V. R. Supradeepa, C. M. Long, R. Wu, F. Ferdous, E.
Hamidi, D. E. Leaird, A. M. Weiner, "Comb-based radiofrequency photonic filters
with rapid tunability and high selectivity," Nature Photon. 6, 186-194
(2012).

J. Lloret, G. Morthier, F. Ramos, S. Sales, D. Van
Thourhout, T. Spuesens, N. Olivier, J.-M. Fédéli, J. Capmany, "Broadband microwave
photonic fully tunable filter using a single heterogeneously integrated
III-V/SOI-microdisk-based phase shifter," Opt. Exp. 20, 10796-10806
(2012).

M. Rius, J. Mora, M. Bolea, J. Capmany, "Harmonic
distortion in microwave photonic filters," Opt. Exp. 20, 8871-8876
(2012).

J. Sancho, N. Primerov, S. Chin, Y. Antman, A. Zadok,
S. Sales, L. Thévenaz, "Tunable and reconfigurable multi-tap microwave photonic
filter based on dynamic Brillouin gratings in fibers," Opt. Exp. 20, 6157-6162
(2012).

Z. Li, Y. Han, H. Chi, X. Zhang, J. P. Yao, "A
continuously tunable microwave fractional Hilbert transformer based on a
nonuniformly-spaced photonic microwave delay-line filter," J. Lightw. Technol. 30,
1948-1953 (2012).

M. Bolea, J. Mora, B. Ortega, J. Capmany, "Nonlinear
dispersion-based incoherent photonic processing for microwave pulse generation
with full reconfigurability," Opt. Exp. 20, 6278-6736 (2012).

Y. Han, Z. Li, J. P. Yao, "A microwave bandpass
differentiator implemented based on a nonuniformly-spaced photonic microwave
delay-line filter," J. Lightw. Technol. 29, 3470-3475 (2011).

M. Bolea, J. Mora, B. Ortega, J. Capmany, "Optical
arbitrary waveform generator using incoherent microwave photonic filtering," IEEE
Photon. Technol. Lett. 23, 618-620 (2011).

J. P. Yao, "Photonic generation of microwave arbitrary
waveforms," Opt. Commun. 284, 3723-3736 (2011).

A. Zadok, A. Eyal, M. Tur, "Stimulated Brillouin
scattering slow light in optical fibers," Appl. Opt. 50, E38-E49
(2011).

J. Sancho, J. Lloret, I. Gasulla, S. Sales, J.
Capmany, "Fully tunable 360° microwave photonic phase shifter based on a
single semiconductor optical amplifier," Opt. Exp. 19, 17421-17426
(2011).

S.-C. Chan, Q. Liu, Z. Wang, K. S. Chiang, "Tunable
negative-tap photonic microwave filter based on a cladding-mode coupler and an
optically injected laser of large detuning," Opt. Exp. 19, 12045-12052
(2011).

I. Gasulla, J. Capmany, "Analytical model and figures
of merit for filtered microwave photonic links," Opt. Exp. 19, 19758-19774
(2011).

M. Burla, D. Marpaung, L. Zhuang, C. Roeloffzen, M. R.
Khan, A. Leinse, M. Hoekman, R. Heideman, "On-chip CMOS compatible reconfigurable
optical delay line with separate carrier tuning for microwave photonic signal
processing," Opt. Exp. 19, 21475-21484 (2011).

L. Zhuang, D. Marpaung, M. Burla, W. Beeker, A.
Leinse, C. Roeloffzen, "Low-loss, high-index-contrast Si_{3}N_{4}/SiO_{2}
optical waveguides for optical delay lines in microwave photonics signal
processing," Opt. Exp. 19, 23162-23170 (2011).

J. Lloret, J. Sancho, M. Pu, I. Gasulla, K. Yvind, S.
Sales, J. Capmany, "Tunable complex-valued multi-tap microwave photonic filter
based on single silicon-on-insulator microring resonator," Opt. Exp. 19,
12402-12407 (2011).

M. H. Song, C. M. Long, R. Wu, D. Seo, D. E. Leaird,
A. M. Weiner, "Reconfigurable and tunable flat-top microwave photonic filters
utilizing optical frequency comb," IEEE Photon. Technol. Lett. 23, 1618-1620
(2011).

