Optical Injection-Locking-Based Pump Recovery for Phase-Sensitively Amplified Links

Olsson, Samuel L. I.; Corcoran, Bill; Lundström, Carl; Tipsuwannakul, Ekawit; Sygletos, Stylianos; Ellis, A.D.; Tong, Zhi; Karlsson, Magnus; Andrekson, Peter A.

doi:10.1364/ofc.2012.ow3c.3

Cited by 7 publications

(7 citation statements)

References 4 publications

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“…In this paper we extend the concept presented in [26]. Apart from demonstrating penalty-free operation of a PSA-amplified link, with phase modulated pump, for equivalent link losses of more than 40 dB we also present the first detailed experimental investigation of the operating power limits of the pump recovery system.…”

Section: Introductionmentioning

confidence: 88%

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Injection locking-based pump recovery for phase-sensitive amplified links

et al. 2013

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Abstract:An injection locking-based pump recovery system for phase-sensitive amplified links, capable of handling 40 dB effective span loss, is demonstrated. Measurements with 10 GBd DQPSK signals show penalty-free recovery of a pump wave, phase modulated with two sinusoidal RF-tones at 0.1 GHz and 0.3 GHz, with 64 dB amplification. The operating power limit for the pump recovery system is experimentally investigated and is governed by the noise transfer and phase modulation transfer characteristics of the injection-locked laser. The corresponding link penalties are explained and quantified. This system enables, for the first time, WDM compatible phase-sensitive amplified links over significant lengths. References and links 1. C. M. Caves, "Quantum limits on noise in linear amplifiers," Phys. Rev. D 26, 1817Rev. D 26, -1839Rev. D 26, (1982. 2. E. Desurvire, Erbium-doped Fiber Amplifiers, (John Wiley & Sons, 1994). 3. W. Imajuku, A. Takada, and Y. Yamabayashi, "Low-noise amplification under the 3dB noise figure in high-gain phase-sensitive fibre amplifier," Electron. Lett 35, 1954Lett 35, -1955Lett 35, (1999 J. Richardson, "Detailed characterization of a fiber-optic parametric amplifier in phase-sensitive and phaseinsensitive operation," Opt. Express 18, 4130-4137 (2010). 8. M. Vasilyev, "Distributed phase-sensitive amplification," Opt. Express 13, 7563-7571 (2005). 9. R. Tang, P. Devgan, V. S. Grigoryan, and P. Kumar, "Inline frequency-non-degenerate phase-sensitive fibre parametric amplifier for fibre-optic communication," Electron.

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Section: Introductionmentioning

confidence: 88%

“…The first demonstration of a nontrivial pump recovery system for frequency-nondegenerate PSA-amplified links was presented in [26]. This system enabled the demonstration of an 80 km PSA-amplified transmission link [27], the longest frequency-nondegenerate PSA-amplified link ever reported.…”

Section: Introductionmentioning

confidence: 99%

Injection locking-based pump recovery for phase-sensitive amplified links

et al. 2013

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“…To allow for transmission through a long length of fiber, a pump-recovery system based on an injection-locked laser was developed [9]. The weak CW pump (that also must propagate through the fiber) could be amplified by this recovery-system by up to 63 dB without significant degradation of neither amplitude nor phase.…”

Section: Psa-based Optical Linksmentioning

confidence: 99%

Phase-Sensitive Amplifiers for Optical Links

Lundström

Olsson

Corcoran

et al. 2013

Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013

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“…Before all waves can be input to the HLNF, the cw pump wave needs to be regenerated, which can be achieved with injection locking in which a slave laser tracks the phase and frequency of the pump wave [8]. A PLL is also needed at this point to ensure proper phase relation.…”

Section: Psas As In-line Amplifiers In Transmission Linksmentioning

confidence: 99%