High power laser with integrated lens using focused ion beam etching

A. M. Rashed, K. A. Williams, R. V. Penty, I. H. White, P. J. Heard, J. C.C. Day, G. C. Allen

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

1 Citation (Scopus)

Abstract

Control of the optical mode in high power lasers is essential for a range of high brightness optical pumping applications. The inclusion of a lens within the cavity of a semiconductor laser is desirable not only to increase the proportion of light coupled back into the optical waveguide for improved efficiency, but also in the reduction of the divergence in the far field emission for higher brightness operation. In this work, a collimating lens is introduced at the output facet of a tapered waveguide laser to compensate for the divergence of the optical mode. This in turn is shown to enhance the laser efficiency while simultaneously reducing the far field divergence. Tapered waveguide lasers are considered in this work which operate at a wavelength of 980 nm with a well defined single lobed far field and up to 54 % wall plug efficiency. The lens has been formed by focused ion beam etching to leave a parabolic region of higher refractive index near the output facet. The lens design is computer generated and transferred to the laser using focused ion beam etching running under custom software.

Original languageEnglish
Title of host publicationCLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics
PublisherIEEE
Pages1091-1092
Number of pages2
ISBN (Electronic)0780356616, 9780780356610
DOIs
Publication statusPublished - 1 Jan 1999
Event1999 Pacific Rim Conference on Lasers and Electro-Optics, CLEO/Pacific Rim 1999 - Seoul, Korea, Republic of
Duration: 30 Aug 19993 Sep 1999

Publication series

NameCLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics
Volume4

Conference

Conference1999 Pacific Rim Conference on Lasers and Electro-Optics, CLEO/Pacific Rim 1999
CountryKorea, Republic of
CitySeoul
Period30/08/993/09/99

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Computer Networks and Communications
  • Physics and Astronomy(all)

Cite this

Rashed, A. M., Williams, K. A., Penty, R. V., White, I. H., Heard, P. J., Day, J. C. C., & Allen, G. C. (1999). High power laser with integrated lens using focused ion beam etching. In CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics (pp. 1091-1092). [814678] (CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics; Vol. 4). IEEE. https://doi.org/10.1109/CLEOPR.1999.814678

High power laser with integrated lens using focused ion beam etching. / Rashed, A. M.; Williams, K. A.; Penty, R. V.; White, I. H.; Heard, P. J.; Day, J. C.C.; Allen, G. C.

CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics. IEEE, 1999. p. 1091-1092 814678 (CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics; Vol. 4).

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

Rashed, AM, Williams, KA, Penty, RV, White, IH, Heard, PJ, Day, JCC & Allen, GC 1999, High power laser with integrated lens using focused ion beam etching. in CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics., 814678, CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics, vol. 4, IEEE, pp. 1091-1092, 1999 Pacific Rim Conference on Lasers and Electro-Optics, CLEO/Pacific Rim 1999, Seoul, Korea, Republic of, 30/08/99. https://doi.org/10.1109/CLEOPR.1999.814678
Rashed AM, Williams KA, Penty RV, White IH, Heard PJ, Day JCC et al. High power laser with integrated lens using focused ion beam etching. In CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics. IEEE. 1999. p. 1091-1092. 814678. (CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics). https://doi.org/10.1109/CLEOPR.1999.814678
Rashed, A. M. ; Williams, K. A. ; Penty, R. V. ; White, I. H. ; Heard, P. J. ; Day, J. C.C. ; Allen, G. C. / High power laser with integrated lens using focused ion beam etching. CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics. IEEE, 1999. pp. 1091-1092 (CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics).
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