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A GaSb/GaAs quantum-dot light-emitting diode (QD LED) with a single GaSb QD layer is investigated in this paper. The room-temperature photoluminescence (PL) peak blue shift with increasing excitation ...
ZnSe / ZnS Quantum-Dot Semiconductor Optical Amplifiers
Linear Absorption Coefficient Linear Emission Coefficient Rate Equations (Res) Noise Figure
2013/1/30
ZnSe quantum dot (QD) semiconductor optical amplifier (SOA) is studied theoretically using net gain for linear Absorption coefficient and linear emission and these results are used to calculate noise ...
Single-mode 1.52 μm InAs/InP quantum dot DFB lasers
Quantum devices Lasers distributed-feedback
2015/5/25
Single-mode InAs/InP quantum dot DFB lasers with side-mode suppression ratio greater than 62 dB are demonstrated, operating CW up to 80°C. Relative intensity noise was less than -153 dB/Hz from 1 MHz ...
437 GHz Optical Pulse Train Generation from a C-Band InAs/InP Quantum Dot Laser
Lasers pulsed Quantum-wel dot devices
2015/5/22
We demonstrate 437 GHz optical pulse train generation based on grating coupled external cavities using InAs/InP quantum dots as the gain material. It is the highest repetition rate ever produced by QD...
Broadband Wavelength Conversion with S/C/L-band Flexible Operation Using Cross-Gain-Modulation in a Single Quantum Dot SOA
All-optical devices Quantum-well dot devices
2015/5/22
We experimentally demonstrated operating original and converted wavelengths flexible wavelength conversion using cross-gain-modulation in a single quantum dot semiconductor optical amplifier with cove...
40-Gbit/s RZ-DPSK Wavelength Conversion Using Four-Wave Mixing in a Quantum Dot SOA
RZ-DPSK Wavelength Conversion Dot SOA
2015/5/15
We demonstrate, for the first time, all-optical wavelength conversion of 40-Gbit/s RZ-DPSK signal using four-wave mixing in a quantum dot semiconductor optical amplifier. We achieved error-free operat...
Raman Extended GPON using 1240 nm Semiconductor Quantum-Dot Lasers
Fiber optics communications Fiber optics links subsystems
2015/6/9
We present an experimental demonstration of GPON reach extension to 50 km with a 32-way PON split using Raman amplification of the upstream signal with 1240 nm quantum-dot pump lasers.
Highly Efficient Columnar-Quantum-Dot Semiconductor Optical Amplifier in High Temperature Condition
Semiconductor optical amplifiers Quantum dot devices
2015/6/8
A less temperature dependent columnar-quantum-dot semiconductor optical amplifier(CQD-SOA) with high efficiency is developed. At 50°C, a high penalty-free output power of~12 dBm together with a high g...
Quantum Dot SOA Dynamic Range Improvement for Phase Modulated Signals
Quantum dot devices Phase modulation
2015/6/8
A 10 dB input power dynamic range advantage is found for amplification of phase-encoded signals with quantum dot SOA compared to low confinement bulk SOA. The effect is attributed to differences in th...
10.3-Gb/s Operation over a Wide Temperature Range in 1.3-μm Quantum-dot DFB Lasers with High Modal Gain
Lasers distributed-feedback Quantum dot devices
2015/6/8
Temperature-stable 10.3-Gb/s operation was attained for 1.3-μm quantum-dot DFB lasers with high modal gain. Clearly-opened eye diagrams with the extinction ratio of over 5.2 dB were obtained from -40o...
Regenerative Amplification in a Quantum Dot SOA
All-optical devices Quantum dot devices Semiconductor optical amplifiers
2015/6/8
We report regenerative amplification of 10, 40 and 80 Gb/s return-to-zero (RZ) signals in a columnar quantum dot SOA (CQD-SOA). Self-phase-modulation (SPM) with a red-shifted band-pass filter and limi...
160 Gb/s Cross Gain Modulation in Quantum Dot SOA at 1550 nm
Cross Gain Modulation Quantum Dot SOA
2015/7/20
We report, for the first time, pattern-effect free wavelength conversion in a QD-SOA at 160 Gb/s in C-band. Very fast (10ps) 85% gain recovery and the use of a slightly detuned blue-shifted filter all...
Effect of the wetting layer on intensity noise in quantum dot laser
Effect intensity noise quantum dot laser
2015/7/17
We show through a simple theoretical formulation and in good agreement with experimental measurements that the wetting layer may increase the relative intensity noise at low frequencies in quantum-dot...
Low Penalty Cascaded Operation of a Monolithically Integrated Quantum Dot 1x8 Port Optical Switch
Cascaded Operation Monolithically Integrated Quantum Port Optical Switch
2015/7/16
A novel Quantum Dot monolithically integrated 1x8 switch is shown to provide robust routing of data at 10Gb/s modulation rates. Two cascaded switches providing, 1x64 functionality, operate with a powe...
Quantum-Dot Semiconductor Optical Booster Amplifier with Ultrafast Gain Recovery for Pattern-Effect Free Amplification of 80 Gb/s RZ-OOK Data Signals
Quantum-Dot Semiconductor Optical Booster Amplifier Ultrafast Gain Recovery Pattern-Effect Amplification RZ-OOK Data Signals
2015/7/16
We present an InGaAs/GaAs quantum dot semiconductor amplifier with a 90%-10% nonlinear gain recovery time of only 16 ps which enables pattern-effect free amplification of 80 Gb/s RZ-OOK data signals w...