E. J. Norberg, R. S. Guzzon, J. S. Parker, L. A.
Johansson, L. A. Coldren, "Programmable photonic microwave filters monolithically
integrated in InP/InGaAsP," J. Lightw. Technol. 29, 1611-1619
(2011).

R. S. Guzzon, E. J. Norberg, J. S. Parker, L. A.
Johansson, L. A. Coldren, "Integrated InP-InGaAsP tunable coupled ring optical
bandpass filters with zero insertion loss," Opt. Exp. 19, 7816-7826
(2011).

T. X. H. Huang, X. Yi, R. A. Minasian, "Single
passband microwave photonic filter using continuous-time impulse response," Opt.
Exp. 19, 6231-6242 (2011).

W. Zhang, R. A. Minasian, "Widely tunable
single-passband microwave photonic filter based on stimulated Brillouin
scattering," IEEE Photon. Technol. Lett. 23, 1775-1777 (2011).

E. H. W. Chan, "Cascaded multiple infinite impulse
response optical delay line signal processor without coherent interference," J.
Lightw. Technol. 29, 1401-1406 (2011).

E. H. W. Chan, R. A. Minasian, "High-resolution
tunable RF/microwave photonic notch filter with low-noise performance," J. Lightw.
Technol. 29, 3304-3309 (2011).

E. H. W. Chan, R. A. Minasian, "Coherence-free
high-resolution RF/microwave photonic bandpass filter with high skirt selectivity
and high stopband attenuation," J. Lightw. Technol. 28, 1646-1651
(2010).

J. Palaci, G. E. Villanueva, J. V. Galan, J. Marti, B.
Vidal, "Single bandpass photonic microwave filter based on a notch ring
resonator," IEEE Photon. Technol. Lett. 22, 1276-1278 (2010).

J. Palací, P. Pérez-Millán, G. E. Villanueva, J. L.
Cruz, M. V. Andrés, J. Martí, B. Vidal, "Tunable photonic microwave filter with
single bandpass based on a phase-shifted fiber Bragg grating," IEEE Photon.
Technol. Lett. 22, 1467-1469 (2010).

T. X. H. Huang, X. Yi, R. A. Minasian, "Microwave
photonic filters with programmable bipolar coefficients based on π-phase
inversion of DSB sidebands," Electron. Lett. 46, 1609-1610 (2010).

H.-W. Chen, A. W. Fang, J. D. Peters, Z. Wang, J.
Bovington, D. Liang, J. E. Bowers, "Integrated microwave photonic filter on a
hybrid silicon platform," IEEE Trans. Microw. Theory Tech. 58, 3213-3219
(2010).

P. Dong, N. N. Feng, D. Feng, W. Qian, H. Liang, D. C.
Lee, B. J. Luff, T. Banwell, A. Agarwal, P. Toliver, R. Menendez, T. K. Woodward,
M. Asghari, "GHz-bandwidth optical filters based on high-order silicon ring
resonators," Opt. Exp. 18, 23784-23789 (2010).

N. N. Feng, P. Dong, D. Feng, W. Qian, H. Liang, D. C.
Lee, J. B. Luff, A. Agarwal, T. Banwell, R. Menendez, P. Toliver, T. K. Woodward,
M. Asghari, "Thermally-efficient reconfigurable narrowband RF-photonic filter,"
Opt. Exp. 18, 24648-24653 (2010).

E. Hamidi, D. E. Leaird, A. M. Weiner, "Tunable
programmable microwave photonic filters based on an optical frequency comb," IEEE
Trans. Microw. Theory Tech. 58, 3269-3278 (2010).

E. J. Norberg, R. S. Guzzon, S. C. Nicholes, J. S.
Parker, L. A. Coldren, "Programmable photonic lattice filters in InGaAsP-InP,"
Photon. Technol. Lett. 22, 109-111 (2010).

D. Marpaung, C. Roeloffzen, A. Leinse, M. Hoekman, "A
photonic chip based frequency discriminator for a high performance microwave
photonic link," Opt. Exp. 18, 27359-27370 (2010).

