
Proceedings Paper
Broadband superluminescent light-emitting device at 840 nm with high performance stabilityFormat | Member Price | Non-Member Price |
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Paper Abstract
We have fabricated superluminescent light-emitting devices in the 840nm wavelength range with flat top spectral shape.
The novel design allows more than 50nm bandwidth and up to 34mW of optical power at the chip facet. Moreover, the
3dB bandwidth changes by less than 2nm within a driving current range between 120mA and 200mA. This corresponds
to a power level change between 17mW and 34mW, without considerable shape changes, which is one of the main
concerns for many applications. The stability of the spectral bandwidth is also reflected by the central wavelength that
changes by less than 1nm in the same range of currents. The device shows great stability of the optical far field with
respect to the driving current, allowing stable coupling of the emitted beam in optical fibers. We have also measured the
coherence function of this device using an interferometric spectrum analyzer. Results show good side-lobes suppression
ratio of more than 10dB, which remains almost unchanged over the whole range of driving currents.
Paper Details
Date Published: 5 March 2008
PDF: 8 pages
Proc. SPIE 6847, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine XII, 68472N (5 March 2008); doi: 10.1117/12.763480
Published in SPIE Proceedings Vol. 6847:
Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine XII
Joseph A. Izatt; James G. Fujimoto; Valery V. Tuchin, Editor(s)
PDF: 8 pages
Proc. SPIE 6847, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine XII, 68472N (5 March 2008); doi: 10.1117/12.763480
Show Author Affiliations
Published in SPIE Proceedings Vol. 6847:
Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine XII
Joseph A. Izatt; James G. Fujimoto; Valery V. Tuchin, Editor(s)
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