Highly linear coherent receiver with feedback

被引：35

作者：

Chou, Hsu-Feng ^{[1
]}

Ramaswamy, Arland ^{[1
]}

Zibar, Darko ^{[1
]}

Johansson, Leif A. ^{[1
]}

Bowers, John E. ^{[1
]}

Rodwell, Mark ^{[1
]}

Coldren, Larry A. ^{[1
]}

机构：

[1] Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2007年 / 19卷 / 9-12期

关键词：

analog links; coherent communication; feedback; microwave photonics; phase-modulation;

D O I：

10.1109/LPT.2007.898811

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：

We propose and demonstrate a novel coherent receiver with feedback for high-linearity analog photonic links. In the proposed feedback receiver, a local phase modulator tracks the phase change of the signal and reduces the effective swing across the phase demodulator without reducing the transmitted signal. The signal-to-noise-ratio is thus maintained while linearity is improved. Up to 20-dB improvement in spur-free dynamic range (SFDR) is achieved experimentally. At 3.13 mA of average photocurrent per photodiode, the measured SFDR is 124.3 dB . Hz(2/3), which corresponds to an SFDR of 131.5 dB . Hz(2/3) when the link is shot-noise-limited.

引用

页码：940 / 942

页数：3

共 5 条

[1]

CHOU HF, 2006, P IEEE C COH OPT TEC

[2] Limits on the performance of RF-over-fiber links and their impact on device design [J].

Cox, CH ;

Ackerman, EI ;

Betts, GE ;

Prince, JL .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2006, 54 (02) :906-920

[3] DYNAMIC-RANGE OF COHERENT ANALOG FIBEROPTIC LINKS [J].

KALMAN, RF ;

FAN, JC ;

KAZOVSKY, LG .

JOURNAL OF LIGHTWAVE TECHNOLOGY, 1994, 12 (07) :1263-1277

[4] Analog characterization of low-voltage MQW traveling-wave electroabsorption modulators [J].

Liu, B ;

Shim, J ;

Chiu, YJ ;

Keating, A ;

Piprek, J ;

Bowers, JE .

JOURNAL OF LIGHTWAVE TECHNOLOGY, 2003, 21 (12) :3011-3019

[5] Single-chip, widely-tunable 10Gbit/s photocurrent-driven wavelength converter incorporating a monolithically integrated laser transmitter and optical receiver [J].

Sysak, M. N. ;

Raring, J. W. ;

Barton, J. S. ;

Dummer, M. ;

Tauke-Pedretti, A. ;

Poulsen, H. N. ;

Blumenthal, D. J. ;

Coldren, L. A. .

ELECTRONICS LETTERS, 2006, 42 (11) :657-658

← 1 →