Journal ArticleDOI
Spectrum-sliced fiber amplifier light source for multichannel WDM applications
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TLDR
In this article, a potentially inexpensive light source for multichannel WDM applications is proposed, where the high-power amplified spontaneous emission (ASE) from an erbium-doped fiber amplifier (EDFA), which is already in the singlemode fiber, can be efficiently divided into many channels by using an integrated optic wavelength division multiplexing (WDM) demultiplexer.Abstract:
A potentially inexpensive light source for multichannel WDM applications is proposed The high-power amplified spontaneous emission (ASE) from an erbium-doped fiber amplifier (EDFA), which is already in the single-mode fiber, can be efficiently divided into many channels by using an integrated optic wavelength-division-multiplexing (WDM) demultiplexer This spectrum-sliced ASE can be used as light sources for WDM systems in place of several wavelength-selected DFB lasers To demonstrate the principle, the 40-nm-wide ASE spectrum of an EDFA was sliced using a narrow optical filter (3-dB bandwidth: 13 nm), and the resulting source was used for the transmission of up to 17 Gb/s of data The problem of spontaneous-spontaneous beat noise in these sources is dealt with It is estimated that the total capacity would be about 40 Gb/s, realistically, since the channel spacing should be at least three times the optical bandwidth of each channel to avoid crosstalk >read more
Citations
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Journal ArticleDOI
Enabling Technologies for Future Scalable and Flexible WDM-PON and WDM/TDM-PON Systems
TL;DR: Recent state-of-the-art research on the enabling technologies needed to realize future WDM-PON and WDM/TDM-Pon systems are reviewed, and future directions toward practical PON systems are discussed.
Journal ArticleDOI
Wavelength-division-multiplexed passive optical network based on spectrum-slicing techniques
TL;DR: In this paper, the authors proposed and demonstrated a new wavelength division multiplexed (WDM) passive optical network (PON) architecture that uses N/spl times/N waveguide grating routers (WGRs) in the remote node and central office for simultaneous multiplexing and demultiplexing of N-1 channels in each direction.
Journal ArticleDOI
Noise suppression of incoherent light using a gain-saturated SOA: implications for spectrum-sliced WDM systems
TL;DR: In this paper, an experimental and numerical study of SOA-based noise suppression and its relevance to high-channel-density spectrum-sliced wavelength-division-multiplexed systems is presented.
Journal ArticleDOI
Wavelength-division multiplexing with femtosecond pulses
TL;DR: W wavelength-division multiplexing with a single broadband femtosecond source is demonstrated by slicing the 3.7-THz spectral bandwidth of 85-fs laser pulses into 16 channels that are modulated individually.
Journal ArticleDOI
Continuous-wave silica-based erbium-doped fibre lasers
TL;DR: This review paper on erbium-doped fibre laser (EDFL) covers a broad range of designs and applications related to the field of optical fibre telecommunication and offers some insights concerning future research trends.
References
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Lightwave systems with optical amplifiers
TL;DR: In this article, the noise and bit-error-rate characteristics of fiber-optic communication systems using semiconductor laser amplifiers are investigated theoretically and experimentally, and the dependence of system performance on amplifier characteristics such as optical bandwidth, noise figure, gain, etc., is shown.
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Receiver design for digital fiber optic communication systems, II
TL;DR: In this article, it is shown that a proper front-end design incorporates a high-impedance preamplifier which tends to integrate the detector output, and this must be followed by proper equalization in the later stages of the linear channel.
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Integrated optics N*N multiplexer on silicon
TL;DR: In this paper, the authors report the measured performance of an integrated N*N multiplexer fabricated using SiO/sub 2/Si waveguides, and they show that the insertion loss for N=7 was typically lower than 2.5 dB, and crosstalk was less than -25 dB.
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Propagation of signal and noise in concatenated erbium-doped fiber optical amplifiers
TL;DR: In this article, the authors analyzed the signal propagation and noise accumulation in lightwave systems using saturated optical amplifiers as repeaters and showed that a reach beyond 10000 km is possible with a 1.55-mu m system in the absence of fiber nonlinearities.