40 Gbit/s all-optical clock recovery using a two-sectiongain-coupled DFB laser and semiconductor optical amplifier

Mao, Weiming; Li, Y.; Al-Mumin, M.; Li, G.

doi:10.1049/el:20010873

Cited by 17 publications

(5 citation statements)

References 4 publications

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“…Both wavelength conversion and signal recovery functions will be the most fundamental issues. To realize these functions, semiconductor-based devices, such as a semiconductor-optical-amplifier-based Mach-Zehnder interferometer (SOA-MZI) [1,2] and an SP-LD [3][4][5] have been studied. Three-electrode-type SP-DFB LDs, which can recover an optical clock pulse sequence by injecting external signals, are promising because of their wide tunability of repetition frequency by DC current control.…”

Section: Simulations Of Sp-dfb Losmentioning

confidence: 99%

Lasing mode analysis of self-pulsating DFB laser diodes for all-optical signal recovery at 40 Gbps

Nishikawa

Gotoda

Nishimura

et al. 2008

2008 International Conference on Photonics in Switching

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is a phase tuning section between the DFBs. SP operation occurs when adjacent dual modes oscillate simultaneously at both the long-wavelength-side (LW) edge of the short-wavelength-side (SW) OFB stopband and the SW edge of the LW OFB stopband. Two OFB sections can be roughly interpreted to consist of a compound cavity with one DFB section acting as a distributed mirror for a lasing mode of another DFB section. Simulations of SP-DFB LOsLasing condition analyses were performed by temporal evolution simulation [6]. The electromagnetic fields and the carrier densities were calculated for each divided LD section, and lasing spectrum, reflection spectra and reflection phases of both DFBs were calculated from the data. Figure 2(a) shows a mirror loss spectrum of the total cavity estimated from the calculated reflectivity spectra of both OFBs, which indicate small gains. The mirror loss was maintained at a similar value of --50 cm-1 over a relatively wide range from 1549.8 to 1550.4 nm, around the LW stopband edge of the SW-OFB and the SW edge of the LW OFB. Figure 2(c) shows the calculated optical spectrum. Figure 2(b) shows the round-trip reflection phase spectrum obtained from the sum of reflection phases of SW-and LW-DFBs. Phase shift due to the phase tuning section is also denoted by a dotted line. Cross points of these data are thought to indicate phase matching conditions. As denoted by vertical broken lines, lasing wavelengths coincided well with cross point positions. Calculated mirror loss indicated almost the same value in the lasing modes shown as a solid square and an open circle. This feature is consistent with the similar intensities of the dual lasing modes shown in Fig. 2(c). This was attributed to the compound-cavity nature of SP operation. Ẽ (a) fI) 0 fI) ..2 t:: 5 ·50 I~Ĩ It (b) r")" l~········ V!, . iii ! ĩ 10

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Section: Simulations Of Sp-dfb Losmentioning

confidence: 99%

Lasing mode analysis of self-pulsating DFB laser diodes for all-optical signal recovery at 40 Gbps

Nishikawa

Gotoda

Nishimura

et al. 2008

2008 International Conference on Photonics in Switching

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“…All-optical Re-timing is one key technology in the all-optical 3R regeneration. In recent years, many kinds of all-optical clock recoveries have been studied, including passively mode-locked lasers which mainly contained the DBR configurations [1] and the Fabry-Perot configurations [2][3][4], injecting mode-locked lasers (IMLL) [5,6] and multi-section self-pulsation lasers (SPL) [7][8][9][10]. Compared with other methods, the use of multi-section self-pulsation DFB lasers is more promising applicants for all-optical Re-timing, due to their merits including compact sizes, easy control by DC injection current, wide tuning range and suitability to be used in the future optical communications with ultrahigh-speed [10] even in T-Hz range [11].…”

Section: Introductionmentioning

confidence: 99%

“…Compared with other methods, the use of multi-section self-pulsation DFB lasers is more promising applicants for all-optical Re-timing, due to their merits including compact sizes, easy control by DC injection current, wide tuning range and suitability to be used in the future optical communications with ultrahigh-speed [10] even in T-Hz range [11]. Up to now, all-optical clock recoveries have been successfully demonstrated by using both the index coupled [7,8] and gain-coupled [9][10][11] multi-section self-pulsation DFB laser.…”

Section: Introductionmentioning

confidence: 99%

All-optical clock recovery using a ridge width varied two-section partly gain-coupled DFB self-pulsation laser

Kong

Zhu

Liu

et al. 2010

Optics Communications

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“…To realize these functions, semiconductor-based devices, such as a semiconductor-optical-amplifier-based Mach-Zehnder interferometer (SOA-MZI) 1,2) and a self-pulsating laser diode (SP-LD) have been studied. SP-LDs with distributed feedback (DFB) active sections [3][4][5] were proposed for the application of signal recovery. In particular, three-electrodetype SP-DFB LDs, 4) which can recover an optical clock pulse sequence by injecting external signals, are promising because of their wide tunability of repetition frequency by DC current control.…”

Section: Introductionmentioning

confidence: 99%

Lasing Mechanism Analysis of Self-Pulsating Distributed Feedback Laser Diodes and Successful Demonstration of All-Optical Signal Recovery at 40 Gbps

Nishikawa

Gotoda

Nishimura

et al. 2008

jjap

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Three-electrode-type self-pulsating (SP) distributed feedback (DFB) laser diodes (LDs), which can recover an optical clock pulse sequence by injecting external signals, were investigated. Numerical simulations revealed that the matching relations of a round-trip phase between the two DFB sections determined the dominant lasing modes. The phase tuning section length was also confirmed by simulations to be a sensitive device parameter for pulsating frequency because of the change of the round-trip phase. We fabricated SP-DFB LDs with different phase tuning section lengths and investigated SP characteristics experimentally. A good agreement was obtained between simulations and measurements. Finally, all-optical wavelength conversion of 40 Gbps return to zero pseudo random binary sequence optical signals with timing jitter reduction was successfully demonstrated by a hybrid combination of an SP-LD and a monolithically integrated semiconductor-optical-amplifier-based Mach–Zehnder interferometer.

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40 Gbit/s all-optical clock recovery using a two-sectiongain-coupled DFB laser and semiconductor optical amplifier

Cited by 17 publications

References 4 publications

Lasing mode analysis of self-pulsating DFB laser diodes for all-optical signal recovery at 40 Gbps

Lasing mode analysis of self-pulsating DFB laser diodes for all-optical signal recovery at 40 Gbps

All-optical clock recovery using a ridge width varied two-section partly gain-coupled DFB self-pulsation laser

Lasing Mechanism Analysis of Self-Pulsating Distributed Feedback Laser Diodes and Successful Demonstration of All-Optical Signal Recovery at 40 Gbps

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