Reference: Lab Experiments Journal vol-6, No.4, Page-309 Lab Experiments Journal vol-10, No.1, Page-60

Numerical aperture, divergence angle, attenuation and bandwidth of OFC

Experiment(s):

Determination of numerical aperture and divergence angle of Optical Fibre Cable (OFC)

Determination of attenuation in optical fibre cable

Determination of bandwidth of optical fibre cable

Specifications

1 . X-Y Bed

                    Bed length: 220 mm
Screen: 35 mm dia
Graduations on screen: 2 mm
Movement: Course and fine using screw movement
                  

2 . Laser

                    Type: Semiconductor diode Laser
Wavelength: 625 nm (Red)
Output Power: 3 mW
Mount: Cast iron base with  levelling screw

Power supply
Output: Suitable for 3 mW & 5mW semiconductor Lasers
Rated Input: 220 V/50 Hz or 110 V/60 Hz
Mains cord: 2 pin
                  

3 . Optical Fibre Cable (OFC):

                    Length: 1.5m or 3m
Core dia of the cable: 0.5mm
                  

4 . Relative light intensity metre

                    Optical detector: Input from OFC
Rated Input: 220 V/50 Hz or 110 V/60 Hz
Mains cord: 3 pin
                  

5 . Signal generator

                    Max frequency: 10 MHz
Max amplitude: Suitable for Laser
                  

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