Relative-intensity-noise cancellation in bandpass external-modulation links

Relative-intensity-noise cancellation in bandpass external-modulation links

A new method of optically summing time-shifted complementary signals to cancel relative intensity noise (RIN) in narrow-band external-modulation optical links is proposed and demonstrated. Differential-link noise figure and dynamic-range improvement are compared to the conventional low-biased modula...

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Veröffentlicht in:IEEE transactions on microwave theory and techniques 1998-12, Vol.46 (12), p.2083-2091
1. Verfasser: Helkey, R.
Format: Artikel
Sprache:eng
Schlagworte:
Delay
Intensity modulation
Laser noise
Noise cancellation
Optical fiber polarization
Optical interferometry
Optical modulation
Optical noise
Semiconductor device noise
Semiconductor lasers
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Zusammenfassung:A new method of optically summing time-shifted complementary signals to cancel relative intensity noise (RIN) in narrow-band external-modulation optical links is proposed and demonstrated. Differential-link noise figure and dynamic-range improvement are compared to the conventional low-biased modulator configuration for suboctave applications. RIN suppression of 12 dB at 4 GHz is demonstrated.
ISSN:0018-9480
1557-9670
DOI:10.1109/22.739286