Specification :

I. Product Features
ZY12201C LD/ LED Luminance Properties Testing Apparatus is designed for students to understand the basic working principle of semiconductor laser and LED, and principle of automatic power control APC and automatic current control. Thus help students to master the measurement method of average optical power and input current of these two light sources, and measurement of laser threshold current, as well as the measurement method of light source basic characteristics; understand temperature’ s influence on output power, and light source modulation method in practical application, etc.

II. Performance
( 1) power
l input: 220V± 10% .50Hz± 10%
( 2) LD/ LED current source
l Providing current ( Iop) max: 150mA
l Feedback measuring current ( Im) max: 2000uA
l Iop measuring accuracy: ± 0.5mA
l Iop resolution: 0.1mA
l Im measuring accuracy: ± 5µ A
l Im resolution: 1µ A
( 3) optical power meter
Probe Type Material InGaAs
Wavelength Range 800^ 1600nm
Input Interface FC
Apparatus Parameter Working Wavelength 850, 1300, 1310, 1480, 1550nm
Measuring Range
70^ + 10dBm 0.1nw^ 10mw
Measuring Precision ± 5%
Resolution Linear type presentation 1%  logarithmic display 0.01dBm
Temperature 0^ 40
( 4) Temperature controller
l External dimension: 72 H × 72 W mm
l Control mode: artificial intelligence regulating
l Input signal: Pt100 platinum resistance
l Output specification: 4^ 20mA
l Measurement range: -200 ^ 600
l Resolution: 0.1
l Precision: 0.5
l Alarming range: upper limit; lower limit; positive deviation; negative deviation
l Display: red and green digital tube
( 5) LD laser
1310nm semiconductor laser
Parameter Symbol Test Condition Mini Typical Value Max Unit
Rated Power Pout Iop= Ith+ 20 0.2
1 mW
Center Wavelength » CW 1290 1310 1330 nm
Spectral Width � » CW
2 5 nm
Threshold Current Ith CW
10 15 mA
Working Current Iop CW
Ith+ 20
mA
Detector Current Im CW 100

¼ A
Detector Dark Current Id CW

0.1 nA
1550nm semiconductor laser:
Parameter Symbol Test Condition Mini Typical Value Max Unit
Rated Power Pout Iop= Ith+ 20 1.0
2.0 mW
Center Wavelength » CW 1520 1550 1570 nm
Spectral Width � » CW
2 5 nm
Threshold Current Ith CW
10 15 mA
Working Current Iop CW
Ith+ 20
mA
Detector Current Im CW 50

¼ A
Detector Dark Current Id CW

0.1 ¼ A
( 6) LED
1310nm LED
Parameter Symbol Test Condition Mini Typical Value Max Unit
Rated Power Pout IF = 60mA 10

¼ W
Center Wavelength » CW 1280 1310 1350 nm
Spectral Width � » CW

170 nm
Working Voltage Vop CW
1.2 1.7 V
Increase and Decrease Time Tr/ Tf CW

3 ns
( 7) Signal Source
l sine wave: frequency 1.5KHZ^ 8KHZ; range: 0^ 3V
l square wave: frequency 1.5KHZ^ 8KHZ;
( 8) Modulation Mode
l Analog signal modulation
l Digital signal modulation
( 9) Voltmeter
l measurement range: 0^ 200mV, 0^ 2V, 0^ 20V
l mini resolution: 0.1mV
l max resolution: 10mV
( 10) External Feature
l volume: 450mm× 310mm× 155mm L× W× H
l weight: d10Kg
( 11) Working Condition
l temperature: -10 ^ 60
l humidity: d85%

III. Experiment Contents
l LD laser V/ I feature test
l LD laser P/ I feature test
l LD laser T/ I feature test
l LD laser T/ P current feature test
l LD light source modulation experiment
l LED V/ I feature test
l LED P/ I feature test
l LED T/ I feature test
l LED T/ P feature test
l LED light source modulation experiment

IV. Specification
No. Items Mode Qty Status Remark
1 LD/ LED Luminance Properties Test Experiment Apparatus ZY12201C 1 required Anti-static wrist strap
1310nm Semiconductor Laser matching 1 optional At least one
2 LED Light Emitting Diode matching 1 optional
3 1550 Semiconductor Laser matching 1 optional
4 20M Double Trace Oscilloscope matching 1 Self-prepare