Optical: systems and elements – Optical amplifier – Particular active medium
Patent
1993-01-26
1994-02-01
Hellner, Mark
Optical: systems and elements
Optical amplifier
Particular active medium
372 45, 257431, H01S 325, H01S 319, C02F 300
Patent
active
052836886
ABSTRACT:
The amplifier according to the invention comprises a shallow, narrow well (P1) in which amplification takes place and a deep, wide well (P2) for collecting the carriers at the end of excitation, said well being emptied by the laser effect.
Application to optical telecommunications.
REFERENCES:
patent: 4745452 (1988-05-01), Sollner
patent: 4941025 (1990-07-01), Tabatabaie
patent: 5151818 (1992-09-01), Thijs et al.
Hara et al, "Assymmetric dual quantam well laser-wavelength switching controlled by injection current", Appl. Phys. Lett 55 (12) Sep. 1989.
Ikeda et al, "Evidence of the wavelength switching caused by a blocked carrier transport in an asymmetric dual quantum well laser", Appl. Physics Letters, Jul. 1991.
France Telecom Etablissement (Autonome de Droit Public)
Hellner Mark
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