An electroabsorption modulator module for digital and analog applications

Kaneko, S.; Noda, Masaki; Miyazaki, Yasunori; Watanabe, Hiroshi; Kasahara, Kota; Tajime, T.

doi:10.1109/50.754798

Cited by 44 publications

(13 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the purpose of optical regeneration and wavelength conversion using an EAM, it is useful to consider a twotone signal with the frequencies f 1 and f 2 . The magnitude at the output of the EAM will be the combination of the f 1 and f 2 signals, composite second order (CSO), f 1 AE f 2 , composite triple beat (CBT), 2f 1 AE f 2 [42] and the higher orders respectively. Thus, for the voltage-dependent transfer function, it can be assumed that total applied voltage to an EAM is given by V ¼ V b þ V m , where the V b is the dc bias voltage and V m is modulating voltage.…”

Section: Electroabsorption Modulator Chirp Analytical Modelmentioning

confidence: 99%

“…Thus, for the voltage-dependent transfer function, it can be assumed that total applied voltage to an EAM is given by V ¼ V b þ V m , where the V b is the dc bias voltage and V m is modulating voltage. The power transfer function of the EAM can be described by the Taylor series for bias voltage as [41,42]:…”

Section: Electroabsorption Modulator Chirp Analytical Modelmentioning

confidence: 99%

See 1 more Smart Citation

Optimising negative chirp of an electroabsorption modulator for use in high‐speed optical networks

Jamro

Senior

2006

Trans Emerging Tel Tech

View full text Add to dashboard Cite

SUMMARYOptical networks using singlemode fiber rely on negative chirp to improve the transmission performance. In particular for an electroabsorption modulator (EAM) optimal chirp control is required when it is used to achieve various network functions in high-speed optical networks. An approach to modelling the negative chirp for the EAM is presented that is suitable to apply to a cross-absorption modulation scheme. A novel feature of this modelling process is that it allows cubic polynomials to incorporate the nonlinear coefficients of chirp describing the a-parameter related to the nonlinear transmission coefficients. In addition to the twotone signal parameters (i.e. bias and modulating signal voltages), the model also includes wavelengthtemperature-dependent absorption variation and the effects associated with the length of the device. It therefore enables accurate determination for the values of the nonlinear coefficients of the chirp responsible for the negative chirp of an EAM. Using this model an optimised range of AE 0.5 is obtained for the nonlinear coefficients of the chirp to exhibit negative chirp for specific values of nonlinear transmission coefficients (within a range of À10 and 2) at a reverse bias voltage of less than 2 V. Since negative chirp optimisation of an EAM can minimise the unwanted effects of dispersion on a singlemode fiber in highspeed optical networks an improvement of performance without employing expensive dispersion compensation management techniques can be achieved.

show abstract

Section: Electroabsorption Modulator Chirp Analytical Modelmentioning

confidence: 99%

Section: Electroabsorption Modulator Chirp Analytical Modelmentioning

confidence: 99%

Optimising negative chirp of an electroabsorption modulator for use in high‐speed optical networks

Jamro

Senior

2006

Trans Emerging Tel Tech

View full text Add to dashboard Cite

show abstract

“…N ANALOG fiber-optic links, semiconductor multiple quantum-well traveling-wave electroabsorption modulators (TWEAMs) have been widely studied due to their small size, large bandwidth, low driving voltage, and potential for monolithic integration with laser and amplifier [1], [2]. Spurious-free dynamic range (SFDR), link gain (G), and noise figure are the main figures of merit that quantify the analog performances of the device [2].…”

mentioning

confidence: 99%

Nonlinear Properties of Traveling-Wave Electroabsorption Modulator

Shim

Liu

Piprek

et al. 2004

IEEE Photon. Technol. Lett.

View full text Add to dashboard Cite

Abstract-We report the nonlinear properties of traveling-wave electroabsorption modulators experimentally and theoretically. The saturation characteristics of the dc transfer curve give rise to the superlinear, linear, and sublinear properties of output signal levels against the input signal levels. The dynamic behavior of the transmission curves for a wide range of the input radio-frequency signal levels can be described using the dc transfer curve and the fast Fourier transform algorithm.

show abstract

“…Based on the two-level optical label, all-optical processing may be used to realize the wavelength swapping as well as the adding and dropping of the second level label. One promising all-optical processor is the electroabsorption modulator (EAM) [9], [10], which has proven to be a versatile component in ultra fast WDM and OTDM systems with its ability to perform several different functionalities, yet remaining a simple structure. Recently, various all-optical functionalities based on cross-absorption modulation (XAM) [11], [12] such as demultiplexing [13]- [15], wavelength conversion [14], [16]- [18] and all-optical regeneration [19]- [22].…”

Section: Introductionmentioning

confidence: 99%

Optical label encoding using electroabsorption modulators and investigation of chirp properties

Chi

Oxenløwe

et al. 2003

J. Lightwave Technol.

View full text Add to dashboard Cite

Abstract-A novel scheme of optical label encoding by wavelength conversion based on electroabsorption modulators (EAMs) is reported. Based on the experimental observations, the chirp properties of the wavelength-converted signal are discussed and a wide dynamic range of the chirp -parameter is found allowed. Compared with cross-gain modulation (XGM) in a semiconductor optical amplifier (SOA), the EAM has several advantages, which make it attractive for optical label encoding or other applications as a wavelength converter.

show abstract

An electroabsorption modulator module for digital and analog applications

Cited by 44 publications

References 17 publications

Optimising negative chirp of an electroabsorption modulator for use in high‐speed optical networks

Optimising negative chirp of an electroabsorption modulator for use in high‐speed optical networks

Nonlinear Properties of Traveling-Wave Electroabsorption Modulator

Optical label encoding using electroabsorption modulators and investigation of chirp properties

Contact Info

Product

Resources

About