All-optical sampling using cross-absorption modulation in electroabsorption modulator for optical performance monitor

Mori, Toshihiro; Otani, Akihito; Otani, Tomohiro

doi:10.1109/ecoc.2008.4729283

Cited by 6 publications

(2 citation statements)

References 5 publications

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“…The EAM with a reverse bias of 8 V was used as the optical sampling gate based on cross-absorption modulation (XAM). 7) The XAM output signal from the EAM was amplified by an EDFA and acquired by a digitizer with a 165-MHz bandwidth.…”

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confidence: 99%

A Simple Synchronization Method for Optical Sampling Eye Monitor

Mori

Otani

2010

Jpn. J. Appl. Phys.

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A simple software synchronization method based on spectral interpolation is proposed for an optical sampling eye-waveform monitor. A clear eye diagram was reconstructed successfully from an asynchronously sampled signal using a passively mode-locked fiber laser. The timing jitter of the reconstructed eye diagram was measured to quantify synchronization accuracy. The 0.0016 UI increase in rms timing jitter caused by synchronization error is negligible.

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confidence: 99%

A Simple Synchronization Method for Optical Sampling Eye Monitor

Mori

Otani

2010

Jpn. J. Appl. Phys.

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“…An optical sampling gate [1,2,3] with short gating width and high extinction ratio is required for an OPM with high temporal resolution and signal-to-noise ratio. The electro-absorption modulator (EAM) based on cross absorption modulation (XAM) is a leading candidate for a compact optical sampling gate with high cost efficiency [4,5,6,7,8]. A standard EAM for light source has MQW structure absorption layer because of its the low operating voltage and highly efficient characteristics [9,10], however it has drawbacks, such as high polarization dependency and narrow operating wavelength bandwidth for gating device.…”

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confidence: 99%

Optical gating width variability using electrode parasitic capacitance

Yamada

Nagashima

Onuki

et al. 2016

IEICE Electron. Express

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Abstract:We developed an optical gating device using a bulk layer and high mesa ridge/BH hybrid structure with input power of 14.5 dBm for optical communication performance monitoring. The shortest gating width of 3.9 ps was obtained in all-optical sampling experiments. However, gated waveform distortion occurred due to superfluous carriers in absorption layer in case of low bias voltage and optical pumping power condition. We have successfully improved waveform quality by extension electric parasitic capacitance to draw out it, thus variable gating width depending on transmission speed has been realized.

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