For this assessment, you will collect experimental data as part of a group, which will form the basis of an individual submission. Laser source • Type: Diode (U22000, 3B Scientific) • Wavelength: 650 nm • Beam profile: See additional information provided • Initial beam diameter: See additional information provided Launch configuration • Single plano-convex focussing optic with effective focal length of 50 mm Fiber optic • Type: SMA connectorized patch cable • Core diameter: 200 µm • Refractive index of core: 1.47 • Refractive index of cladding: 1.4543 • Maximum power density at air-glass interface: 1 GW/cm2 (based on peak power, determined at a wavelength of 1064 nm and a pulse duration of 10 ns) Questions 1) Considering all information provided regarding the laser source, launch configuration and fiber optic, determine whether or not the entirety of the incident beam is launched effectively into the fibre optic. You may use any additional measurements from the laboratory session to support your answer to this question.
For this assessment, you will collect experimental data as part of a group, which will form the
basis of an individual submission.
Laser source
• Type: Diode (U22000, 3B Scientific)
• Wavelength: 650 nm
• Beam profile: See additional information provided
• Initial beam diameter: See additional information provided
Launch configuration
• Single plano-convex focussing optic with effective focal length of 50 mm
Fiber optic
• Type: SMA connectorized patch cable
• Core diameter: 200 µm
• Refractive index of core: 1.47
• Refractive index of cladding: 1.4543
• Maximum power density at air-glass interface: 1 GW/cm2 (based on peak power,
determined at a wavelength of 1064 nm and a pulse duration of 10 ns)
Questions
1) Considering all information provided regarding the laser source, launch configuration and
fiber optic, determine whether or not the entirety of the incident beam is launched effectively
into the fibre optic. You may use any additional measurements from the laboratory session
to support your answer to this question.
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