Photoacoustic laser Doppler velocimetry using the self-mixing effect of CO 2 laser

Choi, Jong Woon; Yu, Moon-Jong; Kopica, Miroslaw

doi:10.1117/12.510201

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2009

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“…In previous research, many researchers analyzed the theory and observed the experimental phenomena of the self-mixing interference in lasers, which focused on the laser diode [1], the vertical-cavity surface-emitting laser [2], the Nd:YAG laser [3], the CO 2 laser [4], and the distributed feedback laser (DFB) laser [5,6]. In this paper, we focused on three-section distributed Bragg reflector (DBR) lasers.…”

Section: Introductionmentioning

confidence: 99%

The simulation of self-mixing interference effects in three-section DBR lasers

Zhou

Wang

Han

2009

Optik

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Section: Introductionmentioning

confidence: 99%

The simulation of self-mixing interference effects in three-section DBR lasers

Zhou

Wang

Han

2009

Optik

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Self-mixing speckle interference in DFB lasers

2006

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Theoretical analysis and experimental results of self-mixing speckle interference in a distributed feedback (DFB) laser are presented in this paper. Self-mixing speckle interference occurs when external optical feedback comes from a moving rough surface. Dynamic output variations in the DFB laser as well as their probability density functions (PDFs) are analyzed on the basis of speckle theory and self-mixing interference in the DFB laser. Numeric simulations and experiments are in agreement with each other. The both results show that self-mixing speckle interference in DFB laser can be used to measure velocity of target.

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Experiment observation of self-mixing interference in distributed feedback laser

Zhou¹,

Wang²,

Han³

2006

Opt. Express

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The experiment observation of self-mixing interference in distributed feedback (DFB) laser has been illuminated in this paper. The influences on self-mixing interference have been discussed in both simulation and experiment through changing the conditions of external cavity. The experiment results show a good agreement with the simulation results, and validate the feasibility of DFB lasers for self-mixing interference application. Combining the self-mixing interference technique and DFB laser, we can obtain the compact structure and high-accuracy self-mixing interference sensors.

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Photoacoustic laser Doppler velocimetry using the self-mixing effect of CO 2 laser

Cited by 3 publications

References 0 publications

The simulation of self-mixing interference effects in three-section DBR lasers

The simulation of self-mixing interference effects in three-section DBR lasers

Self-mixing speckle interference in DFB lasers

Experiment observation of self-mixing interference in distributed feedback laser

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