Detailed Comparison of Injection-Seeded and Self-Seeded Performance of a 1060-nm Gain-Switched Fabry–PÉrot Laser Diode

Vu, Khu; Malinowski, A.; Roelens, M.A.F.; Richardson, D.J.

doi:10.1109/jqe.2008.922322

Cited by 8 publications

(3 citation statements)

References 30 publications

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“…While the demonstrated source exhibited pulse-to-pulse fluctuations as per the nature of the gain-switched diode seed, the observed energy jitter was already low enough to be acceptable for many applications. Further noise reductions might be accomplished by self-seeding [89,132,133] or injection seeding [134,135] the diode, although the former sacrifices fine control over the gainswitched diode's repetition rate. Additional Mamyshev regenerators could be added in sequence in order to effect a more stepwise transfer function and funnel the pulses towards a uniform eigenstate [50,51].…”

Section: Prospects For Short Pulses Without Mode-locking: Multi-stagementioning

confidence: 99%

Several new directions for ultrafast fiber lasers [Invited]

et al. 2018

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Ultrafast fiber lasers have the potential to make applications of ultrashort pulses widespread - techniques not only for scientists, but also for doctors, manufacturing engineers, and more. Today, this potential is only realized in refractive surgery and some femtosecond micromachining. The existing market for ultrafast lasers remains dominated by solid-state lasers, primarily Ti:sapphire, due to their superior performance. Recent advances show routes to ultrafast fiber sources that provide performance and capabilities equal to, and in some cases beyond, those of Ti:sapphire, in compact, versatile, low-cost devices. In this paper, we discuss the prospects for future ultrafast fiber lasers built on new kinds of pulse generation that capitalize on nonlinear dynamics. We focus primarily on three promising directions: mode-locked oscillators that use nonlinearity to enhance performance; systems that use nonlinear pulse propagation to achieve ultrashort pulses without a mode-locked oscillator; and multimode fiber lasers that exploit nonlinearities in space and time to obtain unparalleled control over an electric field.

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Section: Prospects For Short Pulses Without Mode-locking: Multi-stagementioning

confidence: 99%

Several new directions for ultrafast fiber lasers [Invited]

et al. 2018

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“…Gain-switched or mode-locked optical pulses of low timing jitter are very useful for high-speed optical time-division multiplexed communications and all-optical signal processing. It has been demonstrated previously that the timing jitter of gain-switched semiconductor lasers, such as Fabry-Perot (FP) LDs and distributed feedback (DFB) LDs, could be reduced by an external laser beam injection [17,18]. However, it was observed that a trade-off relationship existed between the jitter reduction and pulse width shortening of the gain-switched LDs.…”

Section: Timing-jitter Reduction Of Gain-switched Single-mode Vcselsmentioning

confidence: 99%

Dynamics of 1.55 μm Wavelength Single-Mode Vertical-Cavity Surface-Emitting Laser Output under External Optical Injection

Kim

Lee

Deshmukh

2012

Advances in Optical Technologies

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We review the temporal dynamics of the laser output spectrum and polarization state of 1.55 μm wavelength single-mode (SM) vertical-cavity surface-emitting lasers (VCSELs) induced by external optical beam injection. Injection of an external continuous-wave laser beam to a gain-switched SM VCSEL near the resonance wavelength corresponding to its main polarization-mode output was critical for improvement of its laser pulse generation characteristics, such as pulse timing-jitter reduction, linewidth narrowing, pulse amplitude enhancement, and pulse width shortening. Pulse injection of pulse width shorter than the cavity photon lifetime into the SM VCSEL in the orthogonal polarization direction with respect to its main polarization mode caused temporal delay of the polarization recovery after polarization switching (PS), and its delay was found to be the minimum at an optimized bias current. Polarization-mode bistability was observed even in the laser output of an SM VCSEL of a standard circularly cylindrical shape and used for all-optical flip-flop operations with set and reset injection pulses of very low pulse energy of order of the 3.5~4.5 fJ.

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“…We furthermore measure the single-pulse spectra using the dispersive Fourier transform technique [26], and confirm that the distributions of the pulses and their energies are not heavytailed, nor are the averages strongly skewed by extreme outliers (see Appendix B). Finally, techniques such as self-seeding [27][28][29] and external injection [30,31] have been thoroughly investigated as ways of curtailing shot-to-shot fluctuations in GSDs, reducing timing jitter, or even creating interpulse coherence [32]. We expect that implementing these approaches in a similar system to ours will yield comparable noise reductions, making such systems viable alternatives to modelocked oscillators even for noise-or coherencesensitive applications.…”

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confidence: 95%

High-power femtosecond pulses without a modelocked laser

Wright

Wise

2017

Optica

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We demonstrate a fiber system which amplifies and compresses pulses from a gain-switched diode. A Mamyshev regenerator shortens the pulses and improves their coherence, enabling subsequent amplification by parabolic pre-shaping. As a result, we are able to control nonlinear effects and generate nearly transform-limited, 140-fs pulses with 13-MW peak power—an order-of-magnitude improvement over previous gain-switched diode sources. Seeding with a gain-switched diode results in random fluctuations of 2% in the pulse energy, which future work using known techniques may ameliorate. Further development may allow such systems to compete directly with sources based on modelocked oscillators in some applications while enjoying unparalleled robustness and repetition rate control.

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Detailed Comparison of Injection-Seeded and Self-Seeded Performance of a 1060-nm Gain-Switched Fabry–PÉrot Laser Diode

Cited by 8 publications

References 30 publications

Several new directions for ultrafast fiber lasers [Invited]

Several new directions for ultrafast fiber lasers [Invited]

Dynamics of 1.55 μm Wavelength Single-Mode Vertical-Cavity Surface-Emitting Laser Output under External Optical Injection

High-power femtosecond pulses without a modelocked laser

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