Active WDM Filter on Dilute Nitride Quantum Well Photonic Band Gap Waveguide

Calò, Giovanna; Alexandropoulos, Dimitris; Petruzzelli, V.

doi:10.2528/pierl12072401

Cited by 13 publications

(7 citation statements)

References 20 publications

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“…In an RoF system, the cost-effective and high quality generation of high frequency mm-wave signals is a key technology that requires further development toward high-frequency bands, especially for frequencies above 40 GHz [12][13][14]. Compared with the conventional electrical method, the optical method is preferable [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Development of a New Approach for High-Quality Quadrupling Frequency Optical Millimeter-Wave Signal Generation Without Optical Filter

Al-Shareefi

Hassan

Malek

et al. 2013

PIER

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Abstract-In this paper, we propose a new approach to generate quadrupling-frequency optical millimeter-wave (mm-wave) signal with carrier suppression by using two parallel Mach-Zehnder modulators (MZMs) in Radio-over-fiber (RoF) system. Among the numerous properties of this approach, the most important is that a filterless optical mm-wave at 60 GHz with an optical sideband suppression ratio (OSSR) as high as 40 dB can be obtained when the extinction ratio of the MZM is 25 dB. Simplicity and cost-effectiveness have made this approach a compelling candidate for future wave-division-multiplexing RoF systems.Theoretical analysis is conducted to suppress the undesired optical sidebands for the high-quality generation of frequency quadrupling mm-wave signal. The simulation results show that a 60 GHz mm-wave is generated from a 15 GHz radio frequency (RF) oscillator with an OSSR as high as 40 dB and an radio frequency spurious suppression ratio (RFSSR) exceeding 35 dB without any optical or electrical filter when the extinction ratio of the MZM is 25 dB. Furthermore, the effect of the non-ideal RF-driven voltage as well as the phase difference of RF-driven signals applied to the two MZMs on OSSR and RFSSR is discussed and analyzed. Finally, we establish a RoF system through simulation to verify the transmission performance of the proposed scheme. The Q-factor performance and eye patterns are given.

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Section: Introductionmentioning

confidence: 99%

Development of a New Approach for High-Quality Quadrupling Frequency Optical Millimeter-Wave Signal Generation Without Optical Filter

Al-Shareefi

Hassan

Malek

et al. 2013

PIER

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“…In more recent years, the PhCs have offered novel possibilities for controlling [9][10][11][12] and filtering [13-16] the propagating light signals in integrated optical devices even in presence of active materials [17,18].…”

Section: Introductionmentioning

confidence: 99%

Thermal performance of photonic crystal waveguiding devices based on GaInNAs/GaInAs quantum-wells

Calò

Alexandropoulos

Petruzzelli

2014

2014 16th International Conference on Transparent Optical Networks (ICTON)

