A 1.3-μm four-channel directly modulated laser array fabricated by SAG-Upper-SCH technology
Sign Up to like & getrecommendations! Published in 2017 at "Optics Communications"
DOI: 10.1016/j.optcom.2016.09.057
Abstract: Abstract A monolithically integrated four-channel directly modulated laser (DML) array working at the 1.3-μm band is demonstrated. The laser was manufactured by using the techniques of selective area growth (SAG) of the upper separate confinement… read more here.
Keywords: laser; channel directly; four channel; modulated laser ... See more keywords
Two 10 Gb/s directly modulated DBR lasers covering 20 nm wavelength range
Sign Up to like & getrecommendations! Published in 2020 at "Optics Communications"
DOI: 10.1016/j.optcom.2020.126236
Abstract: Abstract We report the application of two widely tunable directly modulated distributed Bragg reflector (DBR) lasers to cover over 20 nm wavelength. 10 Gb/s data are transmitted up to 30 km distance at different wavelengths… read more here.
Keywords: directly modulated; dbr lasers; two directly; wavelength range ... See more keywords
Employing a Kramers–Kronig receiver with a directly-modulated laser
Sign Up to like & getrecommendations! Published in 2021 at "Optics Communications"
DOI: 10.1016/j.optcom.2020.126472
Abstract: Abstract The Kramers–Kronig (KK) receiver has been used for dispersion compensation in direct detection systems employing external-modulator-based transmitters. In this paper, we investigate the use of the KK receiver for dispersion compensation in a direct… read more here.
Keywords: modulated laser; kronig receiver; directly modulated; laser ... See more keywords
Experimental Investigation on Improved Predistortion Circuit for Directly Modulated Radio Over Fiber System
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Photonics Journal"
DOI: 10.1109/jphot.2017.2727687
Abstract: An extension of the conventional dual Schottky diode-based predistortion circuit (PDC) is proposed to linearize directly modulated radio over fiber (RoF) system. The main advantages of the proposed PDC are simple configuration, excellent distortion suppression,… read more here.
Keywords: system; modulated radio; fiber; circuit ... See more keywords
Design of 1.3- $\mu \text{m}$ High-Performance Directly Modulated Lasers Based on High-Order Slotted Surface Gratings
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Journal of Quantum Electronics"
DOI: 10.1109/jqe.2017.2730160
Abstract: 1.3- $\mu \text{m}$ high-speed directly modulated lasers (DMLs) based on high-order slotted surface gratings are proposed. The time-domain travelling-wave model combined with the 2-D scattering matrix method is employed for the analysis of the proposed… read more here.
Keywords: based high; high order; tex math; directly modulated ... See more keywords
25 Gb/s Directly Modulated Widely Tunable 1.3 μm Dual Wavelength DFB Laser for THz Communication
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Photonics Technology Letters"
DOI: 10.1109/lpt.2020.2976569
Abstract: We report a high speed directly modulated widely tunable dual wavelength distributed feedback (DFB) laser for THz communication application. The wavelength separation between the two modes can be thermally tuned between 96 GHz and 1510… read more here.
Keywords: dual wavelength; directly modulated; thz communication; wavelength ... See more keywords
Directly modulated 1.3 μm quantum dot lasers epitaxially grown on silicon.
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DOI: 10.1364/oe.26.007022
Abstract: We report the first demonstration of direct modulation of InAs/GaAs quantum dot (QD) lasers grown on on-axis (001) Si substrate. A low threading dislocation density GaAs buffer layer enables us to grow a high quality… read more here.
Keywords: quantum dot; epitaxially grown; lasers epitaxially; dot lasers ... See more keywords
Directly modulated optical negative feedback lasers for long-range FMCW LiDAR.
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DOI: 10.1364/oe.452284
Abstract: Frequency sweep operation of directly modulated optical negative feedback lasers is numerically and experimentally investigated for frequency-modulated continuous-wave (FMCW) light detection and ranging (LiDAR) with a high signal-to-noise ratio (SNR), particularly over a long range.… read more here.
Keywords: optical negative; fmcw; long range; negative feedback ... See more keywords
30 Gbit/s PAM4 transmission using an 8-GHz directly modulated multi-section laser.
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DOI: 10.1364/oe.457603
Abstract: This paper describes the characterization of a novel directly modulated multi-section laser with a master-slave configuration. Amplitude and phase noise measurements show relative intensity noise values of around -150 dB/Hz and a 3-dB linewidth of… read more here.
Keywords: section laser; transmission; gbit pam4; modulated multi ... See more keywords
Directly modulated deformed-square-FP coupled-cavity laser with intracavity-mode photon-photon resonance.
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DOI: 10.1364/oe.526165
Abstract: We propose and demonstrate a high-speed directly modulated laser based on a hybrid deformed-square-FP coupled cavity (DFC), aiming for a compact-size low-cost light source in next-generation optical communication systems. The deformed square microcavity is directly… read more here.
Keywords: laser; square coupled; directly modulated; coupled cavity ... See more keywords
Advancing LWIR FSO communication through high-speed multilevel signals and directly modulated quantum cascade lasers.
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DOI: 10.1364/oe.530228
Abstract: This study investigates the potential of long-wave infrared (LWIR) free-space optical (FSO) transmission using multilevel signals to achieve high spectral efficiency. The FSO transmission system includes a directly modulated-quantum cascade laser (DM-QCL) operating at 9.1 µm… read more here.
Keywords: directly modulated; nrz ook; multilevel signals; modulated quantum ... See more keywords