Generation and application of twin beams from an optical parametric oscillator including an α-cut KTP crystal

被引:81
作者
Gao, JR [1 ]
Cui, FY [1 ]
Xue, CY [1 ]
Xie, CD [1 ]
Kunchi, P [1 ]
机构
[1] Shanxi Univ, Inst Optoelect, Taiyuan 030006, Shanxi, Peoples R China
关键词
D O I
10.1364/OL.23.000870
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Measurement slight amounts of absorption of light with accuracy beyond the standard quantum limit has been experimentally demonstrated. The quantum-correlated twin beams used in the measurement were generated from a nondegenerate optical parametric oscillator including an alpha-cut KTiOPO4 crystal pumped by an intracavity frequency-doubled Nd:YAG laser. The noise in the intensity difference between the twin beams was reduced by 88% below the standard quantum limit (SQL). The signal-to-noise ratio was improved by 7 dB with respect to the SQL of the total light employed in the experiment and by 4 dB with respect to that of the signal light. (C) 1998 Optical Society of America.
引用
收藏
页码:870 / 872
页数:3
相关论文
共 21 条
[1]   SQUEEZED VACUUM FROM A MONOLITHIC OPTICAL PARAMETRIC OSCILLATOR [J].
BREITENBACH, G ;
MULLER, T ;
PEREIRA, SF ;
POIZAT, JP ;
SCHILLER, S ;
MLYNEK, J .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1995, 12 (11) :2304-2309
[2]  
FABRE C, 1997, 5 C BAL HUNG MAY
[3]   INTRACAVITY FREQUENCY-DOUBLED AND STABILIZED CW RING ND-YAG LASER WITH A PAIR OF KTP CRYSTALS [J].
GAO, JR ;
WANG, H ;
HUANG, MQ ;
XIE, CD ;
PENG, KC ;
YU, ZG ;
MA, CQ ;
WANG, XI .
APPLIED OPTICS, 1995, 34 (09) :1519-1522
[4]  
GIACOBINO E, 1992, APPL PHYS B, V55, P250
[5]  
GIACOBINO E, 1992, APPL PHYS B, V55, P210
[6]   SQUEEZED-LIGHT ENHANCED POLARIZATION INTERFEROMETER [J].
GRANGIER, P ;
SLUSHER, RE ;
YURKE, B ;
LAPORTA, A .
PHYSICAL REVIEW LETTERS, 1987, 59 (19) :2153-2156
[7]   OBSERVATION OF QUANTUM NOISE-REDUCTION ON TWIN LASER-BEAMS [J].
HEIDMANN, A ;
HOROWICZ, RJ ;
REYNAUD, S ;
GIACOBINO, E ;
FABRE, C ;
CAMY, G .
PHYSICAL REVIEW LETTERS, 1987, 59 (22) :2555-2557
[8]   Observation of squeezing using cascaded nonlinearity [J].
Kasai, K ;
Gao, JG ;
Fabre, C .
EUROPHYSICS LETTERS, 1997, 40 (01) :25-30
[9]   IMPROVEMENTS IN THE OBSERVED INTENSITY CORRELATION OF OPTICAL PARAMETRIC OSCILLATOR TWIN BEAMS [J].
MERTZ, J ;
DEBUISSCHERT, T ;
HEIDMANN, A ;
FABRE, C ;
GIACOBINO, E .
OPTICS LETTERS, 1991, 16 (16) :1234-1236
[10]   2-COLOR SQUEEZING AND SUB-SHOT-NOISE SIGNAL RECOVERY IN DOUBLY RESONANT OPTICAL PARAMETRIC OSCILLATORS [J].
NABORS, CD ;
SHELBY, RM .
PHYSICAL REVIEW A, 1990, 42 (01) :556-559