共查询到20条相似文献,搜索用时 14 毫秒
1.
The high-speed (20 Gbit/s) and highly efficient (2 V peak to peak for a 22 dB on/off ratio) operation of an MQW integrated electroabsorption modulator/DFB laser module is demonstrated. Output power from the module is over +3 dBm in the pigtailed singlemode fibre. To the authors' knowledge, this is the first report of 20 Gbit/s operation with a monolithically integrated light source 相似文献
2.
Souli N. Devaux F. Ramdane A. Krauz P. Ougazzaden A. Huet F. Carre M. 《Electronics letters》1994,30(20):1706-1707
Soliton generation and coding are obtained using a novel, and simple tandem integrated electroabsorption (EA) MQW modulator structure. Negligible electrical crosstalk (<40 dB) is obtained due to the integration between the modulators, of an optical amplifier based on the same active layer. This also allowed a very low fibre to fibre insertion loss of 9 dB. The device was operated at 10 Gbit/s 相似文献
3.
Zamkotsian F. Sato K. Okamoto H. Kishi K. Kotaka I. Yamamoto M. Kondo Y. Yasaka H. Yoshikuni Y. Oe K. 《Electronics letters》1995,31(7):578-579
The authors demonstrate a novel InP-based optical multiplexer integrated with MQW electroabsorption modulators for 100 Gbit/s transmission. A 100 GHz optical pulse train is generated and coded with a pseudorandom NRZ pattern 相似文献
4.
Soliton data signals at 20 Gbit/s have been successfully transmitted over 3000 km with the use of soliton control by synchronous modulation and optical filters. The installation of only one simple modulator makes it possible to extend the maximum transmission distance from 2300 km (without soliton control) to 3000 km which is clearly beyond the Gordon-Haus limit 相似文献
5.
6.
20 Gbit/s time-polarisation multiplexed solitons have been transmitted over 19 Mm in a recirculating loop with a 35 km amplification span using the sliding-frequency guiding filter soliton control technique. Soliton energy and sliding rate margin measurements are reported for 10 Mm 相似文献
7.
LeGuen D. Favre F. Boittin R. Debeau J. Devaux F. Henry M. Thebault C. Georges T. 《Electronics letters》1995,31(4):301-302
Soliton transmission of a 20 Gbit/s time/polarisation multiplexed signal over 14 Mm path in a recirculating loop with 46.3 km amplification span has been demonstrated using the sliding-filter soliton control technique. Demultiplexing was achieved by using a polarisation-insensitive electroabsorption modulator 相似文献
8.
An alternating dispersion arrangement is proposed for soliton systems with dispersion compensation to improve soliton stabilisation. A transmission experiment at 20 Gbit/s over 2600 km long singlemode fibre was successfully demonstrated by employing this novel dispersion arrangement 相似文献
9.
King J.P. Hardcastle I. Harvey H.J. Greene P.D. Shaw B.J. Jones M.G. Forbes D.J. Wright M.C. 《Electronics letters》1995,31(13):1090-1091
Polarisation-independent error-free 20 Gbit/s soliton data transmission over 12500 km with flat system Q dependence on distance, has been demonstrated using static filtering and a semiconductor polarisation-independent amplitude and phase modulator for soliton transmission control 相似文献
10.
An InGaArInAlAs MQW modulator with the low voltage of 1.5 V for 10 dB extinction ratio and 16 GHz bandwidth has been developed. This ultrahigh-speed modulator enables the modulator driver to be eliminated from the transmitter. 100 km transmission experiments have been carried out using either a 1 V peak to peak output monolithic-IC-driven modulator at 15 Gbit/s or a 2 V peak to peak output multiplexer-driven modulator at 20 Gbit/s. This is the first report on multigigabit operation of MQW modulators to the authors' knowledge.<> 相似文献
11.
All-optical soliton synchronous phase modulation through transmission fibre is shown to enable error-free propagation of 20 Gbit/s signals up to 7150 km without the need for dispersion management. Tolerance to imperfect clock-signal synchronisation is characterised experimentally 相似文献
12.
