Patent ID: 6836582
Filing Date: 2004-12-28
Classification: H04Q

Abstract:
An optical switching device (100) including:an optical switching matrix (1) including: input ports (A, B), output ports (a, b), switching means (3, 3â€²) between said input ports (A, B) and said output ports (a, b), and control means (2) for said switching matrix (1), wherein said switching means (3, 3â€²) include a space switch (6) having inputs coupled to respective input ports (A, B) and outputs coupled to spectrum selector stages (7), the states of the space switch (6) and the spectrum selector stages (7) thus defining optical paths between said inpul ports (A, B) and said output ports (a, b) so that incoming data at one of said input ports (A, B) can be selectively switched to any of said output ports (a, b),said optical switching device including at least one configuration table (14) in which is written data identifying authorized optical paths ensuring a transmission error rate lower than a predetermined value and said control means (2) cooperating with said configuration table (14) to authorize only states of the space switch (6) and the spectrum selector stages (7) corresponding to authorized optical paths.