Repetition rate multiplication of femtosecond light pulses using a phase-locked all-pass fiber resonator

Lee, Joohyung; Kim, Seung-Woo; Kim, Young‐Jin

doi:10.1364/oe.23.010117

Cited by 17 publications

(6 citation statements)

References 37 publications

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“…Like the Fabry-Pérot cavity, however with numerous practical advantages, the single transverse ORC of the ring resonator can be more easily engineered to filter an OFC selectively and repetitively. Direct coupling add-only ring resonator's ORC modes have been previously used as notch repetitive filters to double the repletion rate of an OFC 22 . In this paper, we present theoretical and experimental investigations performed on the beneficial use of a double directional coupler add-drop fibre ring resonator (FRR) and Vernier effect to filter an OFC of a fibred femtosecond laser selectively and repetitively and increase its 250 MHz repetition rate up to 10 GHz.…”

Section: Introductionmentioning

confidence: 99%

Photonic Generation of High Power, Ultrastable Microwave Signals by Vernier Effect in a Femtosecond Laser Frequency Comb

Saleh

Marechal

Dubois

et al. 2018

Sci Rep

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Optical frequency division of an ultrastable laser to the microwave frequency range by an optical frequency comb has allowed the generation of microwave signals with unprecedently high spectral purity and stability. However, the generated microwave signal will suffer from a very low power level if no external optical frequency comb repetition rate multiplication device is used. This paper reports theoretical and experimental studies on the beneficial use of the Vernier effect together with the spectral selective filtering in a double directional coupler add-drop optical fibre ring resonator to increase the comb repetition rate and generate high power microwaves. The studies are focused on two selective filtering aspects: the high rejection of undesirable optical modes of the frequency comb and the transmission of the desirable modes with the lowest possible loss. Moreover, the conservation of the frequency comb stability and linewidth at the resonator output is particularly considered. Accordingly, a fibre ring resonator is designed, fabricated, and characterized, and a technique to stabilize the resonator’s resonance comb is proposed. A significant power gain is achieved for the photonically generated beat note at 10 GHz. Routes to highly improve the performances of such proof-of-concept device are also discussed.

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Section: Introductionmentioning

confidence: 99%

Photonic Generation of High Power, Ultrastable Microwave Signals by Vernier Effect in a Femtosecond Laser Frequency Comb

Saleh

Marechal

Dubois

et al. 2018

Sci Rep

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“…The maximum SMSR is 41 dB for M=2 and the SMSR monotonically decreases down to 12 dB for M=128. Compared to other existing RRM methods such as Mach-Zehnder interferomter [30][31][32] and all-pass resonators [33][34][35] , it has much higher multiplication tunability with similar SMSR performances. Moreover, the demonstrated SMSR is higher than that of single-pass cavity-filtering methods with F-P cavity with finesse ~ 300 [27][28][29] for overall tested range.…”

Section: Discussionmentioning

confidence: 99%

“…For this, several different methods, such as Fabry-Pérot (F-P) etalons [26][27][28][29] , Mach-Zehnder interferometers [30][31][32] and sub-ring fibre resonators [33][34][35] , have been demonstrated. Precisely fabricated F-P cavity filters frequency modes by more than GHz free-spectral-range and this mode selecting can be stabilized by well-developed stabilization techniques 36,37 .…”

mentioning

confidence: 99%

Highly tunable repetition-rate multiplication of mode-locked lasers using all-fibre harmonic injection locking

Jeon¹,

Zhang²,

Shin³

et al. 2018

Sci Rep

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Higher repetition-rate optical pulse trains have been desired for various applications such as high-bit-rate optical communication, photonic analogue-to-digital conversion, and multi-photon imaging. Generation of multi GHz and higher repetition-rate optical pulse trains directly from mode-locked oscillators is often challenging. As an alternative, harmonic injection locking can be applied for extra-cavity repetition-rate multiplication (RRM). Here we have investigated the operation conditions and achievable performances of all-fibre, highly tunable harmonic injection locking-based pulse RRM. We show that, with slight tuning of slave laser length, highly tunable RRM is possible from a multiplication factor of 2 to >100. The resulting maximum SMSR is 41 dB when multiplied by a factor of two. We further characterize the noise properties of the multiplied signal in terms of phase noise and relative intensity noise. The resulting absolute rms timing jitter of the multiplied signal is in the range of 20 fs to 60 fs (10 kHz–1MHz) for different multiplication factors. With its high tunability, simple and robust all-fibre implementation, and low excess noise, the demonstrated RRM system may find diverse applications in microwave photonics, optical communications, photonic analogue-to-digital conversion, and clock distribution networks.

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“…The dual-comb based absolute distance measurement has been made possible by analyzing the individual phase information of each optical mode in the frequency domain, or by measuring the timing difference of multiple interference signals in the time domain [ 16 , 17 , 18 , 19 , 20 ]. Additionally, ultrafast time-resolving power attributed to the ultrashort pulse and high-peak power has surpassed the precision of conventional time-of-flight distance measurements, which were limited by the bandwidth of photodetection or time-counting electronics [ 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

Phase-Locked Synthetic Wavelength Interferometer Using a Femtosecond Laser for Absolute Distance Measurement without Cyclic Error

Kang

Lee

Kim

et al. 2023

Sensors

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We present a phase-locked synthetic wavelength interferometer that enables a complete elimination of cyclic errors in absolute distance measurements. With this method, the phase difference between the reference and measurement paths is fed back into a phase lock-in system, which is then used to control the synthetic wavelength and set the phase difference to zero using an external cavity acousto-optic modulator. We validated the cyclic error removal of the proposed phase-locked method by comparing it with the conventional phase-measuring method of the synthetic wavelength interferometer. By analyzing the locked error signal, we achieved a precision of 0.6 mrad in phase without any observed cyclic errors.

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Repetition rate multiplication of femtosecond light pulses using a phase-locked all-pass fiber resonator

Cited by 17 publications

References 37 publications

Photonic Generation of High Power, Ultrastable Microwave Signals by Vernier Effect in a Femtosecond Laser Frequency Comb

Photonic Generation of High Power, Ultrastable Microwave Signals by Vernier Effect in a Femtosecond Laser Frequency Comb

Highly tunable repetition-rate multiplication of mode-locked lasers using all-fibre harmonic injection locking

Phase-Locked Synthetic Wavelength Interferometer Using a Femtosecond Laser for Absolute Distance Measurement without Cyclic Error

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