Advances in Nonlinear Optics by Chen Xianfeng; Zhang Guoquan; Zeng Heping

Author:Chen, Xianfeng; Zhang, Guoquan; Zeng, Heping
Language: eng
Format: epub
Publisher: De Gruyter
Published: 2014-12-08T16:00:00+00:00

(2.161)

(2.162)

with s2 = κκ* + (Δβ/2)2. Considering E1,2 = A1,2(z) exp [i(β1,2z - ωt)], the phase of EW is derived as

(2.163)

The inverse of the effective group velocity of EW is given by

(2.164)

where v1 and v2 are the group velocity of OW and EW in the medium of lithium niobate, respectively. And the transmission of EW is

(2.165)

For QPM condition (Δβ = 0), the effective group velocity of EW is

(2.166)

Fig. 2.55. Theoretical results on the group velocity as a function of sz.

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