Phase locking of laser diode arrays using a photorefractive Rh:BaTiO3 crystal

Paul Michael Petersen; Peter S. Jensen; P. M. Johansen

doi:10.1117/12.349253

Phase locking of laser diode arrays using a photorefractive Rh:BaTiO₃ crystal

Paul Michael Petersen, Peter S. Jensen, P. M. Johansen

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

1 Citation (Scopus)

Abstract

We have developed an extremely stable phase conjugate single-mode laser diode array with unique spatial and temporal coherence properties. The laser is based on a novel concept of frequency selective phase conjugate feedback. A laser diode array is coupled to the phase conjugate feedback system that comprises a rhodium doped BaTiO₃ crystal, a Fabry-Perot etalon, and a spatial filter. This feedback system forces the laser diode array to operate in a single spatial and a single longitudinal mode. In comparison with the free running laser diode array, the coherence length is increased significantly and the output is close to the diffraction limit. More than 80% of the total energy provided by the free running laser diode array can be extracted from this single-mode laser system.

Original language	English
Title of host publication	Proc. SPIE 3611, Laser Resonators II
Editors	Alexis V. Kudryashov
Number of pages	5
Volume	3611
Publisher	SPIE - International Society for Optical Engineering
Publication date	1999
Pages	142-146
DOIs	https://doi.org/10.1117/12.349253
Publication status	Published - 1999
Externally published	Yes
Event	Conference on Adaptive Systems and Technology: 44th SPIE Annual Meeting - Denver, CO, United States Duration: 21 Jul 1999 → 22 Jul 1999 Conference number: 44

Conference

Conference	Conference on Adaptive Systems and Technology
Number	44
Country/Territory	United States
City	Denver, CO
Period	21/07/1999 → 22/07/1999

Series	Proceedings of S P I E - International Society for Optical Engineering
Volume	3611
ISSN	0277-786X

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Petersen, Paul Michael ; Jensen, Peter S. ; Johansen, P. M. / Phase locking of laser diode arrays using a photorefractive Rh:BaTiO₃ crystal. Proc. SPIE 3611, Laser Resonators II. editor / Alexis V. Kudryashov. Vol. 3611 SPIE - International Society for Optical Engineering, 1999. pp. 142-146 (Proceedings of S P I E - International Society for Optical Engineering, Vol. 3611).

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title = "Phase locking of laser diode arrays using a photorefractive Rh:BaTiO3 crystal",

abstract = "We have developed an extremely stable phase conjugate single-mode laser diode array with unique spatial and temporal coherence properties. The laser is based on a novel concept of frequency selective phase conjugate feedback. A laser diode array is coupled to the phase conjugate feedback system that comprises a rhodium doped BaTiO3 crystal, a Fabry-Perot etalon, and a spatial filter. This feedback system forces the laser diode array to operate in a single spatial and a single longitudinal mode. In comparison with the free running laser diode array, the coherence length is increased significantly and the output is close to the diffraction limit. More than 80% of the total energy provided by the free running laser diode array can be extracted from this single-mode laser system.",

author = "Petersen, {Paul Michael} and Jensen, {Peter S.} and Johansen, {P. M.}",

year = "1999",

doi = "10.1117/12.349253",

language = "English",

volume = "3611",

series = "Proceedings of S P I E - International Society for Optical Engineering",

publisher = "SPIE - International Society for Optical Engineering",

pages = "142--146",

editor = "Kudryashov, {Alexis V.}",

booktitle = "Proc. SPIE 3611, Laser Resonators II",

address = "United States",

note = "Conference on Adaptive Systems and Technology ; Conference date: 21-07-1999 Through 22-07-1999",

}

Petersen, PM, Jensen, PS & Johansen, PM 1999, Phase locking of laser diode arrays using a photorefractive Rh:BaTiO₃ crystal. in AV Kudryashov (ed.), Proc. SPIE 3611, Laser Resonators II. vol. 3611, SPIE - International Society for Optical Engineering, Proceedings of S P I E - International Society for Optical Engineering, vol. 3611, pp. 142-146, Conference on Adaptive Systems and Technology, Denver, CO, United States, 21/07/1999. https://doi.org/10.1117/12.349253

Phase locking of laser diode arrays using a photorefractive Rh:BaTiO₃ crystal. / Petersen, Paul Michael; Jensen, Peter S.; Johansen, P. M.
Proc. SPIE 3611, Laser Resonators II. ed. / Alexis V. Kudryashov. Vol. 3611 SPIE - International Society for Optical Engineering, 1999. p. 142-146 (Proceedings of S P I E - International Society for Optical Engineering, Vol. 3611).

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

TY - GEN

T1 - Phase locking of laser diode arrays using a photorefractive Rh:BaTiO3 crystal

AU - Petersen, Paul Michael

AU - Jensen, Peter S.

AU - Johansen, P. M.

N1 - Conference code: 44

PY - 1999

Y1 - 1999

N2 - We have developed an extremely stable phase conjugate single-mode laser diode array with unique spatial and temporal coherence properties. The laser is based on a novel concept of frequency selective phase conjugate feedback. A laser diode array is coupled to the phase conjugate feedback system that comprises a rhodium doped BaTiO3 crystal, a Fabry-Perot etalon, and a spatial filter. This feedback system forces the laser diode array to operate in a single spatial and a single longitudinal mode. In comparison with the free running laser diode array, the coherence length is increased significantly and the output is close to the diffraction limit. More than 80% of the total energy provided by the free running laser diode array can be extracted from this single-mode laser system.

AB - We have developed an extremely stable phase conjugate single-mode laser diode array with unique spatial and temporal coherence properties. The laser is based on a novel concept of frequency selective phase conjugate feedback. A laser diode array is coupled to the phase conjugate feedback system that comprises a rhodium doped BaTiO3 crystal, a Fabry-Perot etalon, and a spatial filter. This feedback system forces the laser diode array to operate in a single spatial and a single longitudinal mode. In comparison with the free running laser diode array, the coherence length is increased significantly and the output is close to the diffraction limit. More than 80% of the total energy provided by the free running laser diode array can be extracted from this single-mode laser system.

U2 - 10.1117/12.349253

DO - 10.1117/12.349253

M3 - Article in proceeding

AN - SCOPUS:0032623384

VL - 3611

T3 - Proceedings of S P I E - International Society for Optical Engineering

SP - 142

EP - 146

BT - Proc. SPIE 3611, Laser Resonators II

A2 - Kudryashov, Alexis V.

PB - SPIE - International Society for Optical Engineering

T2 - Conference on Adaptive Systems and Technology

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Petersen PM, Jensen PS, Johansen PM. Phase locking of laser diode arrays using a photorefractive Rh:BaTiO₃ crystal. In Kudryashov AV, editor, Proc. SPIE 3611, Laser Resonators II. Vol. 3611. SPIE - International Society for Optical Engineering. 1999. p. 142-146. (Proceedings of S P I E - International Society for Optical Engineering, Vol. 3611). doi: 10.1117/12.349253