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Optimization of the Poling Efficiency

ALEKSANDRA APOSTOLUK, CELINE RORINI.AND JEAN-MICHEL NUNZI [Pg.354]

In the general case of second harmonic generation, it can be shown that the conversion efficiency Izo/lm is strongly dependent on the phase synchronization factor 1/2) where Ak = i 2o) respectively, [Pg.354]

Recently a new technique for avoiding the influence of the relative phase difference on the SHG intensity has been demonstrated. The samples used were thin polymer films of the DRl-MMA 35/65 copolymer (as described in section 11.2.2). Their thickness was determined with a Dektak profilermeter to be about 0.6 pm. The refractive index difference for the fundamental wave at 1.06 im and the second harmonic wave at 532 nm is equal to Am = - M2a [Pg.356]

23 Experimental setup for the preparation of periodically poled thin films. [Pg.357]

ALEKSANDRAAPOSTOLUK, CELINE FIORINI.AND JEAN-MrCHEL NUHZt [Pg.354]

20 Periodic self-organization for perfectly phase-matched second harmonic generation.  [Pg.354]

Tlie modaiariGi) perlodifitv A pf flie erder can be easily [Pg.355]

ALEKSANDRAAPOSTOLUK,c6UNE FIORIN1.AND JEAN-MICHEL NUNZ  [Pg.356]


Characterization of the Photoinduced Susceptibility I 1.2.4 Optimization of the Poling Efficiency... [Pg.331]

In an efficient digital simulation, lumped loss factors of the form Gk (0)) are approximated by a rational frequency response Gk(c,mT). In general, the coefficients of the optimal rational loss filter are obtained by minimizing I Ylk (go) - Gk d r ) I with respect to the filter coefficients or the poles and zeros of the filter. To avoid introducing frequency-dependent delay, the loss filter should be a zero-phase, finite-impluse-response (FIR) filter [Rabiner and Gold, 1975], Restriction to zero phase requires the impulse response g.k(n) to be finite in length (i.e., an FIR filter) and it must be symmetric about time zero, i.e., ) k(-n) = gk(n). In most implementations, the zero-phase FIR filter can be converted into a causal, linear phase filter by reducing an adjacent delay line by half of the impulse-response duration. [Pg.526]


See other pages where Optimization of the Poling Efficiency is mentioned: [Pg.353]    [Pg.331]    [Pg.353]    [Pg.353]    [Pg.331]    [Pg.353]    [Pg.345]    [Pg.345]    [Pg.221]    [Pg.514]    [Pg.386]    [Pg.29]    [Pg.104]    [Pg.107]    [Pg.581]    [Pg.123]    [Pg.123]    [Pg.335]    [Pg.353]    [Pg.335]    [Pg.541]    [Pg.1298]    [Pg.269]    [Pg.642]    [Pg.602]    [Pg.649]    [Pg.206]    [Pg.10]    [Pg.312]    [Pg.503]    [Pg.518]    [Pg.66]   


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