A compact-size optical amplifier
CA 2102017 C · Owner: Pirelli Cavi E Sistemi S.P.A. · Inventors: Delrosso, Giovanni; Armiraglio, Massimo; Vanoli, Stefano
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The amplifier (1) comprises two active light guide sections (7,10) two dichroic couplers (5, 8), two pump laser sources (6,8) acting on the active light guide sections (7, 10) through the dichroic couplers (5, 8), two directional couplers (3, 11) associated with two respective optical meters (4, 12), and light guide sections (14) for interconnecting the various components. The dichroic (5 8) and, directional (3,11) couplers. and the optical meters (4 12), are, pre-assembled onto an auxiliary frame (21); the active (7 10) and, connection (14) light guide sections are wound on two drums (30) provided on an organizer frame (28). The auxiliary frame (21) organizer frame (28), and pump laser …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed October 29, 1993 and granted August 3, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 29, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 29, 2015.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.