共查询到20条相似文献,搜索用时 15 毫秒
1.
Windover L.A.B. Simon J.N. Rosenau S.A. Giboney K.S. Flower G.M. Mirkarimi L.W. Grot A. Law B. Chao-Kun Lin Tandon A. Gruhlke R.W. Hui Xia Rankin G. Tan M.R.T. Dolfi D.W. 《Lightwave Technology, Journal of》2004,22(9):2055-2063
A parallel-optical interconnect with 12 channels operating at 8.5 Gb/s giving an aggregate data rate of 102 Gb/s is demonstrated, to the authors' knowledge, for the first time. The paper describes and demonstrates 13 /spl times/ 16-mm cross-section 12-channel parallel-optic transmitter and receiver modules with each channel operating at a data rate of 8.5-10 Gb/s. This was achieved using bottom-emitting 990-nm vertical-cavity surface-emitting lasers and bottom-illuminated InGaAs-InP photodetectors flip-chip bonded directly to 12-channel transmitter and receiver integrated circuits, respectively. In addition, 102-Gb/s link results are demonstrated over 100 m of 50-/spl mu/m-core standard multimode ribbon fiber. A bit-error ratio of <10/sup -13/ was measured on a single channel after transmission through 100 m of multimode fiber at a data rate of 8.5 Gb/s with all 12 channels operating simultaneously. 相似文献
2.
Aleksandar Risteski Boris Spasenovski Jeffrey Kash Petar Pepeljugoski 《Telecommunication Systems》2006,32(2-3):117-129
In this paper we present the dependence of the ISI penalty and ISI failure rate on various transmitter and fiber parameters
characterizing 10 Gb/s Ethernet links with 300 m long OM3 multimode fibers operated at 850 nm. Statistical optimization of
the launch conditions results in optimal values for the laser encircled flux (13–17 μm) and lateral offset of the source (10–18
μm). The analysis of the ISI failure rate and ISI correlation coefficients showed that without additional optimization, the
axial offset between the laser and the fiber axes has detrimental effects on the performance of the TIA-compliant links and
it should be less than 60 μm. The optimization of the launch conditions with additional criteria going beyond TIA requirements
may reduce the ISI penalty by as much as 0.7 dB leading to ISI penalty well below its allocation limit of 2.5 dB. This gives
an opportunity to increased link lengths beyond standardized 300 m. 相似文献
3.
The effect of fiber dispersion on the performance of lightwave systems is analyzed for the case where multimode semiconductor lasers operating near the zero-dispersion wavelength of the single-mode fiber are used as sources. Both the intersymbol interference and the mode-partition noise are considered in the discussion of dispersion-induced power penalties. The theory is in agreement with an experiment in which the bit error rate is measured for lasers at various bit rates. The tolerable limits on the deviation of the laser wavelength from the zero-dispersion wavelength are obtained for a 1.3-μm system operating at 1.7 Gb/s. Monte Carlo simulations are used to predict the effect of mode-partition noise on the performance of such high-speed lightwave communication systems 相似文献
4.
We present a ten-channel parallel fiber optic link consisting of a transmitter based on an edge emitting laser diode array operating nominally at 1 μm wavelength and a complementary receiver based on an InGaAs pin photodetector array. We demonstrate fiber optic link performance up to data rates of 1 Gb/s per channel with low skew at measurement time limited bit error rates lower than 10-11 over 100 m of multimode fiber ribbon cable. The transmitter is operational, with very clear eye opening, up to baseplate temperatures of 105°C 相似文献
5.
Li J. Myren N. Margulis W. Ortega B. Puerto G. Pastor D. Capmany J. Belmonte M. Pruneri V. 《Photonics Technology Letters, IEEE》2005,17(12):2571-2573
The performance of a 2/spl times/2 all-fiber electrooptical switch is characterized in a system at up to 40 Gb/s. Error-free transmission is demonstrated. The device was also employed as a protection switch at 10 Gb/s in an installed fiber link. 相似文献
6.
Fiedler U. Moller B. Reiner G. Wiedenmann D. Ebeling K.J. 《Photonics Technology Letters, IEEE》1995,7(10):1116-1118
Transverse single-mode and multimode intensity modulated butt-coupled InGaAs vertical cavity surface emitting lasers (VCSEL)s are investigated as a light source for optical fiber communication systems. Data transmission at 3 Gb/s with a bit error rate (BER) of less than 10 -11 is reported for both 4.3 km of standard fiber, as well as 0.5 km of multimode graded-index fiber, 10-μm active diameter single-mode VCSELs are shown to have lower mode competition noise requiring 3 dB and 6 dB less power at the front end receiver at a BER of 10-11 compared to 19-μm and 50-μm active diameter devices, respectively. In data transmission with multimode VCSELs, the dispersion penalty is lower than for single-mode sources since the noise at the receiver is mainly determined by transmitter-mode competition noise 相似文献
7.
