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Laser Optics Lab

Model : HO-ED-LOL-01

Holmarc's Model no: HO-ED-LOL-01 is designed for performing innovative experiments and carrying out optics related projects. It covers all the major topics such as Michelson interferometer, diffraction, opto-electronics, optical fiber, laser, polarization etc. Experimental setups can be easily assembled on the optical breadboard. Students get hands on experience and knowledge of the experiment.

The laser optics lab consists of a honeycomb optical breadboard with rigid supports and various opto - mechanical and optical components. The components are fixed to the readboard by M6 socket head cap screws.

Total internal reflection is an optical phenomenon that happens when a ray of light strikes a medium boundary at an angle larger than the critical angle with respect to normal to the surface. If the refractive index is lower on the other side of the boundary and the incident angle is greater than the critical angle, no light can pass through and all of the light is reflected. Laser Optics Lab is designed to perform more than 30 experiments using diode laser. Instruction manual with complete information and diagrams is provided along with the apparatus.



Experiment Examples

    Michelson Interferometer
    Determination of wavelength of laser light

    Determination of refractive index of transparent materials


    Diffraction
    Diffraction of light by single slit

    Diffraction of light by double slit

    Diffraction of light by transmission grating

    Diffraction of light by single wire

    Diffraction of light by cross wire

    Diffraction of light by fine wire mesh

    Diffraction of light by pinhole

    Particle size determination

    Use of meter scale ruling as reflection grating

    To find the groove spacing of a CD by using it as reflection grating


    Laser
    Gaussian nature of the laser beam

    Beam spot measurements

    Divergence measurement

    Polarization nature of laser


    Optical Fiber
    Numerical aperture measurements

    Determination of bending loss in multi-mode fibers


    Opto-Electronics
    Characteristics of photo transistor

    Characteristics of photo diode

    Characteristics of light dependent resistor (LDR)

    Characteristics of solar cell

    Characteristics of light emitting diode (LED)

    Characteristics of opto - coupler


    Polarization
    Polarization of light and verification of Malus law

    Determination of refractive index of transparent material by finding Brewster's angle


    Absorption
    Study of absorption of laser light in various filters


    Total Internal Reflection
    Determination of refractive index of PMMA rod

    Determination of refractive index of liquids



Fig. Brewster’s Angle


Fig. Photo detector current as a function of the angular position of polarization plane of the analyzer

Malus Law

Features

    Easy to assemble experiment set up on an optical breadboard

    Rigid and portable support for optical breadboard

    Provides variety of components in a single package

    Ideal for the study of various properties of light

    Mechanical components are made out of anodized aluminum & stainless steel

    Precision optical components

Fig. An illustration of total internal reflection of light which is incident on a PMMA rod


Scope of Supply


    Optical Breadboard with Rigid Support (800x600mm)

Model No: ED-LOL-01-BBS
Dimensions
:
800mm x 600mm
Material
:
Stainless Steel
Quantity
:
1 no.
Optical Breadboard with Rigid Support (800x600mm)

    Kinematic Laser Mount

Model No: ED-LOL-01-KLM
Material
:
Black anodized Aluminum alloy
Adjustments
:
Using 80 tpi lead screws
Adjustment Range
:
+/-4 degrees
Quantity
:
1 no.
Kinematic Laser Mount

    Beam Splitter Mount

Model No: ED-LOL-01-BSM
Degrees of freedom
:
2 degrees
Material
:
Black anodized Aluminum alloy
Quantity
:
1 no.
Beam Splitter Mount

    Mirror Mount with Translation Stage

Model No: ED-LOL-01-MMT
Degrees of freedom
:
3 degrees
Fine adjustments
:
Using 80 tpi lead screws
Material
:
Black anodized Aluminium alloy
Quantity
:
1 no.
Mirror Mount with Translation Stage

    Mirror Mount with Precision Translation Stage

Model No: ED-LOL-01-MMPT
Degrees of freedom
:
3 degrees
Material
:
Black anodized Aluminium alloy
Least count of the micrometer
:
0.01 mm
Quantity
:
1 no.
Mirror Mount with Precision Translation Stage

    Rotation Stage

Model No: ED-LOL-01-RS
Resolution
:
2° / division
Material
:
Black anodized Aluminium alloy
Quantity
:
1 no.
Rotation Stage

    Screen with Mount

Model No: ED-LOL-01-SM
Dimension
:
75mm x 75mm
Quantity
:
1 no.
Screen with Mount

    Polarizer Rotator with Mount(Resolution 1°)

Model No: ED-LOL-01-PRM
Material
:
Sheet Polarizer
Rotation
:
360 degree
Resolution
:
1 degree
Quantity
:
1 nos.
Polarizer Rotator with Mount(Resolution 1°)

    Cell Mount

Model No: ED-LOL-01-CM
Material
:
Black anodized Aluminum alloy
Diameter
:
30 mm
Quantity
:
1 no.
Cell Mount

    XYZ Translation Stage(Resolution 0.01mm)

Model No: ED-LOL-01-XYZT
Material
:
Black anodized Aluminum alloy
Travel
:
Micrometer controlled
Resolution
:
0.01 mm
Quantity
:
1 no.
XYZ Translation Stage(Resolution 0.01mm)

    Laser Fiber Coupler(Magnification 10X)

