Digital pulse position modulation over optical fibres with avalanche photodiode receivers

Pires, J.J.O.; Rocha, José F.

doi:10.1049/ip-j.1986.0053

Cited by 14 publications

(13 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1(b), the influence of IFWM and IXPM becomes more explicit. possible time slots in every n T time interval [7]. Fig.…”

Section: Nonlinearitiesmentioning

confidence: 99%

“…As a family member of digital transmission schemes, PPM is manipulated by restructuring the number of "1"s as well as reallocating the positions of "1"s of the data stream depend on different PPM semantics [7] [8], therefore, it provides us a chance to break the interactions of the optical adjacent pulses (typically pulses are represented by "1"s). Meanwhile, as the implementation of PPM is based on the pulse shifting to a certain position within the PPM symbol time period, thus, it is very similar to the typical OTDM implementation, where subchannel signals must be shifted with a fixed time period in order to have multiple sub-channel signal multiplexed into a high-bit-rate channel.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Roles of pulse position modulation on intrachannel nonlinearities affected high-bit-rate optic fiber channel

Linghao

Takala

2004

2004 IEEE International Conference on Communications (IEEE Cat. No.04CH37577)

View full text Add to dashboard Cite

A high-bit-rate optic fiber system may be established by multiplexing several low-bit-rate sub-channel signals into a high-bit-rate single channel depend on optical time division multiplexing (OTDM) technique. Because the influence of the third order dispersion (TOD) can not be neglected anymore inside such a high-bit-rate single channel, therefore the intrachannel nonlinear effects, such as self phase modulation (SPM), inter-pulse cross phase modulation (IXPM) and inter-bit four wave mixing (IFWM) must be considered. SPM may be suppressed sufficiently when pre-broadening technique is adopted, and in this case, the IXPM as well as IFWM become the main factors altering the system performance. Pulse position modulation (PPM) is potentially capable of suppressing IXPM and IFWM because of its ability of breaking the resonant of consecutive adjacent pulses and adding guard interval to transmitted pulse sequence. Meanwhile, if we bring the PPM essential capability of increasing transmission capacity into play, then a PPM-OTDM mechanism may be built up, where PPM may act a double role for both suppressing the intra-channel nonlinearities as well as increase the transmission capacity on general OTDM system.

show abstract

“…1(b), the influence of IFWM and IXPM becomes more explicit. possible time slots in every n T time interval [7]. Fig.…”

Section: Nonlinearitiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Roles of pulse position modulation on intrachannel nonlinearities affected high-bit-rate optic fiber channel

Linghao

Takala

2004

2004 IEEE International Conference on Communications (IEEE Cat. No.04CH37577)

View full text Add to dashboard Cite

show abstract

“…In [8] and in other formulations m, is taken to be unity which implies the use of polarisation filtering. We further have (6) where N 0 = n sp (G-l)ln) + GS n (7) is the optical noise PSD (ASE plus amplified background) per polarised spatial mode, and = ^jGP sig (t)dt(e s -l)…”

Section: Theoretical Analysismentioning

confidence: 99%

“…The analysis here is based upon the application of a Chernoff bound (CB) [6] to the error probability which is achievable via a moment generating function (MGF) formulation developed by Personick [7] for optically preamplified receivers. The bound is applied in a similar way to that in [8] for optical fibre PPM with APD receivers. This analysis may apply equally to erbium doped fibre amplifiers (EDFAs) and semiconductor laser amplifiers (SLAs).…”

Section: Introductionmentioning

confidence: 99%

A Moment Generating Function Formulation for an Optically Preamplified PPM Intersatellite System

Cryan¹,

Phillips²,

Senior³

1996

Journal of Optical Communications

View full text Add to dashboard Cite

A scheme for the utilisation of optically preamplified pulse position modulation (PPM) receivers in intersatellite laser communications is presented. To facilitate higher bit-rate operation an analysis is presented for a PPM system employing a receiver which integrates over a time slot and compares the result with a fixed threshold. When operating at the STM-1 bit-rate of 155 Mbit/s and using conservative parameters our model demonstrates a possible receiver sensitivity of 50.7 photons/bit (at a BER of 10" 6 ) in the presence of background noise, indicating the potential of this receiver configuration for use in satellite communications. The analysis is facilitated by the use of a moment generating function approach which enables the use of tight upper bounds on the bit error probability to be derived using Chernoff bound (CB) techniques. We compare results obtained from this technique with those obtained by applying a Gaussian approximation (GA) and find that the GA is consistently less conservative for the cases considered (by= 0.5 dB) at a BER of IQ-6 . This nevertheless suggests a reasonable level of accuracy and such a GA could be a useful tool for obtaining a first order approximation.

show abstract

“…Garrett [9-111 has analysed digital PPM systems operating over slightly dispersive optical channels using direct detection PIN-FET receivers and coherent receivers. Pires and da Rocha [12] have extended Garretts performance and optimisation analysis to consider receivers employing avalanche photodiodes. By minimising bounds on the average error probability, they have developed a suboptimum PPM-APD receiver.…”

Section: Introductionmentioning

confidence: 99%

Optical fibre digital pulse-position-modulation assuming a Gaussian received pulse shape

Cryan

Unwin

Garrett

et al. 1990

IEE Proc. J Optoelectron. UK

View full text Add to dashboard Cite

Digital pulse position modulation over optical fibres with avalanche photodiode receivers

Cited by 14 publications

References 0 publications

Roles of pulse position modulation on intrachannel nonlinearities affected high-bit-rate optic fiber channel

Roles of pulse position modulation on intrachannel nonlinearities affected high-bit-rate optic fiber channel

A Moment Generating Function Formulation for an Optically Preamplified PPM Intersatellite System

Optical fibre digital pulse-position-modulation assuming a Gaussian received pulse shape

Contact Info

Product

Resources

About