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1

Acousto-optic Tunable Filters in Two-Mode Fibers

Dan Östling, Helge E Engan

Journal:

Optical Fiber Technology

Année:

1997

Langue:

english

Fichier:

PDF, 174 KB

english, 1997

2

Position weighting of fiber Bragg gratings for bandpass filtering

Storøy, Helge, Engan, Helge E., Sahlgren, Bengt, Stubbe, Raoul

Journal:

Année:

1997

Langue:

english

Fichier:

PDF, 233 KB

english, 1997

3

Torsional wave scattering from a diameter step in a rod

Engan, Helge E.

Journal:

The Journal of the Acoustical Society of America

Année:

1998

Langue:

english

Fichier:

PDF, 290 KB

english, 1998

4

Analysis of polarization-mode coupling by acoustic torsional waves in optical fibers

Engan, Helge E.

Journal:

Journal of the Optical Society of America A

Année:

1996

Langue:

english

Fichier:

PDF, 440 KB

english, 1996

5

Acoustooptic characterization of a birefringent two-mode photonic crystal fiber

Haakestad, Magnus W., Engan, Helge E.

Journal:

Année:

2006

Langue:

english

Fichier:

PDF, 525 KB

english, 2006

6

Wide frequency range measurements of absolute phase and amplitude of vibrations in micro- and nanostructures by optical interferometry

Martinussen, Hanne, Aksnes, Astrid, Engan, Helge E.

Journal:

Année:

2007

Langue:

english

Fichier:

PDF, 1.68 MB

english, 2007

7

Fiber-optic frequency shifter with no mode change using cascaded acousto-optic interaction regions

Askautrud, Jan Ove, Engan, Helge E.

Journal:

Année:

1990

Langue:

english

Fichier:

PDF, 380 KB

english, 1990

8

All-fiber acousto-optic frequency shifter excited by focused surface acoustic waves

Engan, Helge E., Myrtveit, Toril, Askautrud, Jan O.

Journal:

Année:

1991

Langue:

english

Fichier:

PDF, 370 KB

english, 1991

9

Spectral stability and smoothness of a phase-modulated fiber laser

Östling, Dan, Sinha, Pranay G., Engan, Helge E.

Journal:

Année:

1995

Langue:

english

Fichier:

PDF, 307 KB

english, 1995

10

Narrow-band acousto-optic tunable filtering in a two-mode fiber

Östling, Dan, Engan, Helge E.

Journal:

Année:

1995

Langue:

english

Fichier:

PDF, 275 KB

english, 1995

11

Broadband spatial mode conversion by chirped fiber bending

Östling, Dan, Engan, Helge E.

Journal:

Année:

1996

Langue:

english

Fichier:

PDF, 289 KB

english, 1996

12

Intermodal beat lengths in birefringent two-mode fibers

Östling, Dan, Langli, Bjørnar, Engan, Helge E.

Journal:

Année:

1996

Langue:

english

Fichier:

PDF, 239 KB

english, 1996

13

Phase reconstruction from reflectivity in fiber Bragg gratings

Skaar, Johannes, Engan, Helge E.

Journal:

Année:

1999

Langue:

english

Fichier:

PDF, 265 KB

english, 1999

14

Second-order effects in acoustic surface-wave filters: design methods

Skeie, Halvor, Engan, Helge

Journal:

Radio and Electronic Engineer

Année:

1976

Langue:

english

Fichier:

PDF, 1.51 MB

english, 1976

15

An ultrasound power meter

Journal:

The Journal of the Acoustical Society of America

Année:

1982

Langue:

english

Fichier:

PDF, 364 KB

english, 1982

16

[IEEE 2008 IEEE Ultrasonics Symposium (IUS) - Beijing, China (2008.11.2-2008.11.5)] 2008 IEEE Ultrasonics Symposium - Investigation of charge diffusion in CMUTs using optical interferometry

Martinussen, Hanne, Aksnes, Astrid, Engan, Helge E.

Année:

2008

Langue:

english

Fichier:

PDF, 768 KB

english, 2008

17

[IEEE 2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference - Long Beach, CA, USA (2006.05.21-2006.05.26)] 2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference - High sensitivity vibration measurements with absolute calibration

Martinussen, Hanne, Aksnes, Astrid, Engan, Helge E.

Année:

2006

Fichier:

PDF, 246 KB

2006

18

Heterodyne interferometer for absolute amplitude vibration measurements with femtometer sensitivity

Leirset, Erlend, Engan, Helge E., Aksnes, Astrid

Journal:

Année:

2013

Langue:

english

Fichier:

PDF, 1.34 MB

english, 2013

19

SPIE Proceedings [SPIE Optical Engineering + Applications - San Diego, California, USA (Sunday 10 August 2008)] Interferometry XIV: Techniques and Analysis - Modeling and optical characterization of vibrating micro- and nanostructures

Aksnes, Astrid, Schmit, Joanna, Creath, Katherine, Leirset, Erlend, Martinussen, Hanne, Towers, Catherine E., Engan, Helge E.

Année:

2008

Langue:

english

Fichier:

PDF, 1.54 MB

english, 2008

20

SPIE Proceedings [SPIE 10th Meeting on Optical Engineering in Israel - Jerusalem, Israel (Sunday 2 March 1997)] 10th Meeting on Optical Engineering in Israel - Acousto-optic interaction in two-mode optical fibers

Blotekjaer, Kjell, Engan, Helge E., Shladov, Itzhak, Rotman, Stanley R.

