OPTICAL SIGNAL EMISSION SYSTEM

摘要

Optical signal emission system comprising a passive optical chip (2) provided on the top surface with a first wave guide (3), and a wide-strip laser diode (1) arranged on the edge of the passive optical chip (2), the passive optical chip (2) being provided, on the top surface, with a reflecting structure (5) at the wavelength of the wide-strip laser diode (1) and with an active or non-linear thin layer portion (8) powered by said laser diode (1) and covering a part (7) of the first wave guide (3), the first wave guide (3) being linked by its input end to the laser diode (1), passing through the reflecting structure (5), and comprising a transition (4) between a wide input of the first wave guide arranged at the output of the laser diode (1) and a narrow portion of the first wave guide (3) passing through the reflecting structure (5), the passive optical chip (2) being provided on the top surface with a second wave guide (10), a first coupler (13) formed by two first portions (14, 15) of the first wave guide (3) not covered by the thin layer portion (8) and situated on either side of the thin layer portion (8) along the optical path, and a second coupler (16) formed by two second portions (17, 18), respectively of the first and second wave guides (3, 10), not covered by the thin layer portion (8).