30 Gb/s all-optical clock recovery circuit

Vlachos, K.; Theophilopoulos, G.; Hatziefremidis, Antonios; Avramopoulos, H.

doi:10.1109/68.849091

Cited by 55 publications

(20 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Self-pulsating DFB laser (Kim et al 2003;Bornholdt et al 2000), passively mode-locked laser (Attygalle et al 2001) and injection mode-locked fiber laser (Vlachos et al 2000;Hua et al 2002;Song et al 2001) have also been used to recover clock. The injection-locking scheme can be simply realized by using commercially available components and is polarization insensitive, but has pattern effect due to the long gain recovery time of the semiconductor optical amplifier (SOA).…”

Section: Introductionmentioning

confidence: 98%

40 Gbit/s all-optical clock recovery based on the injection mode-locked fiber ring laser

Lü

Wang

et al. 2007

Opt Quant Electron

View full text Add to dashboard Cite

All-optical clock recovery is a key technology in all-optical 3R (Re-timing, Re-shaping, Re-amplifying) regeneration. In this paper, we demonstrate an all-optical clock recovery circuit based on injection mode-locked fiber laser. We have successfully extracted 40 GHz optical clock pulse from 40 Gb/s pseudorandom signal. Before the injected signal goes into the ring cavity, we make it pass a Mach-Zender interferometer (MZI) firstly. And thereby the clock component in the injected signal has been increased relatively, which is benefit to the clock recovery. We obtain firstly 10 GHz clock signal with perfect waveform from 10 Gb/s pseudorandom data stream, and then we extract 40 GHz clock signal from 40 Gb/s pseudorandom signal.

show abstract

Section: Introductionmentioning

confidence: 98%

40 Gbit/s all-optical clock recovery based on the injection mode-locked fiber ring laser

Lü

Wang

et al. 2007

Opt Quant Electron

View full text Add to dashboard Cite

show abstract

“…In this paper, an actively mode-locked fiber ring based on the SOA is presented for clock recovery from a 10-Gb/s NRZ data stream. In the SOA fiber ring, which is similar to the one proposed in [8,9], a Fabry-Perot etalon has been inserted in order to stabilize mode-locking and to improve loop efficiency.…”

Section: Introductionmentioning

confidence: 99%

“…In [3,4], the NRZ data signal was directly processed by the SOA in order to extract the clock signal. Actively mode-locked fiber-ring lasers with an SOA as an active device have been proposed for clock recovery [7,8], as well as for the generation of picosecond optical pulses at high repetition rates [9]: in both cases, the SOA experiences the cross-gain modulation (XGM) nonlinear effect and, in the clock recovery, preprocessing techniques can be adopted in order to reduce the pattern effect [10]. In this paper, an actively mode-locked fiber ring based on the SOA is presented for clock recovery from a 10-Gb/s NRZ data stream.…”

Section: Introductionmentioning

confidence: 99%

Optical clock recovery from 10‐Gb/s NRZ signal

Betti

Bulli

Curti

et al. 2004

Micro & Optical Tech Letters

View full text Add to dashboard Cite

All optical clock recovery has been experimentally demonstrated by an actively mode-locked fiber ring based on the semiconductor optical amplifier (SOA) from a 10-Gb/s NRZ data stream. The system exploits the cross-gain modulation (XGM) nonlinear effect in SOA, and a Fabry-Perot etalon suitably inserted in the loop improves the mode-locking stabilization and efficiency. Â© 2004 Wiley Periodicals, Inc

show abstract

“…In this paper we show that the SOA saturation can be usefully exploited in a very simple optical circuit working at low input power. In [4][5][6] this principle was used to reduce the pattern effects in 10, and 40 GHz clock recovery circuits. In [9] the extension to the case of a packet switched environment was introduced using a modified scheme.…”

Section: Introductionmentioning

confidence: 99%

“…An alloptical power limiter can be useful in a number of applications where it is necessary to reduce the amplitude jitter of periodic pulses. For example, it could help to attenuate spurious amplitude modulations in mode-locked lasers [3] or to equalize pulse trains in all-optical clock recovery sub-systems in circuit or packet switched networks [4][5][6][7][8][9]. Up to date, several techniques were proposed for power limiting, but, they are generally complex [3,8], and/or require high optical powers (>20 dBm) as in [7].…”

Section: Introductionmentioning

confidence: 99%

A simple and low-power optical limiter for multi-GHz pulse trains

Contestabile¹,

Presi²,

Proietti³

et al. 2007

Opt. Express

View full text Add to dashboard Cite

Contestabile, G.; Presi, M.; Proietti, R.; Calabretta, N.; Ciaramella, E. Please check the document version of this publication:• A submitted manuscript is the author's version of the article upon submission and before peer-review. There can be important differences between the submitted version and the official published version of record. People interested in the research are advised to contact the author for the final version of the publication, or visit the DOI to the publisher's website.• The final author version and the galley proof are versions of the publication after peer review.• The final published version features the final layout of the paper including the volume, issue and page numbers. Link to publication General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal ? Take down policyIf you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. Abstract:We study the limiting-amplification capability of a saturated Semiconductor Optical Amplifier (SOA) followed by an optical band-pass filter. We experimentally demonstrate that this simple optical circuit can be effectively exploited to realize a low-power optical limiter for amplitudemodulated pulse trains at multi-GHz repetition rate. We report very large amplitude-modulation-reduction factors for the case of 20 and 40 GHz pulse trains that are super-imposed with modulating frequencies ranging from 100kHz to several GHz.

show abstract

30 Gb/s all-optical clock recovery circuit

Cited by 55 publications

References 10 publications

40 Gbit/s all-optical clock recovery based on the injection mode-locked fiber ring laser

40 Gbit/s all-optical clock recovery based on the injection mode-locked fiber ring laser

Optical clock recovery from 10‐Gb/s NRZ signal

A simple and low-power optical limiter for multi-GHz pulse trains

Contact Info

Product

Resources

About