4 Pin Diode with Different Wavelengths and Output Powers 4 leg diode 850nm or 1550nm

4 Pin Diode with Different Wavelengths and Output Powers 4 leg diode 850nm or 1550nm 

Diode with 4 Pins ( 4 Legs or 4 Leads ), the 4 pins are :

LD +  LD - , PD + PD -

MQW F-P LD.
Single mode
Good high temperature characteristic
Built-in monitor PD
Low threshold/operate current
Metal can type hermetic

Applications:
Optical Sensing
Optical communication
Industrial automatic control
Science analysis and experiment
Test and Measurement Equipment