8.
The fiber optic cable infrastructure currently used by many large data centers is over 10 years old, and may soon require upgrading in order to support higher-data-rate services. Legacy multimode optical fiber is typically low bandwidth, and will only support limited distances at data rates exceeding 1 Gb/s. In this article we investigate various methods for extending the distance of multimode fiber at higher data rates. This includes the tactical use of enhanced bandwidth multimode fiber, electronic dispersion compensation, and wavelength tuning control loops. 相似文献
9.
《Photonics Technology Letters, IEEE》2010,22(2):70-72
10.
Suzuki A. Wakazono Y. Nagao D. Ishikawa T. Hino T. Hashimoto Y. Masuda H. Suzuki S. Tamura M. Suzuki T. Kikuchi K. Nakagawa H. Okada Y. Aoyagi M. Mikawa T. 《Photonics Technology Letters, IEEE》2008,20(3):193-195
We propose a novel self-alignment process of optical devices with optical fiber. A vertical-cavity surface-emitting laser (VCSEL) was automatically coupled with a multimode fiber (MMF) through the surface tension of a liquid adhesive within 1.5 s. Misalignment between the center of the VCSEL and the fiber was measured to be 15 mum, which is acceptable for coupling the VCSEL with the MMF. High-speed pulse modulation of the self-aligned VCSEL up to 5 Gb/s, as well as at 1 Gb/s, was demonstrated. The average optical output power was as high as -5.9 dBm at 1 Gb/s. 相似文献
11.
Yang H. Lee S. C. J. Tangdiongga E. Okonkwo C. van den Boom H. P. A. Breyer F. Randel S. Koonen A. M. J. 《Lightwave Technology, Journal of》2010,28(4):352-359
12.
Kuchta D.M. Kwark Y.H. Schuster C. Baks C. Haymes C. Schaub J. Pepeljugoski P. Shan L. John R. Kucharski D. Rogers D. Ritter M. Jewell J. Graham L.A. Schrodinger K. Schild A. Rein H.-M. 《Lightwave Technology, Journal of》2004,22(9):2200-2212
A 120-Gb/s optical link (12 channels at 10 Gb/s/ch for both a transmitter and a receiver) has been demonstrated. The link operated at a bit-error rate of less than 10/sup -12/ with all channels operating and with a total fiber length of 316 m, which comprises 300 m of next-generation (OM-3) multimode fiber (MMF) plus 16 m of standard-grade MMF. This is the first time that a parallel link with this bandwidth at this per-channel rate has ever been demonstrated. For the transmitter, an SiGe laser driver was combined with a GaAs vertical-cavity surface-emitting laser (VCSEL) array. For the receiver, the signal from a GaAs photodiode array was amplified by a 12-channel SiGe receiver integrated circuit. Key to the demonstration were several custom testing tools, most notably a 12-channel pattern generator. The package is very similar to the commercial parallel modules that are available today, but the per-channel bit rate is three times higher than that for the commercial modules. The new modules demonstrate the possibility of extending the parallel-optical module technology that is available today into a distance-bandwidth product regime that is unattainable for copper cables. 相似文献
13.
Ewen J.F. Jackson K.P. Bates R.J.S. Flint E.B. 《Lightwave Technology, Journal of》1991,9(12):1755-1763
A high-speed, highly integrated fiber-optic data communications link is described. It consists of a transmitter module containing a GaAs integrated circuit and a laser array with fiber array pigtail, and a receiver module containing a GaAs OEIC with a fiber array pigtail. The performance of the link at 1 Gb/s is presented with emphasis on the crosstalk and noise issues with those high levels of integration. Measured error rates as low as 10-15 confirm that these highly integrated link adapters are suitable for use in data processing networks 相似文献
14.
Hagimoto K. Miyagawa Y. Miyamoto Y. Ohhata M. Suzuki T. Kikuchi H. 《Selected Areas in Communications, IEEE Journal on》1991,9(5):673-682
The design and performance of repeater circuits based on Si and GaAs MESFET process technologies are described. Repeater circuits were designed and fabricated for around 10 Gb/s repeater systems using Si and GaAs IC processes. The Si ICs operated up to 9 Gb/s, and the GaAs ICs exceeded 10 Gb/s. It was verified that regenerative repeater systems using these ICs and optical amplifiers exhibit a stable operation at 10 Gb/s. The performance of the 10 Gb/s repeater using these monolithic ICs and photonic circuits is discussed 相似文献
15.
