Optical parametric amplifier and method for implementing same

Details Optical parametric amplifier and method for implementing same Optical parametric amplifier and method for implementing same

2005-11-01

2005-11-01

Lee, John D. (Department: 2874)

Optical: systems and elements

Optical frequency converter

Parametric oscillator

Reexamination Certificate

active

06961170

ABSTRACT:
An apparatus and method for optically, parametrically amplifying a small-signal. A small-signal optical parametric amplifier (OPA) includes a narrowband pump source, means for suppressing stimulated Brillouin scattering (SBS) (e.g., a phase modulator), coupled to the narrowband pump source, a booster amplifier, coupled to the SBS-suppressed pump output, a bandpass filter, coupled to the booster amplifier, a low-loss coupler, coupled to the bandpass filter and the receiving end of a small-signal transmission line, and means for performing non-linear mixing, coupled to the injection coupler. The narrowband pump source produces a pump output. The booster amplifier amplifies the SBS-suppressed pump output to a sufficient power level for achieving parametric gain. The bandpass filter bandpass filters the amplified, SBS-suppressed pump output and suppresses amplified spontaneous emission (ASE) in the pump output. The low-loss coupler couples the filtered, amplified, SBS-suppressed pump output with a small-signal received from the small-signal transmission line. The non-linear mixing means parametrically amplifies the small-signal with the filtered, amplified, SBS-suppressed pump output to produce an amplified output signal.

REFERENCES:
patent: 6384963 (2002-05-01), Ackerman et al.
patent: 2003/0067952 (2003-04-01), Tsukiji et al.
patent: 2004/0257641 (2004-12-01), Legrand et al.

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