Coherence-free cascade IIR microwave photonic filter with high Q factor

被引：3

作者：

Zhou, L. N. ^{[1
]}

Cheng, Y. J. ^{[1
]}

Xu, E. M. ^{[2
,3
]}

Sterr, U. O. ^{[4
]}

Olver, A. D. ^{[4
]}

Clarricoats, P. J. B. ^{[4
]}

机构：

[1] China Univ Geosci, Dept Phys, Wuhan 430074, Peoples R China

[2] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China

[3] Huazhong Univ Sci & Technol, Sch Optoelect Sci & Engn, Wuhan 430074, Peoples R China

[4] Queen Mary Univ London, Dept Elect Engn, London E1 4NS, England

来源：

ELECTRONICS LETTERS | 2011年 / 47卷 / 13期

关键词：

SIGNALS;

D O I：

10.1049/el.2010.3595

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：

A new high-Q infinite impulse response (IIR) microwave photonic filter is demonstrated, in which two active recirculating delay line loops based on a semiconductor optical amplifier (SOA) are cascaded. Due to cross-gain modulation in the SOA, interferences between light beams travelling along different paths are removed, ensuring stable operation and linearity of the electrical transfer function. The whole transfer function comprises a term representing a cascade response of two IIR filters, which significantly increases the free spectral range and the Q factor. The filter exhibits a Q factor of 1870 with a rejection ratio of 25 dB.

引用

页码：754 / U42

页数：2

共 50 条

[1] Coherence-free RF/Microwave Photonic Bandpass Filter with High Skirt Selectivity
Chan, E. H. W.
Minasian, R. A.
[J]. MWP: 2009 INTERNATIONAL TOPICAL MEETING ON MICROWAVE PHOTONICS, 2009, : 84 - 87
[2] Novel Coherence-Free RF/Microwave Photonic Bandpass Filter
Chan, Erwin H. W.
Minasian, Robert A.
[J]. IEEE PHOTONICS TECHNOLOGY LETTERS, 2009, 21 (1-4) : 197 - 199
[3] Widely tunable, High-FSR, coherence-free microwave photonic notch filter
Chan, Erwin H. W.
Minasian, Robert. A.
[J]. JOURNAL OF LIGHTWAVE TECHNOLOGY, 2008, 26 (5-8) : 922 - 927
[4] Tunable microwave photonic bandpass filter with high-resolution, coherence-free operation
Chan, E. H. W.
Minasian, R. A.
[J]. ELECTRONICS LETTERS, 2011, 47 (02) : 113 - +
[5] Coherence-free photonic notch filter
Chan, EHW
Minasian, RA
[J]. ELECTRONICS LETTERS, 2004, 40 (21) : 1375 - 1377
[6] Coherence-free Microwave Photonic Notch Filter with a Wide Passband and a Narrow Notch
Chan, Erwin H. W.
Minasian, Robert A.
[J]. 2008 INTERNATIONAL TOPICAL MEETINGS ON MICROWAVE PHOTONICS AND 2008 ASIA-PACIFIC MICROWAVE PHOTONICS CONFERENCE, 2008, : 39 - 42
[7] Novel coherence-free microwave photonic signal processor
Yi, Xiaoke
Minasian, Robert A.
[J]. 2008 JOINT CONFERENCE OF THE OPTO-ELECTRONICS AND COMMUNICATIONS CONFERENCE AND THE AUSTRALIAN CONFERENCE ON OPTICAL FIBRE TECHNOLOGY, VOLS 1 AND 2, 2008, : 347 - 348
[8] Switchable coherence-free microwave photonic notch filter using a pair of intensity modulators
Ning, G.
Aditya, S.
Shum, P.
Zhou, J. Q.
[J]. IEEE PHOTONICS TECHNOLOGY LETTERS, 2008, 20 (1-4) : 261 - 263
[9] Coherence-Free High-Resolution RF/Microwave Photonic Bandpass Filter With High Skirt Selectivity and High Stopband Attenuation
Chan, Erwin H. W.
Minasian, Robert A.
[J]. JOURNAL OF LIGHTWAVE TECHNOLOGY, 2010, 28 (11) : 1646 - 1651
[10] Coherence-free Switchable Microwave Photonic Filter Using a Pair of Single Drive Intensity Modulators
Ning, G.
Shum, P.
Aditya, S.
Zhou, J. Q.
Alphones, Arokiaswami
He, Miao
[J]. 2007 ASIA PACIFIC MICROWAVE CONFERENCE, VOLS 1-5, 2007, : 180 - +

← 1 2 3 4 5 →