《Electronics letters》1995,31(13):1079-1080
20 Gbit/s soliton transmission over large distances (150000 km) is demonstrated in a recirculating loop with a record amplifier span of 105 km. For the first time, an electroabsorption modulator is used to provide the necessary in-line modulation control 相似文献
13.
Shirai M. Arimoto H. Watanabe K. Taike A. Shinoda K. Shimizu J. Sato H. Ido T. Tsuchiya T. Aoki M. Tsuji S. Sasada N. Tada S. Okayasu M. 《Electronics letters》2003,39(9):733-735
A novel travelling-wave electroabsorption optical modulator, electrically matched for 50 /spl Omega/ loads of driving circuit drivers, was developed. The scattering parameter of electric reflection (S/sub 11/) from this modulator is less than -20 dB at 20 GHz. It can thus enable a 40 Gbit/s, 2 km SMF transmission with a 0.3 dB penalty at a 1.3 /spl mu/m wavelength. 相似文献
14.
Aubin G. Montalant T. Moulu J. Pirio F. Thomine J.-B. Devaux F. 《Electronics letters》1996,32(24):2188-2189
40 Gbit/s soliton transmission is achieved in a recirculating loop over 10000 km, for the first time to the authors' knowledge. With a single carrier wavelength. Propagation has been tested with and without polarisation multiplexing thanks to low polarisation dependency electroabsorption modulators for in-line control and for the time demultiplexing receiver 相似文献
15.
Nakazawa M. Suzuki K. Yoshida E. Yamada E. Kitoh T. Kawachi M. 《Electronics letters》1995,31(7):565-566
Polarisation- and time-domain-multiplexed 160 Gbit/s soliton signals have been successfully transmitted over 200 km for the first time. The soliton source was a 10 GHz regeneratively modelocked fibre laser and a planar lightwave circuit was used for optical multiplexing. The soliton pulse width was ~1.5 ps. A polariser and a nonlinear loop mirror were used for demultiplexing from 160 to 10 Gbit/s 相似文献
16.
Jahn E. Agrawal N. Pieper W. Ehrke H.-J. Franke D. Furst W. Weinert C.M. 《Electronics letters》1996,32(9):782-784
A Sagnac interferometer consisting of a semiconductor laser amplifier and a 3 dB coupler monolithically integrated within a waveguide loop mirror is fabricated and its application as a 20 Gbit/s all-optical demultiplexer is demonstrated 相似文献
17.
A waveguide directional coupler modulator is demonstrated with a bandwidth of 1 GHz and a rise time of 590 ps. An analysis of the electrical parasitics is presented and the device response is found to be transit-time limited. The scaling of the frequency response is shown to be characterized by a bandwidth-length product of 1.1 GHz - cm. 相似文献
18.
2.8 Gbit/s optical soliton transmission is successfully demonstrated using a gain-switched 1.55 mu m distributed feedback laser diode and a Ti:LiNbO/sub 3/ intensity modulator. An Er/sup 3+/-doped fibre amplifier and a Raman amplifier, both pumped by 1.47 mu m laser diodes, are employed to achieve intense optical pulses and fibre-loss compensation, respectively.<> 相似文献
19.
80 Gbit/s wavelength conversion using MQW electroabsorption modulator in delayed-interferometric configuration 总被引:1,自引:0,他引:1
Absorption recovery time and cross-phase modulation characteristics of an MQW electroabsorption modulator (EAM) were experimentally analysed. 80 Gbit/s error-free operation of a wavelength converter using the MQW EAM in a delayed-interferometer configuration was demonstrated for the first time. 相似文献
20.
Kaman V. Yi-Jen Chiu Liljeberg T. Zhang S.Z. Bowers J.E. 《Photonics Technology Letters, IEEE》2000,12(11):1471-1473
Integrated tandem traveling-wave electroabsorption modulators are demonstrated as high-speed optical short pulse generators and demultiplexers for >100 Gbit/s optical time-division-multiplexed systems. The tandem significantly increases the extinction ratio and further compresses the optical pulses in comparison to a single modulator. An extinction ratio of /spl sim/50 dB is achieved while optical pulses of 4-6 ps width at 30-40 GHz are generated. 相似文献