We report an investigation of a multimode EDFA used as an optically preamplified receiver. A two-stage amplifier pumped at 982 nm shows gain of up to 40 dB at 1553 nm. We study the communications performance of the receiver at 10 Gb/s and compare it with theory. The measured sensitivity is 220 photons per bit at a bit error rate of 10/sup -9/ and data rate of 10 Gb/s. This is 4.5 dB from the quantum limit of 75 photons per bit for a 56 mode amplifier. 相似文献
16.
《Advanced Packaging, IEEE Transactions on》2009,32(2):328-344
17.
L. Billia Jintian Zhu T. Ranganath D.P. Bour S.W. Corzine G.E. Hofler 《Photonics Technology Letters, IEEE》2005,17(1):49-51
Broad bandwidth external modulators are widely used in optical fiber networks to avoid the chirp associated with the direct modulation of laser diode sources. For transmission application beyond 10 Gb/s, electroabsorption modulators (EAMs) offer many advantages such as low drive voltage, low chirp characteristics, small size, and added functionality through integration with a distributed feedback laser. In this letter, we present static and dynamic characterization of an EAM demonstrating the possibility to have with the same device uncooled operation at 40 Gb/s and negative chirp at low negative bias. These features are attractive for cost reduction in short link applications and for long-haul transmission. All the measurements are performed at 40 Gb/s from room temperature up to 60/spl deg/C demonstrating a negative chirp behavior for the stand-alone modulator over the entire temperature range. 相似文献
18.
Lunardi L.M. Chandrasekhar S. Gnauck A.H. Burrus C.A. Hamm R.A. Sulhoff J.W. Zyskind J.L. 《Photonics Technology Letters, IEEE》1995,7(2):182-184
A very high sensitivity, high speed, fiber-pigtailed photoreceiver module is described. The OEIC photoreceiver, composed of a p-i-n photodetector monolithically integrated with an InP-InGaAs heterojunction bipolar transistor (HBT)-based transimpedance amplifier, has measured sensitivity of -20 dBm and -17.6 dBm for data rates of 10 and 12 Gb/s, respectively, at a bit error rate of 1×10-9. These results are the best ever reported for an OEIC photoreceiver at these speeds. In an optical transmission experiment with a low noise erbium-doped fiber amplifier (EDFA) preceding the OEIC photoreceiver, the measured sensitivities were -35.2 and -32 dBm at 10 and 12 Gb/s respectively 相似文献
19.
Sang Soo Lee Hyunwoo Cho Sang‐Kyu Lim Dong‐Soo Lee Kyeong‐Mo Yoon Yong‐Gi Lee Kwangjoon Kim Jesoo Ko 《ETRI Journal》2008,30(2):261-267
In this paper, we propose and demonstrate a cost‐effective technique to upgrade the capacity of dense wavelength division multiplexing (DWDM) networks to a 40 Gb/s line rate using the existing 10 Gb/s‐based infrastructure. To accommodate 40 Gb/s over the link optimized for 10 Gb/s, we propose applying a combination of super‐FEC, carrier‐suppressed return‐to‐zero, and pre‐emphasis to the 40 Gb/s transponder. The transmission of 40 Gb/s DWDM channels over existing 10 Gb/s line‐rate long‐haul DWDM links, including 40×40 Gb/s transmission over KT's standard single‐mode fiber optimized for 10 Gb/s achieves successful results. The proposed upgrading technique allows the Q‐value margin for a 40 Gb/s line rate to be compatible with that of 10 Gb/s. 相似文献
20.
Hatori N. Mizutani A. Nishiyama N. Matsutani A. Sakaguchi T. Motomura F. Koyama F. Iga K. 《Photonics Technology Letters, IEEE》1998,10(2):194-196
We have fabricated a p-type delta-doped InGaAs-GaAs quantum-well (QW) vertical-cavity surface-emitting laser (VCSEL) with a low-resistance GaAs-AlAs distributed Bragg reflector (DBR). The threshold was as low as 700 μA for 10×10 μm2 devices. A penalty-free 10-Gb/s transmission experiment with a 100-m-long multimode fiber was performed using fabricated VCSELs. The modulation speed was up to 12 Gb/s, which was limited by an RC constant. Further threshold reduction and high-speed operation can be expected by controlling the doping concentration in p-type delta-doped layers 相似文献