Fast switching characteristics of a widely tunable laser transmitter

We demonstrate a widely tunable laser transmitter that accesses 32 ITU channels with 100-GHz spacing and switches between all channel combinations in less than 45 ns. The compact module uses commercially available electronic components. We investigate the electrical and thermal properties of the las...

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Bibliographic Details
Published inIEEE photonics technology letters Vol. 15; no. 8; pp. 1038 - 1040
Main Authors Simsarian, J.E., Bhardwaj, A., Gripp, J., Sherman, K., Yikai Su, Webb, C., Liming Zhang, Zirngibl, M.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.08.2003
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Channels
Circuit optimization
Driver circuits
Drivers
Electronic components
Impedance
Laser tuning
Lasers
Switches
Switching
Switching circuits
Temperature
Transmitters
Tunable circuits and devices
Tunable lasers
Tuning
Wavelengths
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Summary:We demonstrate a widely tunable laser transmitter that accesses 32 ITU channels with 100-GHz spacing and switches between all channel combinations in less than 45 ns. The compact module uses commercially available electronic components. We investigate the electrical and thermal properties of the laser and the tuning section driver. The experiments show that a low output impedance driver circuit produces faster switching times. Also, temperature variation of the laser limits the wavelength accuracy of the switching. Finally, we present the correlation between switching times and the laser tuning currents.
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ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2003.814873