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Conference paper

External-cavity high-power dual-wavelength tapered amplifier with tunable THz frequency difference

By Chi, Mingjun1,2; Jensen, Ole Bjarlin1,2; Petersen, Paul Michael1,2

Edited by Zediker, Mark S.

From

Department of Photonics Engineering, Technical University of Denmark1

Diode Lasers and LED Systems, Department of Photonics Engineering, Technical University of Denmark2

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 sum-frequency generation experiment in a bismuth triborate (BIBO) nonlinear crystal.

Language: English
Year: 2012
Pages: 824114-6
Proceedings: SPIE Photonics West : High-Power Diode Laser Technology and Applications X
ISSN: 1996756x and 0277786x
Types: Conference paper
DOI: 10.1117/12.908248
ORCIDs: Chi, Mingjun , Jensen, Ole Bjarlin and Petersen, Paul Michael
Keywords

Dual-wavelength External-cavity High power tapered laser THz Tapered amplifier

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