| 1. |
- Olsson, Samuel L I, 1984, et al.
(författare)
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Injection locking-based pump recovery for phase-sensitive amplified links
- 2013
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Ingår i: Optics Express. - : The Optical Society. - 1094-4087 .- 1094-4087. ; 21:12, s. 14512-14529
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Tidskriftsartikel (refereegranskat)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.
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| 2. |
- Corcoran, William, 1983, et al.
(författare)
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Mitigation of Nonlinear Impairments on QPSK Data in Phase-Sensitive Amplified Links
- 2013
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Ingår i: 39th European Conference on Optical Communication and Exhibition, ECOC 2013, London, 22-26 September 2013. - : Institution of Engineering and Technology. - 9781849197595 ; :622 CP, s. 486-488
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Konferensbidrag (refereegranskat)abstract
- We investigate the mitigation of nonlinear impairments via phase-sensitive amplification. We show in simulation and experiment that this effect can be optimized through engineering link dispersion. A phase-sensitive amplified link is measured to reduce nonlinear penalties by over 3dB compared to a phase-insensitive amplified link.
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| 3. |
- Lorences Riesgo, Abel, 1987, et al.
(författare)
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Demonstration of Degenerate Vector Phase-Sensitive Amplification
- 2013
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Ingår i: Optical Communication (ECOC 2013), 39th European Conference and Exhibition on. - : Institution of Engineering and Technology. - 9781849197595 ; :622 CP, s. 492-494
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Konferensbidrag (refereegranskat)abstract
- The performance of a degenerate vector (dual cross-polarized pump) phase-sensitive amplifier (PSA) is characterized and compared to a degenerate scalar (dual co-polarized pump) PSA. In both schemes, we assess the gain as a function of the signal state of polarization, verifying its compliance with theory, and the phase transfer function.
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| 4. |
- Lundström, Carl Peter, 1982, et al.
(författare)
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Fiber optic parametric amplifier with 10-dB net gain without pump dithering
- 2013
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Ingår i: IEEE Photonics Technology Letters. - 1041-1135 .- 1941-0174. ; 25:3, s. 234-237
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Tidskriftsartikel (refereegranskat)abstract
- We present a stimulated Brillouin Scattering (SBS)-suppressed fiber optic parametric amplifier/wavelength converter constructed from four highly nonlinear fiber pieces with applied strain gradients and separated by isolators. The effective total SBS threshold increase is about 11 dB, and a net parametric gain of 10 dB is obtained without any pump dithering.
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| 5. |
- Lundström, Carl Peter, 1982, et al.
(författare)
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Fiber-optic parametric amplifiers without pump dithering
- 2013
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Ingår i: Optics InfoBase Conference Papers. - Washington, D.C. : OSA. - 2162-2701.
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Konferensbidrag (refereegranskat)abstract
- We present passively stimulated Brillouin scattering-suppressed highly nonlinear fiber cascades, and use them to implement fiber-optic parametric amplifiers capable of up to 10 dB net parametric gain without pump dithering.
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| 6. |
- Lundström, Carl Peter, 1982, et al.
(författare)
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Phase-Sensitive Amplifiers for Optical Links
- 2013
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Ingår i: Optical Fiber Communications Conference (OFC). - 9781479904570 ; , s. OW3C.5-
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Konferensbidrag (refereegranskat)abstract
- A review of recent progress on the implementation of phase-sensitive amplifiers in optical links is provided. Additionally, their use as regenerators, specifically the trade-off between phase- and amplitude regeneration is discussed.
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