Intensity fluctuation correlation for a Fabry Perot semiconductor laser: a semiclassical analysis

Vey, J.-L.; Karsten, Auen; Elsäßer, Wolfgang

doi:10.1016/s0030-4018(97)00357-x

Cited by 6 publications

(2 citation statements)

References 23 publications

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“…With a slightly different method based on second quantization, Elsasser and coworkers [8] have calculated the correlations of the output fields in a Fabry-Perot laser, including the effects of internal absorption and spatial hole burning, with the aim of generating correlated light beams, and found correlation factors up to 0.8. The low-frequency suppression of 1/f components in a laser diode by output subtraction has been investigated by R.J. Fronen [9] finding almost complete correlation between the two outputs.…”

Section: Noise Model and Calculationsmentioning

confidence: 99%

SNR improvement of 8.2 dB in a self-mixing laser diode interferometer by using the difference signal at the output mirrors [Invited]

Donati

Norgia

2021

中国光学快报

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At the mirrors of a Laser-Diode Self-Mixing Interferometer, the output beams carry anti-correlated (i.e., in phase opposition) interferometric signals, whereas the superposed noise fluctuations are (partially) correlated. Therefore, by using as an instrumental output of the interferometer the difference of the two, we double the amplitude of the self-mixing useful signal while the superposed noise is reduced. To validate the idea, we first calculate the noise reduction by means of a second-quantization model, finding that in a laser diode the SNR can be improved by 8.2-dB, typically. Then, we also carry out an experimental measurement of SNR and find very good agreement with the theoretical result.

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Section: Noise Model and Calculationsmentioning

confidence: 99%

SNR improvement of 8.2 dB in a self-mixing laser diode interferometer by using the difference signal at the output mirrors [Invited]

Donati

Norgia

2021

中国光学快报

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“…To reach picosecond pulse length, the laser mode angle on the laser medium has to be increased in order to reduce the effect of SHB but SHB can not be completely eliminated. Thin-disk lasers can then show pre-and post-pedestals 11 , amplitude noise 12,13 , and instabilities in the mode-locking regime 8 that may decrease the coupling efficiency into the high-gain Fabry-Perot cavity and the X-ray flux.…”

Section: High Average Power Picosecond Oscillatormentioning

confidence: 99%

High-power passively mode-locked Nd:YVO 4 oscillator with adjustable pulse duration between 46 ps and 12 ps

et al. 2010

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We report on a high-power, passively mode-locked, TEM 00 Nd:YVO 4 oscillator with adjustable pulse duration between 46 and 12ps. The laser is end-pumped by an 888nm laser diode and mode-locking is achieved with a semiconductor saturable absorber mirror (SESAM). The laser has a repetition rate of 91MHz and the M 2 beam quality factor is better than 1.2 at 15ps. At the optimum output coupler, it provides a maximum average output power of 45W with 32ps pulse duration. In literature, the presence of spatial hole burning (SHB) often helps to shorten the pulse length down to few picoseconds. However, SHB might be an issue for some specific application requiring e.g. low noise picosecond oscillators. In this contribution, we demonstrate that it is possible to shorten the pulse duration by lowering the intracavity losses without SHB. Pulse tunability from 46 to 12ps is achieved by changing the output coupler of the cavity while staying in the continuous-wave mode-locked regime. Pulse duration is almost linear with the output coupler transmission and increases from 12 to 32ps with average output power ranging from 15 to 45W. In this range of output power, we demonstrate the shortest pulses directly from a Nd:YVO 4 oscillator.

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High-pulse-energy passively mode-locked Nd:YVO4 laser without spatial hole burning effect

Chao

Chen

2014

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Intensity fluctuation correlation for a Fabry Perot semiconductor laser: a semiclassical analysis

Cited by 6 publications

References 23 publications

SNR improvement of 8.2 dB in a self-mixing laser diode interferometer by using the difference signal at the output mirrors [Invited]

SNR improvement of 8.2 dB in a self-mixing laser diode interferometer by using the difference signal at the output mirrors [Invited]

High-power passively mode-locked Nd:YVO 4 oscillator with adjustable pulse duration between 46 ps and 12 ps

High-pulse-energy passively mode-locked Nd:YVO4 laser without spatial hole burning effect

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