Année:

1997

Langue:

english

Fichier:

PDF, 735 KB

english, 1997

21

SPIE Proceedings [SPIE SPIE Optics + Photonics - San Diego, California, USA (Sunday 13 August 2006)] Interferometry XIII: Applications - Characterization of acoustic vibrations on micro- and nanostructures with picometer sensitivity

Aksnes, Astrid, Martinussen, Hanne, Engan, Helge E.

Année:

2006

Langue:

english

Fichier:

PDF, 775 KB

english, 2006

22

SPIE Proceedings [SPIE The Hague '90, 12-16 April - The Hague, Netherlands (Thursday 1 March 1990)] Fiber Optic Sensors IV - Distributed probing of the orientation of two-mode birefringent fiber using pulsed acoustic guided waves

Askautrud, Jan O., Engan, Helge E., Kersten, Ralf T.

Année:

1990

Langue:

english

Fichier:

PDF, 527 KB

english, 1990

23

SPIE Proceedings [SPIE Optical Metrology - Munich, Germany (Monday 18 June 2007)] Optical Measurement Systems for Industrial Inspection V - Interferometric characterization of capacitor micromachined ultrasonic transducers and validation by electrical measurements

Martinussen, Hanne, Osten, Wolfgang, Gorecki, Christophe, Aksnes, Astrid, Engan, Helge E., Novak, Erik L., Rønnekleiv, Arne

Année:

2007

Langue:

english

Fichier:

PDF, 1.16 MB

english, 2007

24

SPIE Proceedings [SPIE SPIE Optics + Photonics - San Diego, California, USA (Sunday 13 August 2006)] Interferometry XIII: Techniques and Analysis - Heterodyne interferometry for high sensitivity absolute amplitude vibrational measurements

Martinussen, Hanne, Aksnes, Astrid, Engan, Helge E.

Année:

2006

Langue:

english

Fichier:

PDF, 679 KB

english, 2006

25

Chest compression rate measurement from smartphone video

Engan, Kjersti, Hinna, Thomas, Ryen, Tom, Birkenes, Tonje S., Myklebust, Helge

Journal:

BioMedical Engineering OnLine

Année:

2016

Langue:

english

Fichier:

PDF, 2.64 MB

english, 2016

26

SPIE Proceedings [SPIE 10th Optical Fibre Sensors Conference - Glasgow, United Kingdom (Tuesday 11 October 1994)] Tenth International Conference on Optical Fibre Sensors - Wide-band operation of horns for excitation of acoustic modes in optical fibers

Engan, Helge E., Ostling, Dan, Kval, Per O., Askautrud, Jan O.

Année:

1994

Langue:

english

Fichier:

PDF, 266 KB

english, 1994

27

[IEEE 2017 10th International Symposium on Image and Signal Processing and Analysis (ISPA) - Ljubljana, Slovenia (2017.9.18-2017.9.20)] Proceedings of the 10th International Symposium on Image and Signal Processing and Analysis - Robust real-time chest compression rate detection from smartphone video

Meinich-Bache, Oyvind, Engan, Kjersti, Birkenes, Tonje S., Myklebust, Helge

Année:

2017

Langue:

english

Fichier:

PDF, 666 KB

english, 2017

28

Real-Time Chest Compression Quality Measurements by Smartphone Camera

Meinich-Bache, Øyvind, Engan, Kjersti, Birkenes, Tonje Søraas, Myklebust, Helge

Journal:

Journal of Healthcare Engineering

Année:

2018

Langue:

english

Fichier:

PDF, 4.27 MB

english, 2018

29

Object Detection During Newborn Resuscitation Activities

Meinich-Bache, Oyvind, Engan, Kjersti, Austvoll, Ivar, Eftestol, Trygve, Myklebust, Helge, Yarrot, Ladislaus, Kidanto, Hussein, Ersdal, Hege

Journal:

IEEE Journal of Biomedical and Health Informatics

Année:

2019

Langue:

english

Fichier:

PDF, 3.45 MB

english, 2019

30

Object Detection During Newborn Resuscitation Activities

Meinich-Bache, Oyvind, Engan, Kjersti, Austvoll, Ivar, Eftestol, Trygve, Myklebust, Helge, Yarrot, Ladislaus, Kidanto, Hussein, Ersdal, Hege

Journal:

IEEE Journal of Biomedical and Health Informatics

Année:

2019

Fichier:

PDF, 3.45 MB

2019

31

Activity Recognition from Newborn Resuscitation Videos

Meinich-Bache, Oyvind, Austnes, Simon Lennart, Engan, Kjersti, Austvoll, Ivar, Eftestol, Trygve, Myklebust, Helge, Kusulla, Simeon, Kidanto, Hussein, Ersdal, Hege

Journal:

IEEE Journal of Biomedical and Health Informatics

Année:

2020

Fichier:

PDF, 4.95 MB

2020

32

Guided Wave Optical Components and Devices || Acousto-Optic Interaction in Few-Mode Optical Fibers

Engan, Helge E.

Année:

2006

Fichier:

PDF, 2.05 MB

2006