Bakopoulos ,  Ioannis Giannis Patronas ,  Dimitris Kalavrouziotis ,  Juan Jose Vegas Olmos ,  Elad Mentovich ,  Nikos Argyris

IPC: G02B6/42 ,  G02B6/43

Abstract: The disclosure addresses the problem of increased optical insertion losses in integrated optical switches. It enables the implementation of an array of optical amplifiers, typically with low/moderate gain, to compensate for optical insertion losses in the integrated switches. The amplifier is based on a doped optical fiber which is optically pumped by a pump laser. The integrated optical switch includes a transposer that facilitates connectivity between a set of fibers and a photonic chip through an optical mode conversion. An all passive circuitry is built in a doped fiber amplifier, WDM couplers combine/separate the signals from the pump, and splitters allow sharing of a single pump by multiple amplifiers. In addition, switch pigtails are implemented with the doped fiber.