Noise figure of phase-sensitive parametric amplifier using a Mach-Zehnder interferometer with lossy Kerr media and noisy pump

被引:21
作者
Imajuku, W [1 ]
Takada, A [1 ]
机构
[1] NTT Corp, Network Innovat Labs, Kanagawa 2390847, Japan
关键词
Mach-Zehnder interferometer; optical amplifiers; optical parametric amplifiers; quantum noise;
D O I
10.1109/JQE.2003.811089
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The noise figure (NF) of a phase-sensitive parametric amplifier using a nonlinear Mach-Zehnder interferometer (NMZI) with Kerr media is analyzed for amplitude-modulation signals. In the analysis, the distributed loss of the Kerr media and the excess noise of the pump light are taken into account. As for the distributed loss of the Kerr media, the quantum Langevin equation for the NMZI is derived and solved. The results elucidate a simple degradation factor in the NF representation of the amplifier. This factor implies that the NF can be less than the standard quantum limit (SQL) of 3 dB, even if the total loss of the Kerr media exceeds 3 dB. As for the excess noise of the pump light, the semi-classical small signal analysis is utilized. The results clearly indicate that the signal-to-noise ratio of the pump light must be four times higher than that of the input signal in order to realize a low-noise optical amplifier under the SQL of 3 dB.
引用
收藏
页码:799 / 812
页数:14
相关论文
共 31 条
[1]   SQUEEZING IN A FIBER INTERFEROMETER WITH A GIGAHERTZ PUMP [J].
BERGMAN, K ;
HAUS, HA ;
IPPEN, EP ;
SHIRASAKI, M .
OPTICS LETTERS, 1994, 19 (04) :290-292
[2]  
BONGRAND I, 1999, ECOC 99, V278
[3]   QUANTUM LIMITS ON NOISE IN LINEAR-AMPLIFIERS [J].
CAVES, CM .
PHYSICAL REVIEW D, 1982, 26 (08) :1817-1839
[4]   QUANTUM WIDE-BAND TRAVELING-WAVE ANALYSIS OF A DEGENERATE PARAMETRIC-AMPLIFIER [J].
CAVES, CM ;
CROUCH, DD .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1987, 4 (10) :1535-1545
[5]   REDUCTION OF QUANTUM-NOISE IN SOLITON PROPAGATION BY PHASE-SENSITIVE AMPLIFICATION [J].
DEUTSCH, IH ;
ABRAM, I .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1994, 11 (11) :2303-2313
[6]   COMPENSATION OF THE SOLITON SELF-FREQUENCY SHIFT WITH PHASE-SENSITIVE AMPLIFIERS [J].
GOEDDE, CG ;
KATH, WL ;
KUMAR, P .
OPTICS LETTERS, 1994, 19 (24) :2077-2079
[7]  
Imajuku W., 1999, OFC/IOOC'99. Optical Fiber Communication Conference and the International Conference on Integrated Optics and Optical Fiber Communications (Cat. No.99CH36322), P131, DOI 10.1109/OFC.1999.767816
[8]   Theoretical analysis of system limitation for AM-DD/NRZ optical transmission systems using in-line phase-sensitive amplifiers [J].
Imajuku, W ;
Takada, A .
JOURNAL OF LIGHTWAVE TECHNOLOGY, 1998, 16 (07) :1158-1170
[9]   Gain characteristics of coherent optical amplifiers using a Mach-Zehnder interferometer with Kerr media [J].
Imajuku, W ;
Takada, A .
IEEE JOURNAL OF QUANTUM ELECTRONICS, 1999, 35 (11) :1657-1665
[10]   Error-free operation of in-line phase-sensitive amplifier [J].
Imajuku, W ;
Takada, A .
ELECTRONICS LETTERS, 1998, 34 (17) :1673-1674