摘要We build a compact high-conversion-efficiency and broadband tunable noncollinear optical parametric amplifier (OPA) in the infra-red (IR) pumped by a femtosecond Ti:sapphire CPA laser. The OPA consists of an internal seed of white-light continuum generator (WLG) and two noncollinear optical parametric amplifiers. The tunable wavelength range is from 1.2μm to 2.4μm for both signal and idle pulses. The total OPA efficiency in the last OPA stage reaches about 40% in a wider tunable spectral range (from 1.3μm to 1.7μm for signal pulse, from 1.5μm to 2.0μm for idle pulse respectively).
Abstract：We build a compact high-conversion-efficiency and broadband tunable noncollinear optical parametric amplifier (OPA) in the infra-red (IR) pumped by a femtosecond Ti:sapphire CPA laser. The OPA consists of an internal seed of white-light continuum generator (WLG) and two noncollinear optical parametric amplifiers. The tunable wavelength range is from 1.2μm to 2.4μm for both signal and idle pulses. The total OPA efficiency in the last OPA stage reaches about 40% in a wider tunable spectral range (from 1.3μm to 1.7μm for signal pulse, from 1.5μm to 2.0μm for idle pulse respectively).
[1] Lewenstein M, Balcou Ph, Ivanov M Yu, Huillier A L andCorkum P B 1994 Phys. Rev. A 49 2117 [2] Vozzi C, Cirmi G, Manzoni C, Benedetti E, Calegari F,Sansone G, Stagira S, Svelto O, De Silvestri S, Nisoli M and CerulloG 2006 Opt. Express 14 10109 [3] Corkum P B 1993 Phys. Rev. Lett. 71 1994 [4] Driscoll T J, Gale G M and Hache F 1994 Opt.Commun. 110 638 [5] Gale G M, Cavallari M, Driscoll T J and Hache F 1995 Opt. Lett. 20 1562 [6] Piel J, Buetter M and Riedle E 2000 Opt. Lett. 25 180 [7] Wasylczyk P, Walmsley I A, Wasilewski W and Radzewicz C2005 Opt. Lett. 30 13 [8] Vozzi C, Calegari F, Benedetti E, Gasilov S, Sansone G,Cerullo G, Nisoli M, De Silvestri S and Stagira S 2007 Opt.Lett. 32 20 [9] Balt\u{uska A, Fuji T and Kobayashi T 2002 Phys.Rev. Lett. 88 133901 [10] Wu K, Yang X and Zeng H 2007 Appl. Phys. B 88 189 [11] Zeng H, Wu J, Xu H, Wu K and Wu E 2004 Phys. Rev.Lett. 92 143903 [12] Kienberger R, Goulielmakis E, Uiberacker M, Baltuska A,Yakovlev V, Bammer F, Scrinzi A, Westerwalbesloh Th, Kleineberg U,Heinzmann U, Drescher M and Krausz F 2004 Nature 427817 [13] Yang W F, Song X H, Gong S Q, Cheng Y, Xu Z Z 2007 Phys. Rev. Lett. 99 133602 [14] Cerullo G and De Silvestri S 2003 Rev. Sci.Instrum. 74 1 [15] Liu J, Li X F, Chen X W, Jiang Y L, Li R X, Xu Z Z 2007 Acta Phys. Sin. 56 1375 (in Chinese)
2008, Vol. 25 
