Broadband fiber optical parametric amplifiers

Department of Electrical Engineering , Stanford University, Palo Alto, California, United States
Optics Letters (Impact Factor: 3.29). 04/1996; 21(8):573-5. DOI: 10.1364/OL.21.000573
Source: PubMed


The bandwidth of a single-pump fiber optical parametric amplifier is governed by the even orders of fiber dispersion at the pump wavelength. The amplifier can exhibit gain over a wide wavelength range when operated near the fiber's zero-dispersion wavelength. It can also be used for broadband wavelength conversion,with gain. We have experimentally obtained gain of 10-18 dB as the signal wavelength was tuned over a 35-nm bandwidth near 1560 nm.

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Available from: L.G. Kazovsky, Sep 29, 2015
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    • "The parametric gain coefficient g is given by [1]: g 2 = - Δβ(Δβ/4+γP 0 ), where P 0 is the pump power and Δβ is the linear wave-vector mismatch determined by the waveguide characteristics, i.e., Δβ = β s + β i -2β p , where β s , β i , and β p are respective propagation constants of the signal, the idler and the pump wave. Neglecting the pump depletion, the signal power gain is obtained as [1]: G s (L) = (|E s (L)|/|E s (0)|) 2 = 1 + [γP 0 sinh(gL)/g] 2 , where E s is the signal field, L is the interaction length. For conventional SOI waveguides with D < 0, the signal gain occurs over a very narrow band of few nanometers due to the lack of phase-mismatching. "
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    ABSTRACT: We propose an ultra-broadband optical parametric amplifier (OPA) employing step-structure hybrid plasmonic waveguide with ultra-high nonlinearity. The proposed parametric amplifier possesses a net signal gain of larger than 14 dB and a 3-dB bandwidth of over 200 nm covering C-band, L-band, and S-band.
    Communications and Photonics Conference and Exhibition (ACP), 2010 Asia; 01/2011
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    • "In OPA, the amplification wavelength can be arbitrarily chosen as long as the phase-matching conditions can be fulfilled. OPA can potentially give a gain range of over 200 nm, which is superior to SOA and Raman amplification [12], though its actual performance depends on fiber nonlinearity, pump power, and fiber dispersion. Most importantly, the fiber OPA produces two wavelength regimes: signal and idler bands. "
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    ABSTRACT: We report a high-speed time-multiplexing dual wavelength band swept laser source based on an optical parametric amplifier. A dual-band swept-source optical coherence tomography system is implemented to demonstrate the advantage of a second wavelength band for fast spectroscopic OCT. The innovative time-multiplexing architecture greatly reduces the complexity of the coupling and detecting configuration in comparison with the previous dual-band swept-source setup. We demonstrate the OPAs characteristics as a dual-band generator and applied the source to firstly achieve the spectroscopic OCT around 1550 nm.
    IEEE Journal of Selected Topics in Quantum Electronics 01/2011; 18(99-PP):1 - 1. DOI:10.1109/JSTQE.2011.2167132 · 2.83 Impact Factor
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    • "Distributed parametric amplification (DPA), one of the most promising candidates for the distributed amplification of optical signal in long-haul transmission links, has been studied in recent research [1]. Different from the discrete optical parametric amplifier (OPA) in the specially fabricated highly-nonlinear dispersion-shifted fiber (HNL-DSF) [2]–[6], DPA adopts the widely available dispersion-shifted fiber (DSF) in which the transmission and amplification of the optical signal can be achieved simultaneously. "
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    ABSTRACT: We report, for the first time to our knowledge, an optically powered wavelength-division-multiplexing (WDM) communication system with distributed parametric amplification in the dispersion-shifted fiber. The parametric pump for the amplification of WDM signals also acts as the power supply for the receiver component. The proposed scheme is also a potential candidate for the “last mile” transmission. Successful musical signal transmission has been demonstrated. Additionally, four channels of 10-Gb/s WDM signals are used to get more precise performance evaluation of the system. The power penalties of less than or equal to 1.35 dB at a bit-error rate of $10^{-9}$ are achieved for all WDM channels in the presence of 10-dB parametric gain.
    IEEE Photonics Technology Letters 09/2010; 22(16-22):1232 - 1234. DOI:10.1109/LPT.2010.2052796 · 2.11 Impact Factor
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