Enhanced wavelength tuning of an InGaAsP-InP laser with a thermal-strain-magnifying trench
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作者:
Cohen, DA
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Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USAUniv Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA
Cohen, DA
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Mason, B
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Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USAUniv Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA
Mason, B
[1
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Dolan, J
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Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USAUniv Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA
Dolan, J
[1
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Burns, C
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Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USAUniv Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA
Burns, C
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Coldren, LA
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Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USAUniv Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA
Coldren, LA
[1
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机构:
[1] Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA
We have used temperature-dependent strain from differential thermal expansion to increase the temperature tuning rate, d lambda/dT, of the modal wavelength of an InP-based laser. The effectiveness of the strain may be further enhanced with a deep trench etch beneath the laser waveguide. We have obtained a 50% increase in the tuning rate, without degradation of the threshold current, and a maximum increase of 86%. (C) 2000 American Institute of Physics. [S0003-6951(00)00243-6].