J. Sancho, S. Chin, M. Sagues, A. Loayssa, J. Lloret,
I. Gasulla, S. Sales, L. Thévenaz, J. Capmany, "Dynamic microwave photonic filter
using separate carrier tuning based on stimulated Brillouin scattering in fibers,"
IEEE Photon. Technol. Lett. 22, 1753-1755 (2010).

S. Chin, L. Thévenaz, J. Sancho, S. Sales, J. Capmany,
P. Berger, J. Bourderionnet, D. Dolfi, "Broadband true time delay for microwave
signal processing, using slow light based on stimulated Brillouin scattering in
optical fibers," Opt. Exp. 18, 22599-22613 (2010).

M. Bolea, J. Mora, B. Ortega, J. Capmany, "Photonic
arbitrary waveform generation applicable to multiband UWB communications," Opt.
Exp. 18, 26259-26267 (2010).

M. Bolea, J. Mora, B. Ortega, J. Capmany, "Flexible
monocycle UWB generation for reconfigurable access networks," IEEE Photon.
Technol. Lett. 22, 878-880 (2010).

X. Yi, T. X. H. Huang, R. A. Minasian, "Tunable and
reconfigurable photonic signal processor with programmable all-optical complex
coefficients," IEEE Trans. Microw. Theory Tech. (Special Issue Microw. Photon.)
58, 3088-3093 (2010).

W. Xue, S. Sales, J. Capmany, J. Mørk, "Wideband
360° microwave photonic phase shifter based on slow light in semiconductor
optical amplifiers," Opt. Exp. 18, 6156-6163 (2010).

S. Sales, W. Xue, J. Mork, I. Gasulla, "Slow and fast
light effects and their applications to microwave photonics using semiconductor
optical amplifiers," IEEE Trans. Microw. Theory and Tech. 58, 3022-3038
(2010).

Y. Park, J. Azaña, "Optical signal processors based on
a time-spectrum convolution," Opt. Lett. 35, 796-798 (2010).

T. Chen, X. Yi, T. X. H. Huang, R. A. Minasian,
"Multiple-bipolar-tap tunable spectrum sliced microwave photonic filter," Opt.
Lett. 35, 3934-3936 (2010).

Y. Park, M. H. Asghari, R. Helsten, J. Azaña,
"Implementation of broadband microwave arbitrary-order time differential operators
using a reconfigurable incoherent photonic processor," IEEE Photon. J. 2,
1040-1050 (2010).

Y. Park, J. Azaña, "Ultrahigh dispersion of broadband
microwave signals by incoherent photonic processing," Opt. Exp. 18, 14752-14761
(2010).

F. Grassi, J. Mora, B. Ortega, J. Capmany, "Radio over
fiber transceiver employing phase modulation of an optical broadband source," Opt.
Exp. 18, 21750-21756 (2010).

S. Pan, J. P. Yao, "Switchable UWB pulses generation
using a phase modulator and a reconfigurable asymmetric Mach-Zehnder
interferometer," Opt. Lett. 34, 160-162 (2009).

W. Xue, S. Sales, J. Capmany, J. Mørk, "Microwave
phase shifter with controllable power response based on slow- and fast-light
effects in semiconductor optical amplifiers," Opt. Lett. 34, 929-931
(2009).

S. Pan, J. P. Yao, "Optical generation of polarity-
and shape- switchable UWB pulses using a chirped intensity modulator and a
first-order asymmetric Mach-Zehnder interferometer," Opt. Lett. 34, 1312-1314
(2009).

C. Wang, J. P. Yao, "Chirped microwave pulse
compression using a photonic microwave filter with a nonlinear phase response,"
IEEE Trans. Microw. Theory Tech. 57, 496-504 (2009).

Y. Dai, J. P. Yao, "Chirped microwave pulse generation
using a photonic microwave delay-line filter with a quadratic phase response,"
IEEE Photon. Technol. Lett. 21, 569-571 (2009).

Y. Dai, J. P. Yao, "Microwave correlator based on a
nonuniformly spaced photonic microwave delay-line filter," IEEE Photon. Technol.
Lett. 21, 969-971 (2009).

