Low error rate return-to-zero direct modulation of gain-switched lasers

Cahill, Michael J.; Pendock, G.J.; Sampson, David D.

doi:10.1007/bf00347648

Cited by 6 publications

(4 citation statements)

References 12 publications

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“…spectrum-sliced channels. After [44] Throughout this period, I had maintained an unhealthy interest in the properties of semiconductor lasers, especially under gain switching, and published a number of papers in this area beginning with the noise and coherence properties of Fabry-Perot lasers elegantly worked out by Robert Griffin at Kent [55], and including data transmission at high bit rates [56] and the reduction of timing jitter in gain switching by continuous-wave (CW) injection [57].…”

Section: The Photonics Research Laboratory the University Of Melbournementioning

confidence: 99%

“…The next two years were spent, firstly, clearing the pipeline of research in communications [25,41,42,48,49,51,54,56], including our CDMA review [38]. Secondly, the lab was established in 1997 -including a generous donation of equipment from the closure of the Telstra Research Labs in Melbourne, through the generosity of Rob Ayr.…”

Section: The University Of Western Australiathe Optical+biomedical Enmentioning

confidence: 99%

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Staying coherent after kent: From optical communications to biomedical optics

Sampson

2011

Photonic Sens

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In this paper, an overview of author's research is presented, commencing at the University of Kent under Prof. David A. Jackson. Early research in short optical pulses and fiber-optic delay-line digital correlators led to optical communications research in code-division multiple access networking. This research was based on broadband incoherent light, and this theme continued with research into spectrum-sliced wavelength-division multiplexing. In shifting from photonics research to biomedical optics and biophotonics in the late 1990s, the emphasis on exploiting broadband light continued with research in optical coherence tomography, amongst other topics. In addition to the research outcomes, how these outcomes were attained is described, including mention of the exceptional contributions of many of my colleagues.

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Section: The Photonics Research Laboratory the University Of Melbournementioning

confidence: 99%

Section: The University Of Western Australiathe Optical+biomedical Enmentioning

confidence: 99%

Staying coherent after kent: From optical communications to biomedical optics

Sampson

2011

Photonic Sens

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“…The first technique is based on using one GSL and two Mach-Zehnder modulators (MZMs) for external data modulation [14], whereas the second approach is based on a directly modulated (DM) GSL. The second approach uses a simpler direct modulation scheme for conversion of the electrical non-return-to-zero (NRZ) data signal to optical return-to-zero (RZ) data [15,16]. To explore the trade-off between cost, performance, and reach, the performance of the two system setups has been evaluated using experimental implementations and simulations over different fiber links by using three different configurations of a GSL diode transmitter.…”

Section: Introductionmentioning

confidence: 99%

Electro-Optical Generation and Distribution of Ultrawideband Signals Based on the Gain Switching Technique

Shams¹,

Kaszubowska-Anandarajah²,

Perry³

et al. 2010

J. Opt. Commun. Netw.

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Abstract-We demonstrate and compare the generation and distribution of pulse position modulation (PPM) ultrawideband (UWB) signals, based on two different techniques using a gain-switched laser (GSL). One uses a GSL followed by two external modulators, while the second technique employs two laser diodes gain switched (GS) using a combined signal from a pattern generator and an RF signal generator. Bit-error-rate (BER) measurements and eye diagrams for UWB signals have been measured experimentally by using the different GS transmitter configurations and various fiber transmission distances. The simulation of both systems also has been carried out to verify our obtained results, which show the suitability of employing gain switching in a UWB over fiber (UWBoF) system to develop a reliable, simple, and low-cost technique for distributing the impulse-radio UWB (IR-UWB) pulses to the receiver destination.

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“…Simpler electrical NRZ to RZ conversion for gain-switched is proposed using an electrical combiner [4]. Advantages of using the expensive electrical AND gate is the ability to study the relation between the duty cycle of electrical RZ signal and the signal quality of optical output.…”

Section: Methodsmentioning

confidence: 99%

Performance comparisons between direct NRZ and gain-switched RZ modulation on Fabry-Perot lasers

Peng

Peng²,

Chen³

et al.

2005 Pacific Rim Conference on Lasers &Amp;amp; Electro-Optics

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We firstly study the performance comparisons between direct non-return to zero and gain-switched return to zero data formats on a Fabry-Perot laser. With high speed electrical AND gate, we also investigate the relation between the pulse width of electrical drive signal and the quality of optical eye diagrams. It is found that shorter pulse width of electrical signal can completely eliminate the pattern effect and the sensitivity of RZ format is 3.8-dB better than NRZ format at data rate = 2.488-Gbps.

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Low error rate return-to-zero direct modulation of gain-switched lasers

Cited by 6 publications

References 12 publications

Staying coherent after kent: From optical communications to biomedical optics

Staying coherent after kent: From optical communications to biomedical optics

Electro-Optical Generation and Distribution of Ultrawideband Signals Based on the Gain Switching Technique

Performance comparisons between direct NRZ and gain-switched RZ modulation on Fabry-Perot lasers

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