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Facilities @ IITM
Prof. Deepa Venkitesh’s lab at IIT-Madras features a comprehensive photonics frontend testbed. The Advanced Optical Communications (AOC) testbed, supported by the DoT, will enhance facilities with advanced modulation formats and multicore fiber technologies for high-precision photonic experiments.
List of Equipment's/Software
PRBS source – 2.5 Gbps, 10 Gbps (Optellent)
High speed PIN and APD detectors (10 GHz, 30 GHz, 50 GHz – Discovery, Newport, Finisar)
High speed amplitude modulators (10 GHz, 25 GHz – IXblue, Photline, EOSpace)
High speed Semiconductor optical amplifiers ( Response time 25 ps, Kamelian) with evaluation boards
Arbitrary waveform generator I (Keysight - M8195A - 23 GHz, 64 GS/s)
LabMaster Slave Acquisition Module
(LeCroy - LM 10-36Zi-A - 36 GHz, 80 GS/s, 16 Ch, 32 Mpts/Ch)
Sampling Oscilloscope (Lecroy SDA100G and Waveexpert 100 H – two-channel 30 Gbps)
Real-Time Scope (LeCroy LM 10-36Zi-A - 36 GHz, 16 Channel ADC, 80 Gsps)
Dual Polarization IQ Modulator (ID Photonics OMFT-C-01-FA - 60GHz)
Arbitrary waveform generator II (Keysight - M8199B - 80 GHz, 256 GS/s)
Coherent receiver and Optical Modulation Analyzer system II
(Keysight - N4391B - 110 GHz, 256 Gsa)
Coherent Optical Receiver (Quantifi Photonics - IQRX-1002-FC - 45 GHz, C+L band operation)
Optical Spectrum Analyzer I (Finisar 1265687 - WaveAnalyzer 100S, high resolution bandwidth (1.75 GHz) and small scan increment (312.5 MHz) in combination with a fast
update rate (scanning rate of 80 nm/s)).
Optical Spectrum Analyser II (Thorlabs OSA 203 B - 1.0 - 2.6 µm, Spectral Resolution 7.5 GHz)
Optical Spectrum Analyser III (Yokogawa AQ6370E-20-L1-B/FC/RFC - Resolution bandwidth accuracy: ±5% (Wavelength: 600 nm to 1700 nm, resolution setting: 0.1 to 2 nm)
L band Lasers - Quantifi Photonics - Wavelength 1565 to 1611 nm, 100 kHz linewidth.
Multi-core & PM Fiber Splicer (Fujikura - FSM-100P+)
Regular Spicer (Fujikura-88S+)
Electronic Spectrum Analyzer I (Rohde and Schwarz FSV30 – 30 GHz)
Electronic Vector Spectrum Analyzer II (Keysight N9030B - 2 Hz - 43 GHz).
- with Keysight VSA license (89600)
RF Source (Keysight N5183B - 43 GHz)
Vector Network Analyzer (Keysight N5244B - 10 MHz - 43 GHz)
Low phase noise analog signal generator (Upto 40 GHz)
IQ Modulator ( bandwidth 40 GHz)
Coherent Receiver (42 GHz)
RF Source (Holzworth HSM18001B - 20 GHz)
Multicore fiber field testbed was setup through the AOC testbed project
In-house built Recirculating loop, to emulate transmission distances > 1000 km
In-house built laser phase noise analyzer
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