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51.
We report on the tunable dual-mode operation of a chirped grating distributed-feedback (DFB) laser device with two integrated modulators which act as tuning sections. A transfer-matrix model is used to simulate the amplified spontaneous emission spectrum for a chirped grating DFB laser. Several types of dual-mode operation are observed for wavelength spacings of 0.5 nm and 1.4 nm corresponding to frequency detunings of 63 GHz and 175 GHz 相似文献
52.
L. E. Adams G. Nykolak T. Tanbun-Ek A. J. Stentz A. M. Sergent P. F. Sciortino Jr L. Eskildsen 《Fiber and Integrated Optics》1998,17(4):311-316
We demonstrate stimulated Brillouin scattering (SBS) using a new laser transmitter. The device uses an integrated FM modulator for both SBS suppression and channel tuning, and an integrated AM modulator for data encoding. We measure thresholds of 25 dBm on four separate wavelength division multiplexing channels. The required modulation signal is very small, 95 mVpp, and the residual AM is only 1 %. 相似文献
53.
Olsson N.A. Andrekson P.A. Simpson J.R. Tanbun-Ek T. Logan R.A. Wecht K.W. 《Electronics letters》1991,27(9):695-697
Two wavelength division multiplexed soliton pulse trains (2*2 Gbit/s 0101. . .) have been propagated more than 9000 km with less than 10/sup -9/ bit error rate for both channels. Soliton collisions have no effect on the error rate for wavelength separations larger than 7 AA or for collisions centred inside the fibre.<> 相似文献
54.
Y.K. Chen M.C. Wu T. Tanbun-Ek R.A. Logan M.A. Chin 《Photonics Technology Letters, IEEE》1991,3(11):971-973
The authors report on the separation of single longitudinal modes from the mode-locked program spectrum of a 300-GHz monolithic colliding pulse mode-locked (CPM) semiconductor quantum-well laser. Experimentally, the selected longitudinal mode shows a 10-dB reduction of low-frequency relative intensity noise compared to that of the selected mode from the same laser in continuous-wave (CW) lasing conditions. The strong phase coherence among the passively mode-locked longitudinal modes reduces the partition noise of the unlocked CW laser.<> 相似文献
55.
A systems perspective on digital interconnection technology 总被引:1,自引:0,他引:1
56.
Abe Y Kishino K. Tanbun-Ek T. Arai S. Koyama F. Matsumoto K. Watanabe T. Suematsu Y. 《Electronics letters》1982,18(10):410-411
CW operation of a 1.60 ?m GaInAsP/InP buried-heterostructure integrated laser with butt-jointed built-in distributed-Bragg-reflection waveguide (BH BJB DBR integrated laser) was achieved at room temperature. Single longitudinal-mode operation at fixed mode was obtained in a temperature range of about 60 deg C, under the CW condition, and it was also maintained under rapid direct modulation of 1.6 GHz. 相似文献
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