Study the response of PIN diode in both forward bias and reverse bias conditions.

• Optical bench makes precise optical alignment easy
• Easy light intensity adjustment via two polarizers
• Simple, color-coded electrical connections

The PN-junction diodes, though versatile, have a few limitations regarding the amount of current they could handle before breakdown and also have low switching frequency, low power handling capacity, and low quantum efficiency. To overcome all these issues PIN diode was designed. PIN diodes are also extensively used as photodiodes in PIN photodiode configuration and are very important in optical fiber communication.