Extremely short external cavity (ESEC) laser devices: Wavelength tuning and related optical characteristics: Dissertation

Janne K Aikio

Research output: ThesisDissertationMonograph

Abstract

In this work, we have developed ways to model and use extremely short external cavity (ESEC) semiconductor lasers. We have used modeling and experiments to analyze the wavelength tuning and other related optical characteristics of various ESEC laser devices. A brief overview is given on the physics related to semiconductor lasers. A simple phenomenological laser model is presented for the efficient calculation of the multi-mode output spectrum of a Fabry-Perot semiconductor laser. The effective reflectance model is used to simulate the influence of the ESEC on the laser operation. Several ways to calculate the effective reflectance from various kinds of ESEC structures are presented, including the Gaussian beam method, Fourier optics methods, and finite-difference time-domain (FDTD) method. We give an overview of the ESEC laser devices. The wavelength tuning and optical power characteristics of the planar-mirror (PM) ESEC laser are analyzed and compared to the measurements. The wavelength tuning of a laser using a micromachined tunable Fabry-Perot etalon in the ESEC configuration is analyzed. A method of wavelength tuning profilometry in the ESEC laser configuration is introduced, and the proof-of-principle experiments are presented and analyzed. The direct semiconductor laser readout systems for optical data storage are analyzed via modeling. Various types of playback signals are constructed, and a wavelength tuning enhanced readout method is introduced. The performance of a conventional Fabry-Perot laser and a very small aperture laser (VSAL) in the direct semiconductor laser readout system are modeled and compared using the novel FDTD laser-end model.
Original languageEnglish
QualificationDoctor Degree
Awarding Institution
  • University of Oulu
Supervisors/Advisors
  • Kopola, Harri, Supervisor
  • Anttila, Rauno, Supervisor, External person
  • Alanko, Seppo, Supervisor, External person
Award date18 Jun 2004
Place of PublicationEspoo
Publisher
Print ISBNs951-38-6377-8
Electronic ISBNs951-38-6378-6
Publication statusPublished - 2004
MoE publication typeG4 Doctoral dissertation (monograph)

Fingerprint

laser cavities
tuning
semiconductor lasers
wavelengths
lasers
readout
cavities
reflectance
playbacks
data storage
configurations
finite difference time domain method
apertures
optics
mirrors
physics
output

Keywords

  • external cavity lasers
  • effective reflectance
  • semiconductor lasers

Cite this

Aikio, Janne K. / Extremely short external cavity (ESEC) laser devices : Wavelength tuning and related optical characteristics: Dissertation. Espoo : VTT Technical Research Centre of Finland, 2004. 166 p.
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title = "Extremely short external cavity (ESEC) laser devices: Wavelength tuning and related optical characteristics: Dissertation",
abstract = "In this work, we have developed ways to model and use extremely short external cavity (ESEC) semiconductor lasers. We have used modeling and experiments to analyze the wavelength tuning and other related optical characteristics of various ESEC laser devices. A brief overview is given on the physics related to semiconductor lasers. A simple phenomenological laser model is presented for the efficient calculation of the multi-mode output spectrum of a Fabry-Perot semiconductor laser. The effective reflectance model is used to simulate the influence of the ESEC on the laser operation. Several ways to calculate the effective reflectance from various kinds of ESEC structures are presented, including the Gaussian beam method, Fourier optics methods, and finite-difference time-domain (FDTD) method. We give an overview of the ESEC laser devices. The wavelength tuning and optical power characteristics of the planar-mirror (PM) ESEC laser are analyzed and compared to the measurements. The wavelength tuning of a laser using a micromachined tunable Fabry-Perot etalon in the ESEC configuration is analyzed. A method of wavelength tuning profilometry in the ESEC laser configuration is introduced, and the proof-of-principle experiments are presented and analyzed. The direct semiconductor laser readout systems for optical data storage are analyzed via modeling. Various types of playback signals are constructed, and a wavelength tuning enhanced readout method is introduced. The performance of a conventional Fabry-Perot laser and a very small aperture laser (VSAL) in the direct semiconductor laser readout system are modeled and compared using the novel FDTD laser-end model.",
keywords = "external cavity lasers, effective reflectance, semiconductor lasers",
author = "Aikio, {Janne K}",
year = "2004",
language = "English",
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publisher = "VTT Technical Research Centre of Finland",
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}

Extremely short external cavity (ESEC) laser devices : Wavelength tuning and related optical characteristics: Dissertation. / Aikio, Janne K.