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The temperature performance of GaInNAs-GaInAs multi-quantum-well active ridge waveguides, patterned with a periodic one-dimensional grating and a defective region placed in the central layer, has been evaluated to design efficient optical active switches/modulators at the operation wavelength λ ≅ 1.289 μm. At environmental temperature T = 298 K, by properly designing the periodic grating and changing the injected current from I OFF = 0 to I ON = 11 mA, efficient switching characteristics occur in terms of crosstalk, contrast ratio, modulation depth and bandwidth. The proposed modulator preserves these high switching performances even over a wide temperature range. As an example, in the ON state we have verified that the transmittance T ON assumes values within the range 3.2 -3.6 for temperature values ranging from T = 298 K to T = 320 K, whereas T ON reduces to about 2.0 by increasing the temperature up to T = 400 K. Moreover, the full width at half maximum increases from FWHM ≅ 0.91 nm for T = 298 K to FWHM ≅ 1.15 nm for T = 400 K. INTRODUCTIONThe development of optical InP-based devices in optical access network seems to be limited from the influence of the temperature on their transmission performances. In fact, as an example, at high operating temperatures the lasing properties of the InGaAsP/inP lasers drastically worsen, mainly due to the insufficient electron confinement for the small bandgap discontinuity in the conduction band. Moreover, in relatively long-haul and high bit-rate transmissions in the optical fiber communication systems, the instability of the laser oscillation wavelength, due to the temperature changes, could increase the effects of dispersion of the optical fibers. Improvements of the lasing properties of the long-wavelength InGaAsP/inP lasers can be obtained by using strained multi-quantum layers, but the performances at high temperature is still unsatisfactory [1]. Enormous increasing of the high-temperature performance of long-wavelength lasers, can be obtained by using novel material systems based on GaInNAs [1,2]. This realizes very good electron confinement in the active region and, thanks to a large conduction band offset, leads to lasers with excellent high-temperature performance. Dilute nitrides proved advantageous in different applications in optical communication systems such as Semiconductor Optical Amplifiers (SOA) [3], optical active switches [4], vertical-cavity surface-emitting lasers (VCSELs) [5], ridge lasers [6], and disk lasers [7]. Moreover, thank to the design flexibility offered by dilute nitrides, solar cells [8] have been demonstrated.In this paper an active one-dimensional Photonic Crystal (PhC), made of a periodic one-dimensional (1-D) grating of GaInNAs-GaInAs Multi Quantum Wells (MQW) ridge waveguides, has been investigated. In more recent years, the PhCs have offered novel possibilities for controlling [9][10][11][12] and filtering [13-16] the propagating light signals in integrated optical devices even in presence of active materials [17,18].In particular,...

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“…Radio over Fiber (RoF) technique, the integration of wireless and optical system, has long been proposed as an ideal technology for solving these difficulties since it can provide many advantages such as low propagation loss, low cost, large bandwidth and high transmission performance [7,8]. In a RoF system, the cost-effective and high quality generation of high frequency MMW signals with simple implementation and low cost is a key technique that needs further development, especially for the frequency beyond 40 GHz [9][10][11][12]. The optical method is preferable over the conventional electrical method [13,14].…”

Section: Introductionmentioning

confidence: 99%

A Cost-Effective Method for High-Quality 60 GHZ Optical Millimeter Wave Signal Generation Based on Frequency Quadrupling

Al-Shareefi¹,

Idris²,

Fareq³

et al. 2013

PIER

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Abstract-In this paper, we present a cost effective method to generate a high-quality quadruple frequency optical millimeterwave (MMW) signal using an integrated dual-parallel Mach-Zehnder modulator (IDP-MZM). Not only does the method minimize the complication of the central station (CS) and its frequency demand for the devices, but the generated optical MMW signal as well has good transmission performance. By properly adjusting the direct current (DC) bias, modulation index, and using two radio frequency (RF) driving signals with 135 • phase delay, a high quality dual tone optical MMW at 60 GHz is generated from a 15 GHz RF local oscillator (LO) with optical sideband suppression ratio (OSSR) as high as 32 dB and radio frequency spurious suppression ratio (RFSSR) exceeding 33 dB without optical filter when an IDP-MZM with 30 dB extinction ratio is utilized. Furthermore, the influences of a number of non-ideal parameters, such as imperfect extinction ratio, non-ideal RF driven voltage, and phase difference of RF-driven signals applied to two subMZMs of the IDP-MZM, on OSSR are studied through simulation. Finally, we build a Radio over Fiber system through simulation, and the transmission performance of the generated optical MMW signal is

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Active WDM Filter on Dilute Nitride Quantum Well Photonic Band Gap Waveguide

Cited by 13 publications

References 20 publications

Development of a New Approach for High-Quality Quadrupling Frequency Optical Millimeter-Wave Signal Generation Without Optical Filter

Development of a New Approach for High-Quality Quadrupling Frequency Optical Millimeter-Wave Signal Generation Without Optical Filter

Thermal performance of photonic crystal waveguiding devices based on GaInNAs/GaInAs quantum-wells

A Cost-Effective Method for High-Quality 60 GHZ Optical Millimeter Wave Signal Generation Based on Frequency Quadrupling

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