Model No: ED-LOL-01-LFC
Magnification of objective
:
10 X
Positioning
:
Lead screw controlled
Quantity
:
1 no.
Laser Fiber Coupler(Magnification 10X)

    Meter Scale Mount

Model No: ED-LOL-01-MSM
Material
:
Black anodized Aluminum alloy
Cavity Thickness
:
3 mm
Quantity
:
1 no.
Meter Scale Mount

    Fiber Chuck Holder

Model No: ED-LOL-01-FCH
Material
:
Black anodized Aluminum alloy
Quantity
:
1 no.
Fiber Chuck Holder

    PMMA Mount

Model No: ED-LOL-01-PMM
Material
:
Black anodized Aluminum alloy
Quantity
:
1 no.
PMMA Mount

    PMMA Rod

Model No: ED-LOL-01-PMR
Chuck material
:
Poly Methyl Meth Acrylate
Size
:
200 x 25 x 25 mm
Quantity
:
1 no.
PMMA Rod Mount

    Bending Loss Apparatus

Model No: ED-LOL-01-BLA
Chuck material
:
Nylon
Step diameter
:
35, 45, 55, 65 mm
Quantity
:
1 no.
Bending Loss Apparatus

    Fiber Chuck

Model No: ED-LOL-01-FC
Material
:
Black anodized Aluminum alloy
Diameter
:
30 mm
Quantity
:
1 no.
Fiber Chuck

    Multi Mode Optical Fiber(735,240 microns)

Model No: ED-LOL-01-MMOF
Material
:
Plastic Fiber
Numerical Aperture
:
0.5
Core Dia
:
735, 240 microns
Length
:
5 meters
Quantity
:
2 nos.
Multi Mode Optical Fiber(735,240 microns)

    Mirror with Cell(Ф25 mm)

Model No: ED-LOL-01-MC
Diameter
:
25 mm
Thickness
:
6 mm
Material
:
Borofloat
Coating
:
Aluminium
Quantity
:
2 nos.
Mirror with Cell(Ф25 mm)

    Beam Splitter(50x50 mm)

Model No: ED-LOL-01-BS
Dimension
:
50 mm x 50 mm
Thickness
:
4 mm
R/T ratio
:
50 / 50
Material
:
N-BK7
Coating
:
Aluminium
Quantity
:
1 no.
Beam Splitter(50x50 mm)

    Plano Convex Lens with Cell(Ф30 mm)

Model No: ED-LOL-01-PCXL
Material
:
Borofloat
Diameter
:
30 mm
Focal Length
:
150 mm
Quantity
:
1 no.
Plano Convex Lens with Cell(Ф30 mm)

    Diffraction Cells

Model No: ED-LOL-01-DC
Single slit
:
50 & 100 micron
Double slit
:
100 & 200 micron
Transmission grating
:
30 lines / mm
Single wire
:
75 microns
Cross wire
:
75 microns
Wire mesh
:
65 microns (grove spacing)
Pinhole
:
400 microns
Quantity
:
7 nos.
Diffraction Cells

    Colour Filter

Model No: ED-LOL-01-CF
Material
:
PMMA
Diameter
:
30 mm
Colours
:
Red, Blue, Green & Yellow
Quantity
:
4 nos.
Colour Filter

    Glass Tank(100x100x50 mm)

Model No: ED-LOL-01-GT
Material
:
PMMA
Dimension
:
100 x 100 x 50 mm
Number of Cells
:
2 nos.
Quantity
:
1no. each.
Glass Tank(100x100x50 mm)

    Mounted Opto-Electronic Detectors

Model No: ED-LOL-01-MOED
Light dependent resistor (LDR)
Light emitting diode (LED)
Photo Transistor
Photo Diode
Solar Cell
Opto-Coupler
Quantity
:
6 nos.
Mounted Opto-Electronic Detectors

    Opto-Electronic Measurement Unit(230V AC / 50Hz)

Model No: ED-LOL-01-OEMU
Output Voltage
Port 1
:
0 - 5 Volt Variable
Port 2
:
5 Volt fixed
Quantity
:
1 no.
Opto-Electronic Measurement Unit(230V AC / 50Hz)

    Diode Laser with Power supply (Red)

Model No: ED-LOL-01-DLPR
Wave length
:
650 nm
Optical power
:
5 mW
Quantity
:
1 no.
Diode Laser with Power supply (Red)

    Diode Laser with Power supply (Michelson Red)

Model No: ED-LOL-01-DLPRM
Wave length
:
650 nm
Optical power
:
5 mW
Quantity
:
1 no.
Diode Laser with Power supply (Michelson Red)

    Diode Laser with Power supply (Red, without Lens)

Model No: ED-LOL-01-DLPRW
Wave length
:
650 nm
Optical power
:
3 mW
Quantity
:
1 no.
Diode Laser with Power supply (Red, without Lens)

    Detector Output Measurement Unit

Model No: ED-LOL-01-DOMU
Sensor Type
:
Photo Transistor
Display
:
7 segment, 3 ½ digit
Range
:
0 - 199 milli / micro amperes
Quantity
:
1 no.
Detector Output Measurement Unit

    Accessories

User Manual
Allen keys
Thumb Screws
Glass Slides
Sample Powder
Meter Scale
CD

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