Practical implementation of a highly sensitive receiver using an erbium-doped fiber preamplifier

Gabla, P. M.; Leclerc, Éric; Cœurjolly, C.

doi:10.1109/68.84466

Cited by 8 publications

(2 citation statements)

References 7 publications

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“…To simplify the analysis, the TDF function can be written as (3) where is the gate width. The TDF filtered field becomes a cyclostationary process .…”

Section: B Noise Analysismentioning

confidence: 99%

“…Another approach to improve detection sensitivity is to employ a fiber preamplifier. This technique has been successfully demonstrated in direct detection systems [3]- [6], but not in coherent detection systems. Due to the existence of amplified spontaneous emission (ASE) inside the amplifier, the sensitivity of coherent detection is degraded when the system operates close to the shot noise limited condition [7].…”

Section: Introductionmentioning

confidence: 99%

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Reducing ASE Effect in Coherent Detection by Employing Double-Pass Fiber Preamplifier and Time-Domain Filter

Chen

Mark

Burnham

et al. 2009

IEEE J. Quantum Electron.

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Abstract-We report on a novel fiber based coherent detection system employing a double-pass fiber preamplifier, a spectral bandpass filter, and a time-domain filter. The time-domain filter, a synchronous time gate, reduces the in-band amplified spontaneous emission (ASE) beat noise, which cannot be achieved by the spectral bandpass filter alone. The double-pass fiber amplifier further reduces the out-band ASE by about 20 dB with a fiber Bragg grating (FBG) at the end of the fiber amplifier. In preliminary experiments with a 100 GHz bandpass filter, no degradation is observed from the optically preamplified coherent detection compared to pure coherent detection. With a 10 ns pulse width, 500 kHz repetition rate, and 10 pW average input power, about 2 dB and 1 dB signal-to-noise ratio (SNR) improvements are achieved when 5% and 50% time gating duty cycles are used, respectively.

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“…To simplify the analysis, the TDF function can be written as (3) where is the gate width. The TDF filtered field becomes a cyclostationary process .…”

Section: B Noise Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Reducing ASE Effect in Coherent Detection by Employing Double-Pass Fiber Preamplifier and Time-Domain Filter

Chen

Mark

Burnham

et al. 2009

IEEE J. Quantum Electron.

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Optical Amplifiers

Willner

1999

Wiley Encyclopedia of Electrical and Electronics Engineering

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The sections in this article are Historical Perspective Basic Concepts Photoabsorption and Photoemission SNR Background in Generic Optical Systems Amplifier Gain and Noise Semiconductor Amplifiers Erbium‐doped Fiber Amplifiers Multiple‐Wavelength Systems Applications to Solitons Future Trends

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System Implementations of Amplifiers

Becker¹,

Olsson²

1999

Erbium-Doped Fiber Amplifiers

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Practical implementation of a highly sensitive receiver using an erbium-doped fiber preamplifier

Cited by 8 publications

References 7 publications

Reducing ASE Effect in Coherent Detection by Employing Double-Pass Fiber Preamplifier and Time-Domain Filter

Reducing ASE Effect in Coherent Detection by Employing Double-Pass Fiber Preamplifier and Time-Domain Filter

Optical Amplifiers

System Implementations of Amplifiers

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