E. Hamidi, A. M. Weiner, "Post-compensation of
ultra-wideband antenna dispersion using microwave photonic phase filters and its
applications to UWB systems," IEEE Trans. Microw. Theory Tech. 57, 890-898
(2009).

P. A. Morton, J. B. Khurgin, "Microwave photonic delay
line with separate tuning of the optical carrier," IEEE Photon. Technol. Lett. 21,
1686-1688 (2009).

W. Xue, S. Sales, J. Mork, J. Capmany, "Widely tunable
microwave photonic notch filter based on slow and fast light effects," IEEE
Photon. Technol. Lett. 21, 167-169 (2009).

M. Kahn, H. Shen, Y. Xuan, L. Zhao, S. Xiao, D.
Leaird, A. Weiner, M. Qi, "Ultrabroad-bandwidth arbitrary radiofrequency waveform
generation with a silicon photonic chip-based spectral shaper," Nature Photon. 4,
117-122 (2009).

H. Mu, J. P. Yao, "Polarity- and shape-switchable UWB
pulse generation based on a photonic microwave delay-line filter with a negative
tap coefficient," IEEE Photon. Technol. Lett. 21, 1253-1255
(2009).

M. Bolea, J. Mora, B. Ortega, J. Capmany, "Optical UWB
pulse generator using an N tap microwave photonic filter and phase inversion
adaptable to different pulse modulation formats," Opt. Exp. 17, 5023-5032
(2009).

J. P. Yao, "Microwave photonics," J. Lightw. Technol.
27, 314-335 (2009).

R. W. Boyd, D. J. Gauthier, "Controlling the velocity
of light pulses," Science 326, 1074-1077 (2009).

J. M. Wyrwas, M. C. Wu, "Dynamic range of frequency
modulated direct-detection analog fiber optic links," J. Lightw. Technol. 27,
5552-5562 (2009).

M. Rasras, K. Tu, D. Gill, Y. Chen, A. White, S.
Patel, A. Pomerene, D. Carothers, J. Beattie, M. Beals, J. Michel, L. Kimerling,
"Demonstration of a tunable microwave-photonic notch filter using low-loss silicon
ring resonators," J. Lightw. Technol. 27, 2105-2110 (2009).

E. H. W. Chan, "Suppression of coherent interference
effect in an optical delay line signal processor using a single tone phase
modulation technique," IEEE Photon. Technol. Lett. 21, 215-217
(2009).

E. H. W. Chan, R. A. Minasian, "Novel coherence-free
RF/microwave photonic bandpass filter," IEEE Photon. Technol. Lett. 21, 230-232
(2009).

J. Mora, L. R. Chen, J. Capmany, "Single bandpass
microwave photonic filter with tuning and reconfiguration capabilities," J.
Lightw. Technol. 26, 2663-2670 (2008).

M. D. Manzanedo, J. Mora, J. Capmany, "Continuously
tunable microwave photonic filter with negative coefficients using cross-phase
modulation in an SOA-MZ interferometer," IEEE Photon. Technol. Lett. 20, 526-528
(2008).

E. H. W. Chan, R. A. Minasian, "Widely tunable,
high-FSR, coherence-free microwave photonic notch filter," J. Lightw. Technol. 26,
922-927 (2008).

J. Mora, B. Ortega, J. Capmany, "Accurate control of
active recirculating structures for microwave photonics signal filtering," J.
Lightw. Technol. 26, 1626-1631 (2008).

Q. Wang, J. P. Yao, "Multitap photonic microwave
filters with arbitrary positive and negative coefficients using a polarization
modulator and an optical polarizer," IEEE Photon. Technol. Lett. 20, 78-80
(2008).

E. Hamidi, A. M. Weiner, "Phase-only matched filtering
of ultrawideband arbitrary microwave waveforms via optical pulse shaping," J.
Lightw. Technol. 26, 2355-2363 (2008).

M. Sagues, R. G. Olcina, A. Loayssa, S. Sales, J.
Capmany, "Multi-tap complex-coefficient incoherent microwave photonic filters
based on optical single-sideband modulation and narrow band optical filtering,"
Opt. Exp. 16, 295-303 (2008).

