Hybrid optical amplifier coupling Raman fiber amplifier and semiconductor optical amplifier
OwnerDonghan Leeinventor
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Abstract
The present invention discloses a hybrid optical amplifier coupling a Raman fiber amplifier and a semiconductor optical amplifier, comprising: a laser diode generating and radiating a laser light for a Raman optical amplification; a wavelength division multiplexer passing an incident signal light and radiating a laser light radiated from the laser diode in a reverse direction of the incident signal light; and a gain clamped semiconductor optical amplifier amplifying an optical signal light radiated from the wavelength division multiplexer.
Claims36
A hybrid optical amplifier coupling a Raman fiber amplifier and a semiconductor optical amplifier, comprising:
- a laser diode generating and radiating a laser light for a Raman optical amplification;
- a wavelength division multiplexer passing an incident signal light and radiating the laser light radiated from the laser diode in a reverse direction of the incident signal light;
- and
- a gain clamped semiconductor optical amplifier amplifying an optical signal radiated from the wavelength division multiplexer;
- a dispersion compensated fiber coupled to at least one of a rear portion of the wavelength division multiplexer and a front portion of the wavelength division multiplexer to compensate an accumulated chromatic dispersion of an optical signal;
- and
- a Raman amplifying means coupled to at least one of a rear portion of the dispersion compensated fiber and a front portion of the dispersion compensated fiber.
A hybrid optical amplifier coupling a Raman fiber amplifier and a semiconductor optical amplifier comprising,
- a laser diode generating and radiating a laser light for a Raman optical amplification;
- a wavelength division multiplexer (WDM) passing an incident signal light and radiating the laser light radiated from the laser diode in a reverse direction of the incident signal light;
- a gain clamped semiconductor optical amplifier amplifying an optical signal radiated from the WDM;
- a dispersion compensated fiber (DCF) coupled to a rear portion of the wavelength division multiplexer to compensate an accumulated chromatic dispersion of an optical signal;
- a Raman amplifying means coupled to at least one of a front portion and a rear portion of the dispersion compensated fiber;
- and
- a Raman amplifying means arranged at a rear portion of the gain clamped semiconductor optical amplifier.
A hybrid optical amplifier coupling a Raman fiber amplifier and a semiconductor optical amplifier comprising,
- a laser diode generating and radiating a laser light for a Raman optical amplification;
- a wavelength division multiplexer (WDM) passing an incident signal light and radiating the laser light radiated from the laser diode in a reverse direction of the incident signal light;
- a gain clamped semiconductor optical amplifier amplifying an optical signal radiated from the WDM;
- and
- a gain flattening filter arranged at least one of a front portion and a rear portion of the gain clamped semiconductor optical amplifier to further flatten the gain spectrum.
A hybrid optical amplifier coupling a Raman fiber amplifier and a semiconductor optical amplifier, comprising:
- a laser diode generating and radiating a laser light for a Raman optical amplification;
- a wavelength division multiplexer passing an incident signal light and radiating the laser light radiated from the laser diode in a reverse direction of the incident signal light;
- a wavelength band divider coupling a plurality of the gain clamped semiconductor optical amplifier in parallel to perform an amplification according to different wavelength bands;
- a plurality of gain clamped semiconductor optical amplifiers of different gain bands amplifying an optical signal radiated from the wavelength division multiplexer;
- and
- a wavelength band combiner coupling the signals amplified at each gain clamped semiconductor optical amplifier into one optical fiber.
A hybrid optical amplifier coupling a Raman fiber amplifier and a semiconductor optical amplifier, comprising:
- a laser diode chip generating and radiating a laser light for a Raman optical amplification;
- a wavelength division multiplexer passing an incident signal light and radiating the laser light radiated from the laser diode in a reverse direction of the incident signal light;
- and
- a semiconductor optical amplification chip directly coupled without using an optical fiber to amplify an optical radiated from the wavelength division multiplexer, wherein the laser diode chip, the wavelength division multiplexer and the semiconductor optical amplification chip are packaged into one.
Dependencies are inferred from the claim text.