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Proceedings Paper

External-cavity high-power dual-wavelength tapered amplifier with tunable THz frequency difference
Author(s): Mingjun Chi; Ole Bjarlin Jensen; Paul Michael Petersen
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Paper Abstract

A tunable 800 nm high-power dual-wavelength diode laser system with double-Littrow external-cavity feedback is demonstrated. The two wavelengths can be tuned individually, and the frequency difference of the two wavelengths is tunable from 0.5 to 5.0 THz. A maximum output power of 1.54 W is achieved with a frequency difference of 0.86 THz, the output power is higher than 1.3 W in the 5.0 THz range of frequency difference, and the amplified spontaneous emission intensity is more than 20 dB suppressed in the range of frequency difference. The beam quality factor M2 is 1.22±0.15 at an output power of 1.35 W. The simultaneous oscillation of the two wavelengths is under test by the sumfrequency generation experiment in a bismuth triborate (BIBO) nonlinear crystal.

Paper Details

Date Published: 8 February 2012
PDF: 6 pages
Proc. SPIE 8241, High-Power Diode Laser Technology and Applications X, 824114 (8 February 2012); doi: 10.1117/12.908248
Show Author Affiliations
Mingjun Chi, Technical Univ. of Denmark (Denmark)
Ole Bjarlin Jensen, Technical Univ. of Denmark (Denmark)
Paul Michael Petersen, Technical Univ. of Denmark (Denmark)


Published in SPIE Proceedings Vol. 8241:
High-Power Diode Laser Technology and Applications X
Mark S. Zediker, Editor(s)

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