Espoo : VTT Technical Research Centre of Finland, 2004. 166 p.

Research output: ThesisDissertationMonograph

TY - THES

T1 - Extremely short external cavity (ESEC) laser devices

T2 - Wavelength tuning and related optical characteristics: Dissertation

AU - Aikio, Janne K

PY - 2004

Y1 - 2004

N2 - In this work, we have developed ways to model and use extremely short external cavity (ESEC) semiconductor lasers. We have used modeling and experiments to analyze the wavelength tuning and other related optical characteristics of various ESEC laser devices. A brief overview is given on the physics related to semiconductor lasers. A simple phenomenological laser model is presented for the efficient calculation of the multi-mode output spectrum of a Fabry-Perot semiconductor laser. The effective reflectance model is used to simulate the influence of the ESEC on the laser operation. Several ways to calculate the effective reflectance from various kinds of ESEC structures are presented, including the Gaussian beam method, Fourier optics methods, and finite-difference time-domain (FDTD) method. We give an overview of the ESEC laser devices. The wavelength tuning and optical power characteristics of the planar-mirror (PM) ESEC laser are analyzed and compared to the measurements. The wavelength tuning of a laser using a micromachined tunable Fabry-Perot etalon in the ESEC configuration is analyzed. A method of wavelength tuning profilometry in the ESEC laser configuration is introduced, and the proof-of-principle experiments are presented and analyzed. The direct semiconductor laser readout systems for optical data storage are analyzed via modeling. Various types of playback signals are constructed, and a wavelength tuning enhanced readout method is introduced. The performance of a conventional Fabry-Perot laser and a very small aperture laser (VSAL) in the direct semiconductor laser readout system are modeled and compared using the novel FDTD laser-end model.

AB - In this work, we have developed ways to model and use extremely short external cavity (ESEC) semiconductor lasers. We have used modeling and experiments to analyze the wavelength tuning and other related optical characteristics of various ESEC laser devices. A brief overview is given on the physics related to semiconductor lasers. A simple phenomenological laser model is presented for the efficient calculation of the multi-mode output spectrum of a Fabry-Perot semiconductor laser. The effective reflectance model is used to simulate the influence of the ESEC on the laser operation. Several ways to calculate the effective reflectance from various kinds of ESEC structures are presented, including the Gaussian beam method, Fourier optics methods, and finite-difference time-domain (FDTD) method. We give an overview of the ESEC laser devices. The wavelength tuning and optical power characteristics of the planar-mirror (PM) ESEC laser are analyzed and compared to the measurements. The wavelength tuning of a laser using a micromachined tunable Fabry-Perot etalon in the ESEC configuration is analyzed. A method of wavelength tuning profilometry in the ESEC laser configuration is introduced, and the proof-of-principle experiments are presented and analyzed. The direct semiconductor laser readout systems for optical data storage are analyzed via modeling. Various types of playback signals are constructed, and a wavelength tuning enhanced readout method is introduced. The performance of a conventional Fabry-Perot laser and a very small aperture laser (VSAL) in the direct semiconductor laser readout system are modeled and compared using the novel FDTD laser-end model.

KW - external cavity lasers

KW - effective reflectance

KW - semiconductor lasers

M3 - Dissertation

SN - 951-38-6377-8

T3 - VTT Publications

PB - VTT Technical Research Centre of Finland

CY - Espoo

ER -