Injection locking of an additive-pulse mode-locked fiber laser

Dorring, J.; Li, Yan; Satorius, D.A.; Chen, Y.J.

doi:10.1109/lpt.2002.803915

Cited by 4 publications

(4 citation statements)

References 5 publications

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“…In addition to the strong pulse, the solution of the master equation ( 6) includes a weak continuum component, as well as a response pulse if the target fails to lock to the source. We are interested in the soliton-like pulse component (7) whose properties govern the frequency comb locking.…”

Section: Soliton Perturbation Theorymentioning

confidence: 99%

“…Margalit et al [4] derived estimates of the locking regime parameters, and studied numerically the pulse dynamics for some typical locked and non-locked parameters. The phenomenon was demonstrated experimentally in actively mode locked lasers in [5] and in passively mode locked fiber lasers in [6,7]. The effects of noise in injection locked mode locked lasers were studied in [8].…”

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confidence: 99%

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Frequency comb injection locking of mode locked lasers

Gat

Kielpinski

2013

New J. Phys.

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The two-frequency problem of synchronization of the pulse train of a passively mode locked soliton laser to an externally injected pulse train is solved in the weak injection regime. The source and target frequency combs are distinguished by the spacing and offset frequency mismatches. Locking diagrams map the domain in the mismatch parameter space where stable locking of the combs is possible. We analyze the dependence of the locking behavior on the relative frequency and chirp of the source and target pulses, and the conditions where the relative offset frequency has to be actively stabilized. Locked steady states are characterized by a fixed source-target time and phase shifts that map the locking domain. to the external frequency for strong enough injection or small enough frequency mismatch, with a sharp threshold separating configurations with stable locked steady states from unlocked configuration. Injection locking in continuous wave (cw) lasers has been extensively studied experimentally and theoretically [2]. Injection locking is useful to stabilize the target laser versus phase diffusion and frequency drift, and can be achieved for very weak seeding provided the frequency mismatch is small enough. Strong injection leads to rich behavior, including bifurcations, multistability, excitability and chaos [2].If the laser is mode locked, and the injected signal is pulsed, the target laser pulse train can injection-lock to the source pulse train. Unlike cw synchronization that implies entrainment of a single optical frequency, pulse train synchronization entails entrainment of two frequencies, namely the pulse repetition rate and the pulse phase shift per round trip. Since these two frequencies determine the spacing and offset of the pulse train frequency comb, pulse train synchronization is equivalent to injection locking of the target laser frequency comb to the comb of the source. In this way a very high-quality standard frequency comb source, that can be quite weak, could impart its quality to the target laser, locking it to the standard and reducing imperfections, such as pulse noise and frequency drift. A natural application is when the source is carrier-envelope phase locked, where injection locking locks the carrier-envelope phase of the target. When the repetition rates of the source and target are not matched but rationally related, synchronization results with a target repetition rate that is the least common multiple of the source and free running target, facilitating generation of high-repetition rate frequency comb [3].Compared to cw injection locking, there are few studies of injection locking of mode locked lasers. The basic theory of the system was developed in [4] using soliton perturbation theory in the framework of the Haus master equation model. Margalit et al [4] derived estimates of the locking regime parameters, and studied numerically the pulse dynamics for some typical locked and non-locked parameters. The phenomenon was demonstrated experimentally in actively mode locked lasers in ...

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Section: Soliton Perturbation Theorymentioning

confidence: 99%

mentioning

confidence: 99%

Frequency comb injection locking of mode locked lasers

Gat

Kielpinski

2013

New J. Phys.

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“…For example, it is used in the design of high performance quadrature oscillators [1], [2] and injection locked phase-locked loops (PLLs) [3]. Injection locking also has wide applications in optics [4], [5]. Thus, apart from its theoretical importance, study of injection locking is of great practical interest.…”

Section: Introductionmentioning

confidence: 99%

Gen-Adler: The generalized Adler's equation for injection locking analysis in oscillators

Bhansali

Roychowdhury

2009

2009 Asia and South Pacific Design Automation Conference

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Abstract-Injection locking analysis based on classical Adler's equation is limited to LC oscillators as it is dependent on quality factor. In this paper, we present the Generalized Adler's equation applicable for injection locking analysis on oscillators independent of the circuit topology. The equation is obtained by averaging the PPV phase macromodel. The procedure is considerably simple and handy to determine the locking range for arbitrary shape small AC injection signal. Analytical equations for injection locking dynamics are formulated using the Generalized Adler's equation and validated with the PPV simulations.

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“…So an external continuous wave (CW) light is injected into the laser cavity for providing the proper optical carrier to generate harmonic wave and ±2nd-order harmonic wave can oscillate stably in the fiber laser by controlling the wavelength and the power of injection light. This is the so-called injection mode-lock technique [9] .…”

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confidence: 99%

Effective generation of optical quadruple frequency millimeter-wave based on fiber laser using injection rational harmonic mode-locked technique

et al. 2009

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A method to generate the optical quadruple frequency millimeter-wave with high power efficiency is proposed and demonstrated based on the combination of the injection 2nd-order rational harmonic modelocked fiber ring laser technique and the fiber grating notch filter. In this approach, the fiber Bragg grating notch filter is inserted into the laser cavity to prevent the undesired optical carrier, so that the pump power can be converted to 2nd-order harmonic wave more efficiently. In our experiment, the power efficiency of optical quadruple frequency millimeter-wave (40 GHz) generation is ten folds of that of our previous method based only on the rational harmonic mode-locked technique.

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Injection locking of an additive-pulse mode-locked fiber laser

Cited by 4 publications

References 5 publications

Frequency comb injection locking of mode locked lasers

Frequency comb injection locking of mode locked lasers

Gen-Adler: The generalized Adler's equation for injection locking analysis in oscillators

Effective generation of optical quadruple frequency millimeter-wave based on fiber laser using injection rational harmonic mode-locked technique

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