Vibration measurement with a micromachined mirror in a very-short external cavity laser

Chollet, Franck; Hegde, G. M.; Zhang, Xuming; Liu, Ai Qun; Asundi, Anand

doi:10.1016/j.sna.2004.04.023

Cited by 10 publications

(9 citation statements)

References 14 publications

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“…Then  F (t) can be figured up by calculating the inverse function of g(t) according to equation (2). Thereafter, we calculate the spectrum of  F (t), that is  F (f).…”

Section: In Frequency Domainmentioning

confidence: 99%

“…(1), (2), (3), and import the data to the hardware models presented in section III above to verify the C value solved by the modules whether equals to the preset C value.…”

Section: Simulations and Analysismentioning

confidence: 99%

“…As the feedback light carries motion and status information of the external reflective targets, so it can be applied to measure the parameters of the moving targets and the parameters of the SL itself, such as the measurement of displacement [1], vibration [2], velocity [3], the linewidth enhancement factor of the SL [4] and so on. The feedback strength factor (denoted by C) is an important parameter of optical feedback self-mixing interferometry systems, which reflects the feedback level of the system and affects the laser's intensity, the optical noise, the spectrum effect, the linewidth enhancement etc.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Design of Measurement Algorithm of Feedback Strength Factor of Optical Feedback Self-mixing Interferometry Systems based on System Generator

Zhao¹,

Ye²,

Yu³

2013

Proceedings of the 2nd International Conference on Computer Science and Electronics Engineering (ICCSEE 2013)

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Abstract-The spectrum features of the external light phase of a semiconductor laser without optical feedback and with optical feedback are analysed based on the Lang-Kobayashi equations, which contributes to putting forward the measurement algorithm of feedback strength factor of optical feedback self-mixing interferometry systems in the frequency domain. The hardware models of this algorithm are established by applying XILINX System Generator tools on the Matlab/Simulink software platform. Finally, the associated simulations for verification of the measurement algorithm in different feedback levels are carried out and it is proved effectively.Keywords-measurement and metrology; optical feedback self-mixing interferometry; feedback strength factor ; System Generator

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“…Then  F (t) can be figured up by calculating the inverse function of g(t) according to equation (2). Thereafter, we calculate the spectrum of  F (t), that is  F (f).…”

Section: In Frequency Domainmentioning

confidence: 99%

“…(1), (2), (3), and import the data to the hardware models presented in section III above to verify the C value solved by the modules whether equals to the preset C value.…”

Section: Simulations and Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Design of Measurement Algorithm of Feedback Strength Factor of Optical Feedback Self-mixing Interferometry Systems based on System Generator

Zhao¹,

Ye²,

Yu³

2013

Proceedings of the 2nd International Conference on Computer Science and Electronics Engineering (ICCSEE 2013)

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show abstract

“…If the mirror is suspended, its displacement is induced by acceleration or vibration of the mirror frame, allowing to measure it with very high accuracy. We have tried to propose a compact version of the system using a micromachined mirror in a very-short external cavity configuration (Chollet et al 2004). Actually, we showed that using an external cavity length below 10 µm is increasing the packaging tolerance.…”

Section: Vibration/acceleration Sensor With Very-short External Cavitmentioning

confidence: 99%

“…Accordingly, we have designed two different versions of the micro-mirror with integrated actuator that allows fixing roughly the cavity length by using mechanical contact between bumps on the mirror and the laser chip, and fine tuning by applying a voltage to the actuator. The earlier version was based on surface micromachining technique (Chollet et al 2004), but more recently we used a DRIE etched mirror with improved manufactureability (cf. figure 5) that was packaged with a laser diode.…”

Section: Vibration/acceleration Sensor With Very-short External Cavitmentioning

confidence: 99%

Of light, of MEMS: Optical MEMS in telecommunications and beyond

Chollet

Liu

Ashraf

et al. 2009

Sadhana

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The burst of the Internet bubble in 2000 has severely quenched the pace of development in the optical MEMS field. However, it is now clear that this field is again set to move forward as not only telecommunication but many other industries are benefiting from its application. We describe in this paper some of our latest achievements in the field, showing a new type of small scale optical switch based on integrated optics, a vibration/acceleration sensor using a veryshort external cavity laser and finally, the early development result of a nano-scale tunable photonic crystal that could be used for beam steering. The diversity of the applications we demonstrate, is a clear testimony that there is indeed 'plenty of room at the bottom'-and particularly in the natural combination of Light and MEMS!

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Improvement on vibration measurement performance of laser self-mixing interference by using a pre-feedback mirror

Zhu

Chen

Wang

et al. 2018

Optics and Lasers in Engineering

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Vibration measurement with a micromachined mirror in a very-short external cavity laser

Cited by 10 publications

References 14 publications

Design of Measurement Algorithm of Feedback Strength Factor of Optical Feedback Self-mixing Interferometry Systems based on System Generator

Design of Measurement Algorithm of Feedback Strength Factor of Optical Feedback Self-mixing Interferometry Systems based on System Generator

Of light, of MEMS: Optical MEMS in telecommunications and beyond

Improvement on vibration measurement performance of laser self-mixing interference by using a pre-feedback mirror

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