公开(公告)号：FR2837578A3

公开(公告)日：2003-09-26

申请号：FR0203441

申请日：2002-03-20

Applicant: MEMSCAP

Inventor： KATILA PEKKA ,  KHALIL DIAA ,  SAADANY BASSAM ,  BASHIR AYMEN

IPC: G02B6/26 ,  G02B26/02 ,  B81B7/02 ,  H04B10/12

Abstract: The attenuator is designed to be connected to input and output optical fibres (8,9), respectively, and comprises an integrated optical component (2) which includes input and output waveguides (11,12) to which the input and output optical fibres (8,9) are connected by the intermediary of interface ports (6,7), respectively, a micro-electromechanical component (3) including an input waveguide (11) for transmitting all or a part of it to the output waveguide (12), and a collimator (4) with lenses (15,16,17). The integrated optical component (2) also comprises a coupling device in the form of two proximal sections (24,26) of waveguides which allows to direct a fraction of the signal passing in the output waveguide (12) to a detector (30) mounted on or in the microelectromechanical component (3). The detector is associated with a system for controlling the displacement of the mobile structure by an actuator (23). The rate of coupling between the output waveguide (12) and a supplementary waveguide (25) is about 1-5%. The extremity of the supplementary waveguide (25) ends in a supplementary interface port (19) which is positioned with respect to the detector (30). A matrix of optical attenuators is claimed and is in the form of an association of attenuators wherein the integrated optical components of each attenuator form a part of a global integrated optical component, and the microelectromechanical components of each attenuator form a part of a global microelectromechanical component.