Pirelli Cavi S.p.a.

Giovanni Delrosso

Stefano Vanoli

Massimo Armiraglio

The optical amplifier (1) comprises optical components (2-13), connection light guide sections (14) between the optical components, and electronic and electrical power supply and control components (41,42). It is characterized in that it comprises:

Compact-size optical amplifier having separate functions

An optical amplifier (1) includes optical components including at least one optical amplifying active fiber and a pump laser supplying pumping power to the amplifying fiber through an optical coupler, light guide sections (14) for connecting the optical components, and electronic and electrical power supply and control components (41,42). The amplifier is characterized in that it includes: an optical unit (15) including all the optical components (2-13) and the connection light guide sections (14), an electronic unit (16) including all the electronic and electrical components (41,42) and being separate from the optical unit (15), a plate between the optical unit and the electronic unit; and electrical interconnections (43,44) between the optical unit (15) and the electronic unit (16). The clear separation of the electronic components (41,42) from the optical components (2-13) affords size reductions and rationalization of the amplifier (1) implementation procedure.

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 sources (6,9) are accommodated on a main frame (15).

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Caltignaga, Italy

Giovanni Delrosso