Optical: systems and elements – Optical frequency converter – Dielectric optical waveguide type
Reexamination Certificate
2007-02-06
2007-02-06
Lee, John D. (Department: 2874)
Optical: systems and elements
Optical frequency converter
Dielectric optical waveguide type
C359S326000, C359S328000, C359S330000
Reexamination Certificate
active
11018115
ABSTRACT:
A high-efficiency multiple-pass nonlinear wavelength converter and amplitude modulator employs a variable dispersion element between adjacent passes of a nonlinear wavelength conversion process in a single nonlinear optical material substrate. When controlled by a voltage via the electro-optic effect, the variable dispersion element dynamically alters the phase matching condition of the multiple-pass nonlinear wavelength conversion process and thus modulates the laser output amplitude. When the phase mismatch between passes is completely compensated by the variable dispersion element, the multiple-pass nonlinear wavelength converter achieves its maximum efficiency.
REFERENCES:
patent: 2003/0112492 (2003-06-01), Huang
Myers et al., Quasi-phasw-matched 1.064-μm-pumped optical parametric oscillator in bulk periodically poled LiNbO3, Optics Letters, Jan. 1, 1995, vol. 20, No. 1, pp. 52-54.
T.H. Jeys, Multipass optical parametric amplifier, Optics Letters, Aug. 15, 1996, vol. 21, No. 16, pp. 1229-1231.
Imeshev et al., Phase correction in double-pass quasi-phase-matched second-harmonic generation with a wedged crystal, Optics Letters, Feb. 1, 1998, vol. 23, No. 3, pp. 165-167.
Chang Ko-Wei
Chen Yen-Hung
Chiang An-Chung
Huang Yen-Chien
Lee John D.
National Tsing Hua University
Volpe and Koenig P.C.
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