Amplifiers – Parametric amplifiers – Semiconductor type
Patent
1986-02-26
1989-03-14
Tarcza, Thomas H.
Amplifiers
Parametric amplifiers
Semiconductor type
372 25, 372 30, 357 17, H01S 3103
Patent
active
048127760
ABSTRACT:
A bistable laser for realizing a waveshaping function, having a drive current which during normalcy biases the bistable laser to the middle point of the hysteresis region thereof. When input light exceeds a threshold level, the bistable laser is switched into the lasing state, and even when the input light thereafter disappears, the laser emits light of fixed intensity. A detector having detected this lasing state decreases the drive current temporarily after a predetermined period of time, to switch the bistable laser into the non-lasing state, whereby not only the amplification but also the shaping of an optical pulse signal is achieved.
REFERENCES:
patent: 3585520 (1971-06-01), Yanai et al.
patent: 3723903 (1973-03-01), Paoli et al.
patent: 3815045 (1974-06-01), Ito
patent: 3887876 (1975-06-01), Zeidler
patent: 4038610 (1977-07-01), Nishizawa et al.
patent: 4065729 (1977-12-01), Gover et al.
patent: 4196396 (1980-04-01), Smith
patent: 4484144 (1984-11-01), Nakagome et al.
patent: 4518934 (1985-05-01), Venkatesan
patent: 4562569 (1985-12-01), Yariv et al.
Harder et al., "Bistability and Pulsations in Semiconductor Lasers with Inhomogeneous Current Injection", 9/82, pp. 1351-1361, Journal of Quantum Electronics.
Hellner Mark
Hitachi , Ltd.
Tarcza Thomas H.
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