Browsing by Author "Chiang, AC"

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Pulsed optical parametric generation, amplification, and oscillation in monolithic periodically poled lithium niobate crystals
(2004-06-01)
Chiang, AC
;
Wang, TD
;
Lin, YY
;
Lau, CW
;
Chen, YH
We conducted a series of passively Q-switched Nd:YAG laser pumped optical parametric generation, amplification, and oscillation experiments in monolithic periodically poled lithium niobate (PPLN) crystals. Double-pass optical parametric generation with an effective gain length of 10 cm in a PPLN crystal was performed in comparison with single-pass operation in the same crystal. By seeding a PPLN, optical parametric amplifier with a distributed feedback (DFB) diode laser, we produced 200-ps transform-limited laser pulses at 1549.6 mn and observed parametric gain competition at different pump levels. For optical parametric oscillations, we first demonstrated 22% power efficiency from a 2.4-cm intrinsic-cavity PPLN optical parametric oscillator pumped by a 4.2-ns, 10-kW passively Q-switched Nd:YAG laser. Preliminary studies on DFB optical parametric oscillators in PPLN are mentioned. The temporal and spectral properties of these optical parametric generators, amplifiers, and oscillators are characterized and discussed.
Single-longitudinal-mode, tunable dual-wavelength, CWNd : YVO4 laser
(2006-06-12)
Lin, YY
;
Chen, SY
;
Chiang, AC
;
Tu, RY
;
Huang, YC
We report a single-longitudinal-mode CW diode-pumped Nd:YVO4 laser emitting at both 1064 and 1342 nm with 10% optical efficiency at 20-W pump power. The measured spectral widths at 1064 and 1342 nm were less than 450 MHz and 400 MHz, respectively. The two emission wavelengths can be independently tuned over the lasing bandwidths of the dual-wavelength laser. (c) 2006 Optical Society of America.