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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 11 — May. 29, 2006
  • pp: 4721–4726

Simultaneous multi-wavelength oscillation of Nd laser around 1.3 µm: A potential source for coherent terahertz generation

Ardhendu Saha, Aniruddha Ray, Sourabh Mukhopadhyay, Nandita Sinha, Prasanta Kumar Datta, and Pranab Kumar Dutta  »View Author Affiliations


Optics Express, Vol. 14, Issue 11, pp. 4721-4726 (2006)
http://dx.doi.org/10.1364/OE.14.004721


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Abstract

Simultaneous oscillations of 1318.8nm, 1320.0nm, 1332.6nm, 1335.0nm, 1338.2nm and 1339.0nm in a side, pulsed-diode-laser-array pumped Nd:YAG laser is realized for both free running and Q-switched operation. An average power of 1.1W is obtained for an absorbed pump power of 7.1W with an effective optical slope efficiency of 33%. The difference frequency interactions among these wavelengths may be used to generate radiation in the range 0.13–3.43THz. With the two most intense lines at 1318.8nm and 1338.2nm, it is possible to generate coherent radiation at 3.3THz with numerically estimated peak power of 0.21W in a 1.5mm thick GaSe crystal.

© 2006 Optical Society of America

OCIS Codes
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3540) Lasers and laser optics : Lasers, Q-switched
(140.3580) Lasers and laser optics : Lasers, solid-state
(190.0190) Nonlinear optics : Nonlinear optics
(260.3090) Physical optics : Infrared, far

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: February 6, 2006
Revised Manuscript: May 9, 2006
Manuscript Accepted: May 9, 2006
Published: May 29, 2006

Citation
Ardhendu Saha, Aniruddha Ray, Sourabh Mukhopadhyay, Nandita Sinha, Prasanta K. Datta, and Pranab K. Dutta, "Simultaneous multi-wavelength oscillation of Nd laser around 1.3 μm: A potential source for coherent terahertz generation," Opt. Express 14, 4721-4726 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-11-4721


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