Characterization of Semiconductor Optical Amplifiers...impact of the SOA’s optical noise on signal...
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Characterization of Semiconductor Optical Amplifiers M. Wang, X. Lv, M.S. Hai, and O. Liboiron-Ladouceur Photonic Systems Group, Department of Electrical and Computer Engineering, McGill University SOA OSA Attenuator Laser Gain Characterization Schematics Laser SOA OSA Attenuator The above characterization of a commercial SOA, the Kamelian-OPB-12-15, can be used as a reference for more complex experiments involving SOAs. The simulations were performed using the Optisystem software. Setup Polarization Dependent Gain: 1.02 dB at 90mA, 1550nm, -20dBm Input Power Results Laser SOA Driver PPG OSA MOD SOA PD Noise Source CLK Coupler Oscilloscope to visualize eye diagram Data Integrity Performance Schematics Setup Results The bit error rate quickly drops below the benchmark of 10 -9 for relatively low optical signal to noise ratio, which indicates good immunity to noise. 15V From Pulse Generator: 5V peak to peak, 1MHz To Oscilloscope for Output Current Monitoring Ground To Anode Pin on SOA To Cathode Pin on SOA Laser Diode Driver Testing The Picolas LDP-V 03-100 UF3 laser diode driver successfully outputs electrical current pulses at a frequency of 1MHz. However, minimum output current amplitude is around 300mA, which is too high for SOAs used in energy efficient networks. Setup Trigger Signal: 5V, 1MHz Output Current: Scale= -2A/V Results Conclusion 1) The Kamelian-OPB SOA was shown to have high gain with low injection current (15.8 dB gain with 150 mA current) and allows low error rate in data in the presence of noise.These characteristics make the SOA power efficient. 2) Also, although the Picolas diode driver’s output current is too high for common SOAs, producing current pulses at radio frequencies is a first step towards fast-switching SOAs. Future Work 1) Fine-tune parameters used for the simulation in Optisystem to match more closely the measured results. 2) Use a laser diode driver with lower output current and observe the pulses at the SOA’s output. With the increasing demand for computing power and energy efficiency in data centers, electronic interconnection networks seem to reach their physical limits and optical networks are one of the best alternatives. As part of the RODIN project, the goal of his summer research project was to characterize and explore the uses of an important component in optical networks, the semiconductor optical amplifiers (SOA). Namely, the amplifying performance of a SOA was tested under different conditions and compared to simulated results, the impact of the SOA’s optical noise on signal quality was analyzed. Also, a commercial laser diode driver was used to test its fast-switching function, which can play an important role in improving energy efficiency in optical networks. Introduction
Transcript of Characterization of Semiconductor Optical Amplifiers...impact of the SOA’s optical noise on signal...
Characterization of Semiconductor Optical Amplifiers M. Wang, X. Lv, M.S. Hai, and O. Liboiron-Ladouceur
Photonic Systems Group, Department of Electrical and Computer Engineering, McGill University
SOA
OSA
Attenuator
Laser
Gain Characterization
Sch
em
ati
cs
Laser
SOA
OSA
Attenuator
The above characterization
of a commercial SOA, the
Kamelian-OPB-12-15, can
be used as a reference for
more complex experiments
involving SOAs.
The simulations were
performed using the
Optisystem software.
Setu
p
Polarization Dependent
Gain: 1.02 dB
at 90mA, 1550nm,
-20dBm Input Power
Resu
lts
Laser SOA Driver
PPG
OSA
MOD SOA
PD
Noise
Source
CLK
Coupler
Oscilloscope to
visualize eye
diagram
Data Integrity Performance
Sch
em
ati
cs
S
etu
p
Resu
lts
The bit error rate
quickly drops below the
benchmark of 10-9 for
relatively low optical
signal to noise ratio,
which indicates good
immunity to noise.
15V
From Pulse
Generator:
5V peak to peak,
1MHz
To Oscilloscope for Output
Current Monitoring Ground
To Anode Pin on
SOA
To Cathode Pin
on SOA
Laser Diode Driver Testing
The Picolas LDP-V 03-100 UF3 laser diode driver
successfully outputs electrical current pulses at a frequency
of 1MHz. However, minimum output current amplitude is
around 300mA, which is too high for SOAs used in energy
efficient networks.
Setu
p
Trigger Signal: 5V, 1MHz Output Current: Scale= -2A/V
Resu
lts
Conclusion 1) The Kamelian-OPB SOA was shown to have high gain with low injection
current (15.8 dB gain with 150 mA current) and allows low error rate in data in
the presence of noise.These characteristics make the SOA power efficient.
2) Also, although the Picolas diode driver’s output current is too high for
common SOAs, producing current pulses at radio frequencies is a first
step towards fast-switching SOAs.
Future Work 1) Fine-tune parameters used for the
simulation in Optisystem to match more
closely the measured results.
2) Use a laser diode driver with lower
output current and observe the pulses at
the SOA’s output.
With the increasing demand for computing power and energy efficiency in data centers, electronic interconnection networks seem to reach their physical limits and optical networks
are one of the best alternatives. As part of the RODIN project, the goal of his summer research project was to characterize and explore the uses of an important component in optical
networks, the semiconductor optical amplifiers (SOA). Namely, the amplifying performance of a SOA was tested under different conditions and compared to simulated results, the
impact of the SOA’s optical noise on signal quality was analyzed. Also, a commercial laser diode driver was used to test its fast-switching function, which can play an important role in
improving energy efficiency in optical networks.
Introduction
