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Led, Laser Diode & Photodiode

Characterization Apparatus

Model : HO-ED-LOE-06

Lasers and LEDs are interesting equipments in electronics. Light emitting diode is a semiconductor light source and a Laser diode is a device with an active medium of semiconductor itself. HOLMARC provides a simple and an excellent experimental set up to find the characteristics of both LED and Laser diode. Using our set up you can find,

(1)    V-I characteristics of Laser diode and LED

(2)    P-I characteristics of Laser diode and LED

(3)    V-I and response characteristics of photo diode


HOLMARC’s apparatus HO-ED-LOE-06 consists of,

    An optoelectronic source and measurement unit - works as a power supply (0-5V variable), an ammeter (0-200mA) & voltmeter.

    An optical rail along with a Laser mount and a cell mount.

    A specially designed Power meter to find the Power of the Laser beam as well as LED light.

    A 3mW laser with power supply and a polarizer to find the characteristics of a photo diode





LEDs are connected in forward bias arrangement with the optoelectronic source and measurement unit and voltage applied across LED is varied and corresponding current is measured and plot the V-I characteristics of LED.

V-I & P-I characteristics of LED and Laser diode


Replace LED with Laser diode find the V-I characteristics. P-I characteristics of both Laser and LED can be found with the help of a power meter. External efficiency of the Laser diode depends on the slope dp / di.

To find the V-I characteristics of Photodiode, connect it in reverse bias, apply bias voltage and measure the corresponding current. Obtain Response characteristics of Photodiode by observing the variation of output current with respect to the polarizer angle. Experiment your electronic skills along with our apparatus...

Related Topics

    Photo transistor

    Opto-coupler

    LED

    Solar cell
    LDR

    Opto-electronics

    Photo diode
Scope of Supply


    Optical Rail

Model No: ED-LOE-02-OR
Length
:
500 mm
Material
:
Black anodized Aluminum alloy
Quantity
:
1 no.
Optical Rail

    Kinematic Laser Mount

Model No: ED-LOE-02-KLM
Material
:
Black anodized Aluminum alloy
Adjustmentsl
:
Using 80 tpi lead screws
Adjustment Range
:
+/-4 degrees
Quantity
:
1 no.
Kinematic Laser Mount

    Polarizer Rotator with Mount

Model No: ED-LOE-02-PRM
Material
:
Sheet Polarizer
Rotation
:
360 degree
Resolution
:
1 degree
Quantity
:
1 no.
Polarizer Rotator with Mount

    Detector Mount

Model No: ED-LOE-02-DM
Material
:
Black anodized Aluminum alloy
Diameter
:
30 mm
Quantity
:
1 no.
Detector Mount

    Mounted Opto-Electronic Detectors

Model No: ED-LOE-02-MOED
1.    Light dependent resistor (LDR)
2.    Light emitting diode (LED)
3.    Photo Transistor
4.    Photo Diode
5.    Solar Cell
6.    Opto-Coupler
Quantity
:
1 no. each
Mounted Opto-Electronic Detectors

    Opto-Electronic Measurement Unit

Model No: ED-LOE-02-OEMU
Output Voltage
Port 1
:
0 - 5 Volt Variable
Port 2
:
5 Volt fixed
Quantity
:
1 no.
Opto-Electronic Measurement Unit

    Diode Laser with Power supply (Red)

Model No: ED-LOE-02-DLPR
Output Voltage
Wave length
:
650 nm
Optical power
:
3 mW
Quantity
:
1 no.
Diode Laser with Power supply (Red)

    Accessories

User Manual

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