Optical high-frequency pulse generation with wavelength tunability by using a DBR laser with vernier-type gratings

An optical high-frequency pulse generation method with wavelength tunability is presented by taking advantage of vernier-type gratings in a distributed Bragg reflector laser diode. Experimental results showed that sinusoidal optical pulses, whose lasing wavelengths were tunable, were created with re...

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Veröffentlicht in:	IEEE photonics technology letters 2005-08, Vol.17 (8), p.1608-1610
Hauptverfasser:	Nishikawa, S., Gotoda, M., Nishimura, T., Tokuda, Y.
Format:	Artikel
Sprache:	eng
Schlagworte:	Bragg reflectors DBR lasers Dense wavelength-division multiplexing (DWDM) Diffraction gratings distributed Bragg reflector (DBR) laser Distributed Bragg reflectors Distributed feedback devices Gratings Gratings (spectra) Laser mode locking Lasing mode-lock Optical feedback Optical pulse generation Optical pulses optical time-division multiplexing (OTDM) Optical variables control Pulse generation Spectra Tunable circuits and devices Wavelength division multiplexing Wavelengths
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Beschreibung
Zusammenfassung:	An optical high-frequency pulse generation method with wavelength tunability is presented by taking advantage of vernier-type gratings in a distributed Bragg reflector laser diode. Experimental results showed that sinusoidal optical pulses, whose lasing wavelengths were tunable, were created with repetition frequencies around 30 GHz. The widths of the radio frequency spectra, furthermore, were drastically reduced by means of mode locking with externally injected optical pulses.
ISSN:	1041-1135 1941-0174
DOI:	10.1109/LPT.2005.850889