Inline coherent optical amplifier with noise figure lower than 3dB quantum limit

被引：47

作者：

Imajuku, W ^{[1
]}

Takada, A ^{[1
]}

Yamabayashi, Y ^{[1
]}

机构：

[1] NTT Network Innovat Labs, Yokosuka, Kanagawa 2390847, Japan

来源：

ELECTRONICS LETTERS | 2000年 / 36卷 / 01期

关键词：

D O I：

10.1049/el:20000032

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 first demonstration of an inline coherent optical amplifier with a noise figure which is lower than the 3dB quantum limit is presented. The amplifier is based on optical phase-sensitive amplification using a nonlinear fibre Sagnac interferometer pumped by an injection-locked semiconductor laser with a compensation phase-locked loop. A noise figure of 2.0dB with a high signal gain of 16dB has been successfully obtained.

引用

页码：63 / 64

页数：2

共 8 条

[1] QUANTUM LIMITS ON NOISE IN LINEAR-AMPLIFIERS [J].

CAVES, CM .

PHYSICAL REVIEW D, 1982, 26 (08) :1817-1839

[2] Error-free operation of in-line phase-sensitive amplifier [J].

Imajuku, W ;

Takada, A .

ELECTRONICS LETTERS, 1998, 34 (17) :1673-1674

[3]

IMAJUKU W, 1999, THEORETICAL NOISE FI, P143

[4] REDUCTION OF QUANTUM-NOISE IN OPTICAL PARAMETRIC AMPLIFICATION [J].

LEVENSON, JA ;

ABRAM, I ;

RIVERA, T ;

GRANGIER, P .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1993, 10 (11) :2233-2238

[5] GENERATION AND DETECTION OF SQUEEZED STATES OF LIGHT BY NONDEGENERATE 4-WAVE MIXING IN AN OPTICAL FIBER [J].

LEVENSON, MD ;

SHELBY, RM ;

ASPECT, A ;

REID, M ;

WALLS, DF .

PHYSICAL REVIEW A, 1985, 32 (03) :1550-1562

[6] OPTICAL AMPLIFICATION IN A NONLINEAR FIBER INTERFEROMETER [J].

MARHIC, ME ;

HSIA, CH ;

JEONG, JM .

ELECTRONICS LETTERS, 1991, 27 (03) :210-211

[7] NOISE IN AN ALGAAS SEMICONDUCTOR-LASER AMPLIFIER [J].

MUKAI, T ;

YAMAMOTO, Y .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 1982, 18 (04) :564-575

[8] Amplitude noise suppression using a high gain phase sensitive amplifier as a limiting amplifier [J].

Takada, A ;

Imajuku, W .

ELECTRONICS LETTERS, 1996, 32 (07) :677-679

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