Wavelength conversion element and method for using same

Details Wavelength conversion element and method for using same Wavelength conversion element and method for using same

2006-04-25

2006-04-25

Lee, John D. (Department: 2874)

Optical: systems and elements

Optical frequency converter

C359S330000

Reexamination Certificate

active

07034990

ABSTRACT:
A wavelength conversion element which can set the wavelength of a pump light to a wavelength longer or shorter than the wavelength of a plurality of signal lights and a wavelength of a plurality of conversion lights present in an optical communication band, and a method for using such a wavelength conversion element are provided. A first pump light with a wavelength λ1of 1.51 μm, a second pump light with a wavelength λ2of 1.57 μm, and a signal light with a wavelength of λSof 1.55 μm are multiplexed in a multiplexer and introduced as an incident light into an optical waveguide of a wavelength conversion element. In the optical waveguide, an SF light with a wavelength λSFof 0.77 μm is generated by the SFG of the first pump light with a wavelength λ1of 1.51 μm and the second pump light with a wavelength λ2of 1.57 μm, the signal light is wavelength converted as a DF light (wavelength 1.53 μm) by the DFG of the SF light and signal light, and this DF light is outputted as the converted light (wavelength λC=1.53 μm).

REFERENCES:
patent: 5285508 (1994-02-01), Chikuma
patent: 6653630 (2003-11-01), Rosenman et al.
“1.5 μm band efficient broadband wavelength conversion by difference frequency generation in a periodically domain-inverted LiNbO3channel waveguide”, C.Q. Xu et al., Appl. Phys. Lett. 63(26), Dec. 27, 1993, p. 3559.
“1.5-μm-Band Wavelength Conversion Based on Cascaded Second-Order Nonlinearity in LiNbO3Waveguides”, M.H. Chou et al., IEEE Photonics Technology Letters, vol. 11, No. 6, Jun. 1999, p. 653.

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