Coherence of pulsed microwave signals carried by two-frequency solid-state lasers

Lai, Ngoc Diep; Bretenaker, Fabien; Brunel, Marc

doi:10.1109/jlt.2003.820045

Cited by 13 publications

(1 citation statement)

References 24 publications

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“…Moreover, limited by the principle of the Fourier transform, spectrum of pulsed light shows periodicity and becomes wider simultaneously 9 which makes it hard to measure the linewidth. By calculating the microwave power spectral density of a train of dual-frequency pulses, Lai et al 10 can qualitatively determine the inter-pulse coherence of the beat note by the existence of frequency comb. However, the width of each frequency comb is affected by the duration of the processed pulses, thus can not precisely indicate the real linewidth of the beat note.…”

Section: Introductionmentioning

confidence: 99%

Coherence analysis of laser pulses based on an external cavity circulation

Xu¹,

Sun²,

Li³

2023

First International Conference on Spatial Atmospheric Marine Environmental Optics (SAME 2023)

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By constructing an external circulating cavity to provide sufficient delay that equals a multiple of pulse repetition time, a method with a fixed experimental configuration is proposed to measure the coherence length of both single-frequency and microwave-modulated optical pulses. This method can accurately determine the number of coherent pulses as well as distinguish the coherence states: complete coherence, partial coherence and complete incoherence. In addition, all desired coherence phenomena are obtained by one-time measurement, avoiding other operations like frequent fiber-cutting or devices-reconnection in previous methods. Simulation results show that the coherence length of the dual-frequency laser is periodically extended by the reciprocal of the frequency difference, and the random jitter of pulse propagation time would result in obvious measurement errors via perturbing coherence status.

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Section: Introductionmentioning

confidence: 99%

Coherence analysis of laser pulses based on an external cavity circulation

Xu¹,

Sun²,

Li³

2023

First International Conference on Spatial Atmospheric Marine Environmental Optics (SAME 2023)

View full text Add to dashboard Cite

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Bidirectional Red-Light Passively Q-Switched All-Fiber Ring Lasers With Carbon Nanotube Saturable Absorber

Zhu

Rong

et al. 2018

J. Lightwave Technol.

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Operation-Switchable Bidirectional Pulsed Fiber Laser Incorporating Carbon-Nanotube-Based Saturable Absorber

Liu

Chow

2014

IEEE J. Select. Topics Quantum Electron.

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We present an operation-switchable bidirectional ring-cavity pulsed fiber laser incorporating a carbon-nanotubebased saturable absorber and a polarization-dependent four-port circulator. By manipulating the intra-cavity polarization state of light, two sets of mode-locked pulses in terms of fundamental repetition rate and pulse width can be achieved separately from the same laser cavity. In clockwise direction, the laser generates modelocked output pulse train with a pulse width of 600 fs and a fundamental repetition rate of 12.68 MHz. While in counter-clockwise direction, the laser generates mode-locked pulses with a pulse width of 480 fs and a fundamental repetition rate of 16.46 MHz. Furthermore, the same laser cavity can produce bidirectional Q-switched output pulse trains with synchronized repetition rate. Such synchronized repetition rate is linearly proportional to pump power. The results show a multi-functional pulsed fiber laser with selectable output pulse trains.

show abstract

Coherence of pulsed microwave signals carried by two-frequency solid-state lasers

Cited by 13 publications

References 24 publications

Coherence analysis of laser pulses based on an external cavity circulation

Coherence analysis of laser pulses based on an external cavity circulation

Bidirectional Red-Light Passively Q-Switched All-Fiber Ring Lasers With Carbon Nanotube Saturable Absorber

Operation-Switchable Bidirectional Pulsed Fiber Laser Incorporating Carbon-Nanotube-Based Saturable Absorber

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