Extended L-Band InAs/InP Quantum-Dash Laser in Millimeter-Wave Applications

We report on the generation and transmission of a millimeter-wave (MMW) signal with a frequency of 28 GHz by employing an InAs/InP quantum-dash dual-wavelength laser diode (QD-DWL) emitting in the ~1610 nm extended L-band window. The self-injection locking (SIL) technique has been engaged to improve...

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Bibliographic Details
Published in:Photonics 2021-05, Vol.8 (5), p.167
Main Authors: Ragheb, Amr M., Tareq, Qazi, Alkhazraji, Emad, Esmail, Maged A., Alshebeili, Saleh, Khan, Mohammed Zahed Mustafa
Format: Article
Language:English
Subjects:
Capital expenditures
Communication
Frequency locking
Indium arsenides
Indium phosphides
Investigations
L-band wavelength region
Lasers
Millimeter waves
Molecular beam epitaxy
Noise
Noise reduction
Optics
Quadrature phase shift keying
quantum-dash lasers
Radio
radio-over-fiber
Semiconductor lasers
Spectrum allocation
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Summary:We report on the generation and transmission of a millimeter-wave (MMW) signal with a frequency of 28 GHz by employing an InAs/InP quantum-dash dual-wavelength laser diode (QD-DWL) emitting in the ~1610 nm extended L-band window. The self-injection locking (SIL) technique has been engaged to improve the linewidth and reduce the noise of the optical tone. Besides, the transmission of a 2 Gbits/s quadrature phase-shift keying (QPSK)-modulated 28-GHz MMW beat tone over a hybrid 20-km radio-over-fiber combined with 5-m radio-over-free-space-optics and up to 6-m radio frequency wireless link has been demonstrated. Moreover, comparing the proposed QD-DWL with a commercial laser showcased similar performance characteristics, making the QD-DWL a candidate source for MMW applications.
ISSN:2304-6732
2304-6732
DOI:10.3390/photonics8050167