Laterally coupled all solid-state laser array with a three-mirror cavity

Y. Kono, A. Nakanishi, Fumihiko Kannari

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

Abstract

A Nd:YAG microchip laser array is developed and the spatial phase correlation among each the microchip laser is attained utilizing the Talbot effect in a three-mirror cavity configuration. The laterally coupled Nd:YAG microchip laser array produces a pair of spots with angular separation of λ/d in its far field, where d is the distance between the adjacent sources, corresponding to an out-of-phase spatial mode coupling. The far field spot size is reduced by a factor of 4.7 compared with that obtained by incoherent adding of the individual microchip lasers. Although an external mirror positioned at the 1/4 Talbot distance from the microchip lasers source is very effective to introduce the coherence among the laser chips, the present long Talbot distance limits the output laser power due to the extremely high diffraction loss in the auxiliary cavity. Smaller beam sizes for each microchip lasers will decrease the filling factor and improve the efficiency in the Talbot cavity.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsA.V. Kudryashov, P. Galarneau
Pages31-38
Number of pages8
Volume3267
DOIs
Publication statusPublished - 1998
Externally publishedYes
EventLaser Resonators - San Jose, CA, United States
Duration: 1998 Jan 261998 Jan 27

Other

OtherLaser Resonators
CountryUnited States
CitySan Jose, CA
Period98/1/2698/1/27

Fingerprint

laser arrays
Solid state lasers
solid state lasers
Mirrors
mirrors
cavities
Lasers
lasers
far fields
YAG lasers
laser outputs
coupled modes
chips
Light sources
configurations
diffraction
Diffraction

Keywords

  • Coherent laser array
  • LD-pumped solid-state laser
  • Microchip laser
  • Phase-locked array
  • Talbot effect

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Kono, Y., Nakanishi, A., & Kannari, F. (1998). Laterally coupled all solid-state laser array with a three-mirror cavity. In A. V. Kudryashov, & P. Galarneau (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 3267, pp. 31-38) https://doi.org/10.1117/12.308122

Laterally coupled all solid-state laser array with a three-mirror cavity. / Kono, Y.; Nakanishi, A.; Kannari, Fumihiko.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / A.V. Kudryashov; P. Galarneau. Vol. 3267 1998. p. 31-38.

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

Kono, Y, Nakanishi, A & Kannari, F 1998, Laterally coupled all solid-state laser array with a three-mirror cavity. in AV Kudryashov & P Galarneau (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 3267, pp. 31-38, Laser Resonators, San Jose, CA, United States, 98/1/26. https://doi.org/10.1117/12.308122
Kono Y, Nakanishi A, Kannari F. Laterally coupled all solid-state laser array with a three-mirror cavity. In Kudryashov AV, Galarneau P, editors, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3267. 1998. p. 31-38 https://doi.org/10.1117/12.308122
Kono, Y. ; Nakanishi, A. ; Kannari, Fumihiko. / Laterally coupled all solid-state laser array with a three-mirror cavity. Proceedings of SPIE - The International Society for Optical Engineering. editor / A.V. Kudryashov ; P. Galarneau. Vol. 3267 1998. pp. 31-38
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