Y. Dai, J. P. Yao, "Nonuniformly-spaced photonic
microwave delay-line filter," Opt. Exp. 16, 4713-4718 (2008).

K. Y. Song, W. Zou, Z. He, K. Hotate, "All-optical
dynamic grating generation based on Brillouin scattering in
polarization-maintaining fiber," Opt. Lett. 33, 926-928 (2008).

W. Xue, Y. Chen, F. Öhman, S. Sales, J. Mørk,
"Enhancing light slow-down in semiconductor optical amplifiers by optical
filtering," Opt. Lett. 33, 1084-1086 (2008).

F. Ohman, K. Yvind, J. Mork, "Slow light in a
semiconductor waveguide for true-time delay applications in microwave photonics,"
IEEE Photon. Technol. Lett. 19, 1145-1147 (2007).

Y. Yan, J. P. Yao, "A tunable photonic microwave
filter with a complex coefficient using an optical RF phase shifter," IEEE Photon.
Technol. Lett. 19, 1472-1474 (2007).

J. P. Yao, Q. Wang, "Photonic microwave bandpass
filter with negative coefficients using a polarization modulator," IEEE Photon.
Technol. Lett. 19, 644-646 (2007).

M. Sagues, A. Loayssa, J. Capmany, "Multitap
complex-coefficient incoherent microwave photonic filters based on stimulated
Brillouin scattering," IEEE Photon. Technol. Lett. 19, 1194-1197
(2007).

J. Capmany, D. Novak, "Microwave photonics combines
two worlds," Nature Photon. 1, 319-330 (2007).

A. J. Seeds, K. J. Williams, "Microwave photonics," J.
Lightw. Technol. 24, 4628-4641 (2006).

A. Loayssa, F. J. Lahoz, "Broad-band RF photonic
phase-shifter based on stimulated Brillouin scattering and single-sideband
modulation," IEEE Photon. Technol. Lett. 18, 208-210 (2006).

A. Loayssa, J. Capmany, M. Sagues, J. Mora,
"Demonstration of incoherent microwave photonic filters with all-optical complex
coefficients," IEEE Photon. Technol. Lett. 18, 1744-1746 (2006).

J. Capmany, B. Ortega, D. Pastor, "A tutorial on
microwave photonic filters," J. Lightw. Technol. 24, 201-229
(2006).

R. A. Minasian, "Photonic signal processing of
microwave signals," IEEE Trans. Microw. Theory Tech. 54, 832-846
(2006).

J. Mora, J. Capmany, A. Loayssa, D. Pastor, "Novel
technique for implementing incoherent microwave photonic filters with negative
coefficients using phase modulation and single sideband selection," IEEE Photon.
Technol. Lett. 18, 1943-1945 (2006).

S. Xiao, A. M. Weiner, "Programmable photonic
microwave filters with arbitrary ultra wideband phase response," IEEE Trans.
Microw. Theory Tech. 54, 4002-4008 (2006).

J. Mora, B. Ortega, A. Díez, J. L. Cruz, M. V. Andrés,
J. Capmany, D. Pastor, "Photonic microwave tunable single bandpass filter based on
a Mach-Zehnder interferometer," J. Lightw. Technol. 24, 2500-2509
(2006).

J. Capmany, "On the cascade of incoherent
discrete-time microwave photonic filters," J. Lightw. Technol. 24, 2564-2578
(2006).

J. Capmany, J. Mora, B. Ortega, D. Pastor, "High Q
microwave photonic filter using a tuned modulator," Opt. Lett. 2291-2301
(2005).

B. Ortega, J. Mora, J. Capmany, D. Pastor, R.
Garcia-Olcina, "Highly selective microwave photonic filters based on an active
optical recirculating cavity and tuned modulator hybrid structure," Electron.
Lett. 41, 1133-1135 (2005).

J. Capmany, J. Mora, B. Ortega, D. Pastor,
"High-quality low-cost online-reconfigurable microwave photonic transversal filter
with positive and negative coefficients," IEEE Photon. Technol. Lett. 17,
2730-2732 (2005).

