Beam combination of multiple vertical external cavity surface emitting lasers via volume Bragg gratings

Chunte A. Lu, William P. Roach, Genesh Balakrishnan, Alexander R. Albrecht, Jerome V Moloney, Leonid B. Glebov

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

We present an experimental study on beam combining techniques with multiple vertical external cavity surface emitting lasers (VECSELs) using volume Bragg gratings (VBGs). The specially designed holographic gratings introduce frequency specific feedback for the near infrared wavelength VECSELs to achieve both spectral linewidth narrowing and beam combination effects. For coherent addition, we obtained >3W output power with 8% slope efficiency in a coherent power scaling cavity scheme. In the multiplexed VBGs (MVBGs) wavelength beam combining compound cavity scheme, we measured >6W combined output with nearly 100% combining efficiency. Both beam combining/power scaling schemes produced spectrally narrowed and near diffraction limited outputs.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSPIE
Volume8966
ISBN (Print)9780819498793
DOIs
StatePublished - 2014
EventVertical External Cavity Surface Emitting Lasers (VECSELs) IV - San Francisco, CA, United States
Duration: Feb 2 2014Feb 4 2014

Other

OtherVertical External Cavity Surface Emitting Lasers (VECSELs) IV
CountryUnited States
CitySan Francisco, CA
Period2/2/142/4/14

Fingerprint

Volume Bragg Grating
External Cavity
Bragg gratings
Surface emitting lasers
surface emitting lasers
Vertical
Laser
Holographic gratings
Wavelength
cavities
Linewidth
output
Output
Cavity
Diffraction
Scaling
Infrared radiation
Feedback
Holographic Grating
scaling

Keywords

  • Beam combining
  • Holographic gratings
  • Power scaling
  • Semiconductor laser
  • VECSELs

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Lu, C. A., Roach, W. P., Balakrishnan, G., Albrecht, A. R., Moloney, J. V., & Glebov, L. B. (2014). Beam combination of multiple vertical external cavity surface emitting lasers via volume Bragg gratings. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 8966). [89660Y] SPIE. https://doi.org/10.1117/12.2039666

Beam combination of multiple vertical external cavity surface emitting lasers via volume Bragg gratings. / Lu, Chunte A.; Roach, William P.; Balakrishnan, Genesh; Albrecht, Alexander R.; Moloney, Jerome V; Glebov, Leonid B.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8966 SPIE, 2014. 89660Y.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Lu, CA, Roach, WP, Balakrishnan, G, Albrecht, AR, Moloney, JV & Glebov, LB 2014, Beam combination of multiple vertical external cavity surface emitting lasers via volume Bragg gratings. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 8966, 89660Y, SPIE, Vertical External Cavity Surface Emitting Lasers (VECSELs) IV, San Francisco, CA, United States, 2/2/14. https://doi.org/10.1117/12.2039666
Lu CA, Roach WP, Balakrishnan G, Albrecht AR, Moloney JV, Glebov LB. Beam combination of multiple vertical external cavity surface emitting lasers via volume Bragg gratings. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8966. SPIE. 2014. 89660Y https://doi.org/10.1117/12.2039666
Lu, Chunte A. ; Roach, William P. ; Balakrishnan, Genesh ; Albrecht, Alexander R. ; Moloney, Jerome V ; Glebov, Leonid B. / Beam combination of multiple vertical external cavity surface emitting lasers via volume Bragg gratings. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8966 SPIE, 2014.
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