Optical Injection Locking for Carrier Phase Recovery and Regeneration

Slavı́k, Radan; Liu, Zhixin; Richardson, David J.

doi:10.1364/ofc.2017.th4i.3

Cited by 4 publications

(2 citation statements)

References 13 publications

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“…3 and Appendix A.2 for more details). As such, the injection locked Brillouin laser may serve as both a narrowband (< 1 MHz) optical filter and low-noise amplifier in the context of coherent optical communications, enabling high-fidelity carrier recovery [38] of data-laden signals and new high-performance optical signal processing schemes [39]. Moreover, by tuning the optical resonances using silicon photonic integrated heaters [40], this narrowband functionality is readily reconfigurable across the c-band.…”

Section: Discussionmentioning

confidence: 99%

Back-scatter immune injection-locked Brillouin laser in silicon

Otterstrom,

Gertler,

Zhou

et al. 2020

Preprint

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Section: Discussionmentioning

confidence: 99%

Back-scatter immune injection-locked Brillouin laser in silicon

Otterstrom,

Gertler,

Zhou

et al. 2020

Preprint

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“…Injection locking (IL) is a powerful technique with wide-ranging applications from communications, through to synchronisation and sensing. Innumerable publications operating at the C-band (1530-1565 nm) have shown the need for IL in phase-sensitive optical amplifiers [1], clock recovery [2], phase recovery [3], filtering [4], bandwidth enhancement [5] and carrier recovery [6] amongst many others. At ∼2 μm and mid-IR, however, compact laser availability is limited.…”

Section: Introductionmentioning

confidence: 99%

Stable injection locking with slotted Fabry–Perot lasers at 2 μm

2018

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Injection locking has many applications in telecommunications systems, such as narrowing linewidths, increasing bandwidth and improving filtering. Beyond telecommunications, injection locking is widely used in remote sensing. This is of particular interest for applications in the 2 μm region, where gases such as carbon dioxide, water vapour and methane have identifiable absorption features. In this paper, we demonstrate stable injection locking with slotted Fabry-Perot lasers in the 2 μm wavelength region. Injection locking was observed in both the optical domain and power spectrum; with key features recorded such as injection 'pulling', side-mode suppression and the characteristic quiet region in the electrical domain denoting single-frequency emission and stable locking. The effect of varying the injection ratio was investigated, with a decreased injection ratio corresponding to a reduction in the locking bandwidth. Finally, the lasers were shown to remain injection locked, with no thermal drift, for over 24 h, indicating their suitability for implementation in a real-world telecommunications system.

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All-optical majority gate based on an injection-locked laser

Lerber

Lassas

Lyubopytov

et al. 2019

Sci Rep

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An all-optical computer has remained an elusive concept. To construct a practical computing primitive equivalent to an electronic Boolean logic, one should utilize nonlinearity that overcomes weaknesses that plague many optical processing schemes. An advantageous nonlinearity provides a complete set of logic operations and allows cascaded operations without changes in wavelength or in signal encoding format. Here we demonstrate an all-optical majority gate based on a vertical-cavity surface-emitting laser (VCSEL). Using emulated signal coupling, the arrangement provides Bit Error Ratio (BER) of 10−6 at the rate of 1 GHz without changes in the wavelength or in the signal encoding format. Cascaded operation of the injection-locked laser majority gate is simulated on a full adder and a 3-bit ripple-carry adder circuits. Finally, utilizing the spin-flip model semiconductor laser rate equations, we prove that injection-locked lasers may perform normalization operations in the steady-state with an arbitrary linear state of polarization.

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Optical Injection Locking for Carrier Phase Recovery and Regeneration

Abstract: We review various scenarios for using optical injection locking for phase synchronization of signals to a local oscillator. We concentrate on the principle of operation and key properties needed.

Cited by 4 publications

References 13 publications

Back-scatter immune injection-locked Brillouin laser in silicon

Back-scatter immune injection-locked Brillouin laser in silicon

Stable injection locking with slotted Fabry–Perot lasers at 2 μm

All-optical majority gate based on an injection-locked laser

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