J. Wang, F. Zeng, J. P. Yao, "All-optical microwave
bandpass filter with negative coefficients based on PM-IM conversion," IEEE
Photon. Technol. Lett. 17, 2176-2178 (2005).

J. Capmany, B. Ortega, D. Pastor, S. Sales,
"Discrete-time optical processing of microwave signals," J. Lightw. Technol. 23,
702-723 (2005).

F. Zeng, J. Wang, J. P. Yao, "All-optical microwave
bandpass filter with negative coefficients based on a phase modulator and linearly
chirped fiber Bragg gratings," Opt. Lett. 30, 2203-2205 (2005).

T. X. H. Huang, X. Yi, R. A. Minasian, "Microwave
photonic filters with programmable bipolar coefficients based on π-phase
inversion of DSB sidebands," Electron. Lett. 46, 1609-1610 (2010).

B. Ortega, J. Mora, J. Capmany, D. Pastor, R.
Garcia-Olcina, "Highly selective microwave photonic filters based on an active
optical recirculating cavity and tuned modulator hybrid structure," Electron.
Lett. 41, 1133-1135 (2005).

Y. Park, M. H. Asghari, R. Helsten, J. Azaña,
"Implementation of broadband microwave arbitrary-order time differential operators
using a reconfigurable incoherent photonic processor," IEEE Photon. J. 2,
1040-1050 (2010).

Y. Dai, J. P. Yao, "Microwave correlator based on a
nonuniformly spaced photonic microwave delay-line filter," IEEE Photon. Technol.
Lett. 21, 969-971 (2009).

Y. Dai, J. P. Yao, "Chirped microwave pulse generation
using a photonic microwave delay-line filter with a quadratic phase response,"
IEEE Photon. Technol. Lett. 21, 569-571 (2009).

M. Bolea, J. Mora, B. Ortega, J. Capmany, "Flexible
monocycle UWB generation for reconfigurable access networks," IEEE Photon.
Technol. Lett. 22, 878-880 (2010).

H. Mu, J. P. Yao, "Polarity- and shape-switchable UWB
pulse generation based on a photonic microwave delay-line filter with a negative
tap coefficient," IEEE Photon. Technol. Lett. 21, 1253-1255
(2009).

M. Bolea, J. Mora, B. Ortega, J. Capmany, "Optical
arbitrary waveform generator using incoherent microwave photonic filtering," IEEE
Photon. Technol. Lett. 23, 618-620 (2011).

J. Capmany, J. Mora, B. Ortega, D. Pastor,
"High-quality low-cost online-reconfigurable microwave photonic transversal filter
with positive and negative coefficients," IEEE Photon. Technol. Lett. 17,
2730-2732 (2005).

E. H. W. Chan, "Suppression of coherent interference
effect in an optical delay line signal processor using a single tone phase
modulation technique," IEEE Photon. Technol. Lett. 21, 215-217
(2009).

E. H. W. Chan, R. A. Minasian, "Novel coherence-free
RF/microwave photonic bandpass filter," IEEE Photon. Technol. Lett. 21, 230-232
(2009).

M. D. Manzanedo, J. Mora, J. Capmany, "Continuously
tunable microwave photonic filter with negative coefficients using cross-phase
modulation in an SOA-MZ interferometer," IEEE Photon. Technol. Lett. 20, 526-528
(2008).

J. Palaci, G. E. Villanueva, J. V. Galan, J. Marti, B.
Vidal, "Single bandpass photonic microwave filter based on a notch ring
resonator," IEEE Photon. Technol. Lett. 22, 1276-1278 (2010).

J. Palací, P. Pérez-Millán, G. E. Villanueva, J. L.
Cruz, M. V. Andrés, J. Martí, B. Vidal, "Tunable photonic microwave filter with
single bandpass based on a phase-shifted fiber Bragg grating," IEEE Photon.
Technol. Lett. 22, 1467-1469 (2010).

W. Zhang, R. A. Minasian, "Widely tunable
single-passband microwave photonic filter based on stimulated Brillouin
scattering," IEEE Photon. Technol. Lett. 23, 1775-1777 (2011).

