Error-free 250 km transmission in standard fibre using compact 10 Gbit∕s chirp-managed directly modulated lasers (CML) at 1550 nm

Mahgerefteh, Daniel; Matsui, Yasuhiro; Liao, Chen-Hong; Johnson, Brad; Walker, Donald G.; Zheng, Xuqiang; Fan, Z.F.; McCallion, K.; Tayebati, P.

doi:10.1049/el:20050631

Cited by 48 publications

(10 citation statements)

References 5 publications

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“…The performances of the three CML channels are very close to each other. This is expected since in the CML, chirp is predominately adiabatic and is set by the drive voltage, while transient chirp is minimized by the use of high laser bias and the optical spectrum reshaper filter in the transmitter [2]. Channel 1 has a slightly higher penalty than the other two channels at all the three distances.…”

Section: -Channel Dwdm Transmission Performance Over Different DImentioning

confidence: 93%

Evaluation of Chirp-Managed Lasers in a Dispersion Managed DWDM Transmission over 24 Spans

Chandrasekhar¹,

Kilper²,

Zheng³

et al. 2007

OFC/NFOEC 2007 - 2007 Conference on Optical Fiber Communication and the National Fiber Optic Engineers Conference

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We report the first long-haul DWDM transmission using three chirp-managed lasers spaced 50-GHz apart in SSMF at 10-Gb/s. Transmission penalties less than 0.7dB over a dispersion-managed 1980-km link was measured with performance comparable to NRZ-OOK. OCIS Codes: (060.2360) Fiber optics links and subsystems; (060.4080) Modulation; (060.4510) Optical communications IntroductionRecently, the chirp-managed laser (CML) source, was demonstrated [1, 2] as an alternate transmitter technology in a small form factor that has large dispersion tolerance and was also shown to benefit from receive-side electronic signal processing. Several single channel transmission results were reported, demonstrating the versatility of the device, including the generation of return-to-zero (RZ) alternate-mark inversion (AMI) format and it's application in a ultra-long haul transmission over 9280 km [3]. The device was primarily introduced to address the metropolitan area network applications, where reach is limited, channel spacing not very stringent, but dispersion tolerance is important. Our past measurements indicate that the CML source, with it's narrow spectral extent, could be beneficial in dense wavelength multiplexed (DWDM) networks that span large distances. We had demonstrated transmission over 1200 km of non-zero-dispersion shifted fiber (NZDSF) of a single CML source in a DWDM environment [4] without any optical dispersion compensation. In this report, we demonstrate 3-channel DWDM transmission over 24 spans (1980 km) of standard single mode fiber (SSMF), using three CML sources spaced 50-GHz apart. This is the first report of the use of the CML source in a long-haul dispersion managed DWDM transmission link at 10-Gb/s. We also compare the performance of the CML with that of the traditional chirp-free non-return-to-zero (NRZ) on-off keyed (OOK) format in the same transmission link and demonstrate comparable performance.

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Section: -Channel Dwdm Transmission Performance Over Different DImentioning

confidence: 93%

Evaluation of Chirp-Managed Lasers in a Dispersion Managed DWDM Transmission over 24 Spans

Chandrasekhar¹,

Kilper²,

Zheng³

et al. 2007

OFC/NFOEC 2007 - 2007 Conference on Optical Fiber Communication and the National Fiber Optic Engineers Conference

Self Cite

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“…However, no transmission performance has been reported yet. CMLs have increased uncompensated-dispersion optical reach beyond 200 km [2] and up to 300 km [3]. In [2], a 10 Gb/s transmission over 250 km of standard single-mode fiber (SSMF) with 4.8 dB of power penalty was reported.…”

Section: Introductionmentioning

confidence: 99%

“…CMLs have increased uncompensated-dispersion optical reach beyond 200 km [2] and up to 300 km [3]. In [2], a 10 Gb/s transmission over 250 km of standard single-mode fiber (SSMF) with 4.8 dB of power penalty was reported. A CML unit under small form factor pluggable transceiver was also demonstrated to cover 300 km link with 13.7 dB OSNR required at Bit-Error-Rate (BER) of [3].…”

Section: Introductionmentioning

confidence: 99%

ElectroAbsorption Modulated Laser Integrated with a Semiconductor Optical Amplifier for 100-km 10.3 Gb/s Dispersion-Penalty-Free Transmission

Ngô

Nguyen

Gosset

et al. 2013

J. Lightwave Technol.

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We report, for the first time, a transmission experiment over standard fiber at 1.55 m using an electroabsorption modulated laser (EML) integrated with a semiconductor optical amplifier (SOA). We show clearly that negative pre-chirped signals can be obtained by adjusting both modulator and amplifier driving parameters. Negative chirp operation is evaluated through small-signal chirp measurement as well as through time-resolved dynamic chirp measurement. Signal chirp control at emission enhances transmission and increases optical reach. Thanks to the SOA gain and chirp compensation for modulator loss and chirp, dispersion-penalty-free with clear open eye diagrams over 100 km of optical fiber at 10.3 Gb/s is achieved. A transmission up to 125 km is also obtained. This novel fully integrated EML-SOA is very promising as a high-performance, compact and low-cost optical transmitter for the future access-metropolitan network convergence.

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“…Optical filters are commonly encountered in many fiber op− tic transmission systems for the purpose of multiplexing/ demultiplexing [1] or shaping of the optical signals [2][3][4][5]. In all these cases knowing exactly how the filter influences the signal is of great interest.…”

Section: Introductionmentioning

confidence: 99%

Resolving group delay of narrowband optical filters from their transmission characteristics

Śliwczyński

2009

Opto-Electronics Review

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In the paper, the factors affecting the accuracy of calculating the optical filter group delay basing on the measured power transmission characteristic are analyzed. Having the phase characteristic of the filter recovered from its transmission, the group delay is usually calculated via differentiation. The new, direct formula is proposed giving more accurate results when the characteristic of the filter is available in the limited frequency range. Also the limitations arising from the noise of the optical spectrum analyzer are examined.

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Error-free 250 km transmission in standard fibre using compact 10 Gbit∕s chirp-managed directly modulated lasers (CML) at 1550 nm

Cited by 48 publications

References 5 publications

Evaluation of Chirp-Managed Lasers in a Dispersion Managed DWDM Transmission over 24 Spans

Evaluation of Chirp-Managed Lasers in a Dispersion Managed DWDM Transmission over 24 Spans

ElectroAbsorption Modulated Laser Integrated with a Semiconductor Optical Amplifier for 100-km 10.3 Gb/s Dispersion-Penalty-Free Transmission

Resolving group delay of narrowband optical filters from their transmission characteristics

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