Laser Diode Feedback Signal for Position Sensing Using Self-Mixing Interference

Meng Yen Tsai; Tzong-Shi Liu; Tuviah E. Schlesinger

doi:10.1143/JJAP.48.03A007

Laser Diode Feedback Signal for Position Sensing Using Self-Mixing Interference

Meng Yen Tsai^*, Tzong-Shi Liu, Tuviah E. Schlesinger

^*Corresponding author for this work

Department of Mechanical Engineering

Research output: Contribution to journal › Conference article › peer-review

2 Scopus citations

Abstract

We modified a digital versatile disk (DVD) pickup head as a DVD actuator with a laser diode package for sensing. Tuning a tilting coil in the DVD actuator causes the tilt of a laser diode to compensate misalignment between a target surface and the laser diode facet. Experimental results show that tuning the tilting coil compensates misalignment between both surfaces to achieve effective self-mixing signal. Furthermore, we present the conformity between the output voltage and the target surface displacement from a laser diode package using the self-mixing effect. The resolution in linear region of self-mixing signal is 100 mV/nm. (C) 2009 The Japan Society of Applied Physics.

Original language	English
Article number	03A007
Journal	Japanese Journal of Applied Physics
Volume	48
Issue number	3
DOIs	https://doi.org/10.1143/JJAP.48.03A007
State	Published - Mar 2009
Event	18th Joint International Symposium on Optical Memory/24th Optical Data Storage Symposium - Big Isl, HI Duration: 13 Jul 2008 → 17 Jul 2008

Keywords

HEIGHT CONTROL; FLYING HEIGHT; PICKUP HEAD; STORAGE; CAVITY

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10.1143/JJAP.48.03A007

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Cite this

@article{d587b49fa78c46fba628e3df98c134a3,

title = "Laser Diode Feedback Signal for Position Sensing Using Self-Mixing Interference",

abstract = "We modified a digital versatile disk (DVD) pickup head as a DVD actuator with a laser diode package for sensing. Tuning a tilting coil in the DVD actuator causes the tilt of a laser diode to compensate misalignment between a target surface and the laser diode facet. Experimental results show that tuning the tilting coil compensates misalignment between both surfaces to achieve effective self-mixing signal. Furthermore, we present the conformity between the output voltage and the target surface displacement from a laser diode package using the self-mixing effect. The resolution in linear region of self-mixing signal is 100 mV/nm. (C) 2009 The Japan Society of Applied Physics.",

keywords = "HEIGHT CONTROL; FLYING HEIGHT; PICKUP HEAD; STORAGE; CAVITY",

author = "Tsai, {Meng Yen} and Tzong-Shi Liu and Schlesinger, {Tuviah E.}",

year = "2009",

month = mar,

doi = "10.1143/JJAP.48.03A007",

language = "English",

volume = "48",

journal = "Japanese Journal of Applied Physics",

issn = "0021-4922",

publisher = "Japan Society of Applied Physics",

number = "3",

note = "null ; Conference date: 13-07-2008 Through 17-07-2008",

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TY - JOUR

T1 - Laser Diode Feedback Signal for Position Sensing Using Self-Mixing Interference

AU - Tsai, Meng Yen

AU - Liu, Tzong-Shi

AU - Schlesinger, Tuviah E.

PY - 2009/3

Y1 - 2009/3

N2 - We modified a digital versatile disk (DVD) pickup head as a DVD actuator with a laser diode package for sensing. Tuning a tilting coil in the DVD actuator causes the tilt of a laser diode to compensate misalignment between a target surface and the laser diode facet. Experimental results show that tuning the tilting coil compensates misalignment between both surfaces to achieve effective self-mixing signal. Furthermore, we present the conformity between the output voltage and the target surface displacement from a laser diode package using the self-mixing effect. The resolution in linear region of self-mixing signal is 100 mV/nm. (C) 2009 The Japan Society of Applied Physics.

AB - We modified a digital versatile disk (DVD) pickup head as a DVD actuator with a laser diode package for sensing. Tuning a tilting coil in the DVD actuator causes the tilt of a laser diode to compensate misalignment between a target surface and the laser diode facet. Experimental results show that tuning the tilting coil compensates misalignment between both surfaces to achieve effective self-mixing signal. Furthermore, we present the conformity between the output voltage and the target surface displacement from a laser diode package using the self-mixing effect. The resolution in linear region of self-mixing signal is 100 mV/nm. (C) 2009 The Japan Society of Applied Physics.

KW - HEIGHT CONTROL; FLYING HEIGHT; PICKUP HEAD; STORAGE; CAVITY

U2 - 10.1143/JJAP.48.03A007

DO - 10.1143/JJAP.48.03A007

M3 - Conference article

VL - 48

JO - Japanese Journal of Applied Physics

JF - Japanese Journal of Applied Physics

SN - 0021-4922

IS - 3

M1 - 03A007

Y2 - 13 July 2008 through 17 July 2008

ER -