M. H. Song, C. M. Long, R. Wu, D. Seo, D. E. Leaird,
A. M. Weiner, "Reconfigurable and tunable flat-top microwave photonic filters
utilizing optical frequency comb," IEEE Photon. Technol. Lett. 23, 1618-1620
(2011).

A. Loayssa, F. J. Lahoz, "Broad-band RF photonic
phase-shifter based on stimulated Brillouin scattering and single-sideband
modulation," IEEE Photon. Technol. Lett. 18, 208-210 (2006).

A. Loayssa, J. Capmany, M. Sagues, J. Mora,
"Demonstration of incoherent microwave photonic filters with all-optical complex
coefficients," IEEE Photon. Technol. Lett. 18, 1744-1746 (2006).

M. Sagues, A. Loayssa, J. Capmany, "Multitap
complex-coefficient incoherent microwave photonic filters based on stimulated
Brillouin scattering," IEEE Photon. Technol. Lett. 19, 1194-1197
(2007).

P. A. Morton, J. B. Khurgin, "Microwave photonic delay
line with separate tuning of the optical carrier," IEEE Photon. Technol. Lett. 21,
1686-1688 (2009).

J. Sancho, S. Chin, M. Sagues, A. Loayssa, J. Lloret,
I. Gasulla, S. Sales, L. Thévenaz, J. Capmany, "Dynamic microwave photonic filter
using separate carrier tuning based on stimulated Brillouin scattering in fibers,"
IEEE Photon. Technol. Lett. 22, 1753-1755 (2010).

F. Ohman, K. Yvind, J. Mork, "Slow light in a
semiconductor waveguide for true-time delay applications in microwave photonics,"
IEEE Photon. Technol. Lett. 19, 1145-1147 (2007).

W. Xue, S. Sales, J. Mork, J. Capmany, "Widely tunable
microwave photonic notch filter based on slow and fast light effects," IEEE
Photon. Technol. Lett. 21, 167-169 (2009).

Y. Yan, J. P. Yao, "A tunable photonic microwave
filter with a complex coefficient using an optical RF phase shifter," IEEE Photon.
Technol. Lett. 19, 1472-1474 (2007).

J. Wang, F. Zeng, J. P. Yao, "All-optical microwave
bandpass filter with negative coefficients based on PM-IM conversion," IEEE
Photon. Technol. Lett. 17, 2176-2178 (2005).

J. Mora, J. Capmany, A. Loayssa, D. Pastor, "Novel
technique for implementing incoherent microwave photonic filters with negative
coefficients using phase modulation and single sideband selection," IEEE Photon.
Technol. Lett. 18, 1943-1945 (2006).

J. P. Yao, Q. Wang, "Photonic microwave bandpass
filter with negative coefficients using a polarization modulator," IEEE Photon.
Technol. Lett. 19, 644-646 (2007).

Q. Wang, J. P. Yao, "Multitap photonic microwave
filters with arbitrary positive and negative coefficients using a polarization
modulator and an optical polarizer," IEEE Photon. Technol. Lett. 20, 78-80
(2008).

S. Sales, W. Xue, J. Mork, I. Gasulla, "Slow and fast
light effects and their applications to microwave photonics using semiconductor
optical amplifiers," IEEE Trans. Microw. Theory and Tech. 58, 3022-3038
(2010).

R. A. Minasian, "Photonic signal processing of
microwave signals," IEEE Trans. Microw. Theory Tech. 54, 832-846
(2006).

S. Xiao, A. M. Weiner, "Programmable photonic
microwave filters with arbitrary ultra wideband phase response," IEEE Trans.
Microw. Theory Tech. 54, 4002-4008 (2006).

H.-W. Chen, A. W. Fang, J. D. Peters, Z. Wang, J.
Bovington, D. Liang, J. E. Bowers, "Integrated microwave photonic filter on a
hybrid silicon platform," IEEE Trans. Microw. Theory Tech. 58, 3213-3219
(2010).

E. Hamidi, D. E. Leaird, A. M. Weiner, "Tunable
programmable microwave photonic filters based on an optical frequency comb," IEEE
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