FOL-DUAL: Dual Wavelength Fiber Optic Laser Source And Detector Module

1) Provision for Analog input, TTL input and RS-232 input

2) Display to indicate forward voltage across and forward current flowing through LASER source

3) Voltage and current is varies using intensity control potentiometer

4) Built in pulse generator with pulse widths of 30ns and 100ns

5) All Connectors are suitable for ST type of connector interface
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‍Laser Driver Circuit
Digital and Continuous Wave Driver Circuits
i) Two driver modes are available in this system, one for pulse operation and analog transmission, other for continuous wave operation and Digital Transmission.
ii) These are controlled by rotary switch available on front panel.

Photodetector Circuit
i) Photodetector produces current in response to optical input.
ii) This current produced is then converted to voltage and amplified by amplifier.
iii) This amplified output is measured as electrical output.

1) Source - 1
i) Type : LASER
ii) Central Wavelength : 1310nm
iii) Spectral Width : 2nm
iv) Output Power : 0.8mW
v) Threshold Current : 5mA

2) Source - 2
i) Type : LASER
ii) Central Wavelength : 1550nm
iii) Spectral Width : 1nm
iv) Output Power : 0.9mW
v) Threshold Current : 5mA

3) Detector - 1
i) Type : PIN photo diode
ii) Spectral Bandwidth : 1250nm ~ 1600nm
iii) Responsivity : 0.8 A /W
iv) Bandwidth : 1.5 GHz

4) Detector - 2
i) Type : PIN TIA photo diode
ii) Spectral Bandwidth : 1150 ~ 1600nm
iii) Sensitivity : -37dbm
iv) Signal Bandwidth : 155 MHz
v) Date Rate : 155 Mbps

5) Pulse Generator
i) Pulse Width : Selectable from 30ns and 100ns
ii) 30ns Pulse Amplitude : 3V
iii) 100ns Pulse Amplitude : 4V